DAVICOM DM9016EP

DAVICOM Semiconductor, Inc.
DM9016
10/100 Mbps 3-port Ethernet Switch Controller
with General Processor Interface
DATA SHEET
Preliminary
Version: DM9016--DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
CONTENT
1.
GENERAL DESCRIPTION............................................................................................. 11
2.
BLOCK DIAGRAM......................................................................................................... 11
3.
FEATURES .................................................................................................................... 12
4.
PIN CONFIGURATION : ................................................................................................ 13
5.
PIN DESCRIPTION ........................................................................................................ 14
5.1 Processor Bus Interface ............................................................................................................................... 14
5.2 General and LED pins ................................................................................................................................... 14
5.3 P2 MII / RMII / Reverse MII Interfaces .......................................................................................................... 14
5.3.1 MII Interfaces ........................................................................................................................................... 14
5.3.2 RMII Interfaces......................................................................................................................................... 15
5.3.3 Reverse MII Interfaces ............................................................................................................................. 15
5.4 EEPROM Interfaces ....................................................................................................................................... 15
5.5 LED Pins ......................................................................................................................................................... 16
5.6 Clock Interface............................................................................................................................................... 16
5.7 Network Interface .......................................................................................................................................... 16
5.8 Miscellaneous Pins ....................................................................................................................................... 17
5.9 Power Pins ..................................................................................................................................................... 17
5.10 Strap Pins Table .......................................................................................................................................... 18
5.10.1 Strap pin in 3-port mode......................................................................................................................... 18
5.10.2 Strap pin in 2-port mode......................................................................................................................... 19
2
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
6.
CONTROL AND STATUS REGISTER SET................................................................... 20
6.1 Network Control Register (00H) ................................................................................................................... 23
6.2 Network Status Register (01H)..................................................................................................................... 23
6.3 TX Control Register (02H)............................................................................................................................. 23
6.4 RX Control Register (05H) ............................................................................................................................ 23
6.5 RX Status Register (06H) .............................................................................................................................. 24
6.6 Receive Overflow Counter Register (07H) .................................................................................................. 24
6.7 Flow Control Register (0AH)......................................................................................................................... 24
6.8 EEPROM & PHY Control Register (0BH) ..................................................................................................... 24
6.9 EEPROM & PHY Address Register (0CH) ................................................................................................... 25
6.10 EPROM & PHY Data Register (0DH~0EH) ................................................................................................. 25
6.11 Wake Up Control Register (0FH)................................................................................................................ 25
6.12 Physical Address Register (10H~15H) ...................................................................................................... 25
6.13 Multicast Address Register (16H~1DH)..................................................................................................... 25
6.14 General Purpose Control Register (1EH) .................................................................................................. 26
6.15 General Purpose Register (1FH) ................................................................................................................ 26
6.16 RX Packet Length Low Register ( 20H ) .................................................................................................... 26
6.17 RX Packet Length High Register ( 21H ) ................................................................................................... 26
6.18 RX Additional Status Register ( 26H ) ....................................................................................................... 26
6.19 RX Additional Control Register ( 27H )...................................................................................................... 26
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
3
DM9016
3-port switch with Processor Interface
6.20 Vendor ID Register (28H~29H) ................................................................................................................... 26
6.21 Product ID Register (2AH~2BH) ................................................................................................................. 26
6.22 Chip Revision Register (2CH) .................................................................................................................... 26
6.23 Transmit Check Sum Control Register (31H) ........................................................................................... 27
6.24 Receive Check Sum Control Status Register (32H)................................................................................. 27
6.25 General Purpose Control Register 2 (34H) ............................................................................................... 27
6.26 General Purpose Register 2 (35H) ............................................................................................................. 27
6.27 General Purpose Control Register 3 (36H) ............................................................................................... 27
6.28 General Purpose Register 3 (37H) ............................................................................................................. 27
6.29 Processor Data Bus Driving Capability Register (38H) ........................................................................... 28
6.30 IRQ Pin Control Register (39H) .................................................................................................................. 28
6.31 Port 2 Driving Capability Register (3AH)................................................................................................... 28
6.32 RX Control Register 2 (3CH)....................................................................................................................... 28
6.33 TX Block Size Control Register (3FH) ....................................................................................................... 29
6.34 Monitor Register 1 (40H) ............................................................................................................................. 29
6.35 Monitor Register 2 (41H) ............................................................................................................................. 29
6.36 Monitor Register 3 (42H) ............................................................................................................................. 29
6.37 Monitor Register 4 (43H) ............................................................................................................................. 29
6.38 Switch Control Register (52H).................................................................................................................... 30
6.39 VLAN Control Register (53H) ..................................................................................................................... 30
6.41 Bandwidth LED Control Register (55H)..................................................................................................... 30
4
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
6.42 STP Control Register (56H) ........................................................................................................................ 30
6.43 DSP PHY Control Register (58H~59H)....................................................................................................... 30
6.44 Per Port Control/Status Index Register (60H)........................................................................................... 31
6.45 Per Port Control Data Register (61H) ........................................................................................................ 31
6.46 Per Port Status Data Register (62H) .......................................................................................................... 32
6.47 Per Port Forward Control Register (65H) .................................................................................................. 32
6.48 Per Port Ingress/Egress Control Register (66H) ...................................................................................... 33
6.49 Bandwidth Control Setting Register (67H)................................................................................................ 34
6.50 Per Port Block Unicast ports Control Register (68H) .............................................................................. 34
6.51 Per Port Block Multicast ports Control Register (69H)............................................................................ 34
6.52 Per Port Block Broadcast ports Control Register (6AH) ......................................................................... 34
6.53 Per Port Block Unknown ports Control Register (6BH) .......................................................................... 35
6.54 Per Port Security & STP Register (6CH).................................................................................................... 35
6.55 Per Port Priority Queue Control Register (6DH)....................................................................................... 35
6.56 Per Port VLAN Tag Low Byte Register (6EH) ........................................................................................... 36
6.57 Per Port VLAN Tag High Byte Register (6FH)........................................................................................... 36
6.58 Ethernet Address Control / Status Register 1 (70H) ................................................................................ 36
6.59 Ethernet Address Data Register (71H~76H) ............................................................................................. 36
6.60 Ethernet Address Control / Status Register 2 (77H) ................................................................................ 37
6.61 Snooping Control Register 1 (78H)............................................................................................................ 37
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
5
DM9016
3-port switch with Processor Interface
6.62 Snooping Control Register 2 (79H)............................................................................................................ 38
6.63 Snooping Control Register 3 (7AH) ........................................................................................................... 38
6.64 Snooping Control Register 4 (7BH) ........................................................................................................... 38
6.65 Snooping Control Register 5 (7CH) ........................................................................................................... 38
6.66 MIB counter Port Index Register (80H)...................................................................................................... 39
6.67 MIB counter Data Register (81H~84H)....................................................................................................... 39
6.68 Per Port RX Packet Length Control Register (88H) ................................................................................. 39
6.69 Port-based VLAN mapping table Registers (B0H~BFH).......................................................................... 40
6.70 TOS Priority Map Registers (C0H~CFH).................................................................................................... 40
6.71 VLAN Priority Map Registers (D0H~D1H) ................................................................................................. 43
6.72 Memory Data Pre-Fetch Read Command without Address Increment Register (F0H) ........................ 43
6.73 Memory Data Read Command with Address Increment Register (F2H)................................................ 43
6.74 Memory Data Read address Register (F4H).............................................................................................. 43
6.75 Memory Data Read address Register (F5H).............................................................................................. 43
6.76 Memory Data Write Command without Address Increment Register (F6H).......................................... 44
6.77 Memory Data Write Command with Address Increment Register (F8H) ............................................... 44
6.78 Memory Data Write address Register (FAH)............................................................................................. 44
6.79 Memory Data Write address Register (FBH)............................................................................................. 44
6.80 TX Packet Length Register (FCH~FDH) .................................................................................................... 44
6.81 Interrupt Status Register (FEH).................................................................................................................. 44
6.82 Interrupt Mask Register (FFH).................................................................................................................... 44
6
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
7.
EEPROM FORMAT........................................................................................................ 45
8.
PHY REGISTERS .......................................................................................................... 49
8.1 Basic Mode Control Register (BMCR) – 00H .............................................................................................. 50
8.2 Basic Mode Status Register (BMSR) – 01H ................................................................................................ 51
8.3 PHY ID Identifier Register #1 (PHYID1) – 02H............................................................................................. 52
8.4 PHY ID Identifier Register #2 (PHYID2) – 03H............................................................................................. 52
8.5 Auto-negotiation Advertisement Register (ANAR) – 04H.......................................................................... 53
8.6 Auto-negotiation Link Partner Ability Register (ANLPAR) – 05H ............................................................. 54
8.7 Auto-negotiation Expansion Register (ANER) - 06H ................................................................................. 55
8.8 DAVICOM Specified Configuration Register (DSCR) – 10H ...................................................................... 55
8.9 DAVICOM Specified Configuration and Status Register (DSCSR) – 11H ................................................ 57
8.10 10BASE-T Configuration/Status (10BTCSR) – 12H.................................................................................. 58
8.11 Power Down Control Register (PWDOR) – 13H........................................................................................ 58
8.12 (Specified config) Register – 14H .............................................................................................................. 59
8.13 DAVICOM Specified Receive Error Counter Register (RECR) – 16H ..................................................... 60
8.14 DAVICOM Specified Disconnect Counter Register (DISCR) – 17H ........................................................ 60
8.15 Power Saving Control Register (PSCR) – 1DH ......................................................................................... 60
8.16 DAVICOM indirect DATA Register (DATA) – 1EH .................................................................................... 60
8.17 DAVICOM indirect ADDR Register (ADDR) – 1FH.................................................................................... 60
8.18 DAVICOM indirect TX Amplitude Control Register (TX_OUT_CNTL) – indirect-04H ........................... 61
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
7
DM9016
3-port switch with Processor Interface
9.
FUNCTIONAL DESCRIPTION....................................................................................... 62
9.1 Processor bus and memory management function: ................................................................................. 62
9.1.1 Processor Interface .................................................................................................................................. 62
9.1.2 Direct Memory Access Control................................................................................................................. 62
9.1.3 Packet Transmission................................................................................................................................ 62
9.1.4 Packet Reception ..................................................................................................................................... 62
9.2 Switch function:............................................................................................................................................. 63
9.2.1 Address Learning ..................................................................................................................................... 63
9.2.2 Address Aging .......................................................................................................................................... 63
9.2.3 Packet Forwarding ................................................................................................................................... 63
9.2.4 Inter-Packet Gap (IPG) ............................................................................................................................ 63
9.2.5 Back-off Algorithm.................................................................................................................................... 63
9.2.6 Late Collision............................................................................................................................................ 63
9.2.7 Full Duplex Flow Control .......................................................................................................................... 63
9.2.8 Half Duplex Flow Control ......................................................................................................................... 64
9.2.9 Partition Mode .......................................................................................................................................... 64
9.2.10 Broadcast Storm Filtering....................................................................................................................... 64
9.2.11 Bandwidth Control.................................................................................................................................. 64
9.2.12 Port Monitoring Support ......................................................................................................................... 64
9.2.13 VLAN Support ........................................................................................................................................ 65
9.2.13.1 Port-Based VLAN................................................................................................................................ 65
9.2.13.2 802.1Q-Based VLAN........................................................................................................................... 65
9.2.13.3 Tag/Untag ........................................................................................................................................... 66
9.2.14 Priority Support ...................................................................................................................................... 66
9.2.14.1 Port-Based Priority .............................................................................................................................. 66
9.2.14.2 802.1p-Based Priority.......................................................................................................................... 66
9.2.14.3 DiffServ-Based Priority........................................................................................................................ 66
9.2.15 Address Table Accessing....................................................................................................................... 66
9.2.16 Access Rules of Address Table ............................................................................................................. 67
9.2.17 IGMP Snooping...................................................................................................................................... 70
9.2.18 Port Security........................................................................................................................................... 70
9.2.19 IPv6 MLD Snooping ............................................................................................................................... 70
9.2.20 Spanning Tree Protocol Support............................................................................................................ 71
8
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
9.3 MII Interface.................................................................................................................................................... 72
9.3.1 MII data interface ..................................................................................................................................... 72
9.3.2 MII Serial Management ............................................................................................................................ 72
9.3.3 Serial Management Interface ................................................................................................................... 73
9.3.4 Management Interface - Read Frame Structure ...................................................................................... 73
9.3.5 Management Interface - Write Frame Structure ...................................................................................... 73
9.4 Internal PHY functions .................................................................................................................................. 74
9.4.1 100Base-TX Operation ............................................................................................................................ 74
9.4.1.1 4B5B Encoder ....................................................................................................................................... 74
9.4.1.2 Scrambler .............................................................................................................................................. 74
9.4.1.3 Parallel to Serial Converter ................................................................................................................... 74
9.4.1.4 NRZ to NRZI Encoder ........................................................................................................................... 74
9.4.1.5 MLT-3 Converter ................................................................................................................................... 74
9.4.1.6 MLT-3 Driver ......................................................................................................................................... 74
9.4.1.7 4B5B Code Group................................................................................................................................. 75
9.4.2 100Base-TX Receiver .............................................................................................................................. 76
9.4.2.1 Signal Detect ......................................................................................................................................... 76
9.4.2.2 Adaptive Equalization............................................................................................................................ 76
9.4.2.3 MLT-3 to NRZI Decoder........................................................................................................................ 76
9.4.2.4 Clock Recovery Module ........................................................................................................................ 76
9.4.2.5 NRZI to NRZ ......................................................................................................................................... 76
9.4.2.6 Serial to Parallel .................................................................................................................................... 76
9.4.2.7 Descrambler .......................................................................................................................................... 76
9.4.2.8 Code Group Alignment.......................................................................................................................... 77
9.4.2.9 4B5B Decoder....................................................................................................................................... 77
9.4.3 10Base-T Operation................................................................................................................................. 77
9.4.4 Collision Detection ................................................................................................................................... 77
9.4.5 Carrier Sense ........................................................................................................................................... 77
9.4.6 Auto-Negotiation ...................................................................................................................................... 77
10.
DC AND AC ELECTRICAL CHARACTERISTICS ..................................................... 78
10.1 Absolute Maximum Ratings ....................................................................................................................... 78
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
9
DM9016
3-port switch with Processor Interface
10.2 Operating Conditions.................................................................................................................................. 78
10.3 DC Electrical Characteristics ..................................................................................................................... 79
10.4 AC characteristics ....................................................................................................................................... 79
10.4.1 Power On Reset Timing ......................................................................................................................... 79
10.4.2 Processor I/O Read Timing.................................................................................................................... 80
10.4.3 Processor I/O Write Timing .................................................................................................................... 81
10.4.4 Port 2 MII Interface Transmit Timing...................................................................................................... 82
10.4.5 Port 2 MII Interface Receive Timing....................................................................................................... 82
10.4.6 MII Management Interface Timing ......................................................................................................... 83
10.4.7 EEPROM Timing.................................................................................................................................... 83
11.
PACKAGE INFORMATION........................................................................................ 84
12.
ORDERING INFORMATION ...................................................................................... 85
10
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
1. General Description
The DM9016 is a fully integrated and cost-effective
fast Ethernet switch controller with two ports
10M/100M PHY, one port MII or RMII or Reverse MII
interface, and general processor bus interface. The
integrated two ports PHY are compliant with IEEE
802.3u standards and support HP Auto-MDIX
capabilities for twisted-pair cable transmit/receive
direction automatic switching. The MII interface
provides the flexibility to connect Ethernet PHY or
SoC with MII/RMII interface. The general processor
bus can be configured as 8-, 16-, or 32-bit data width.
The DM9016 is a managed Switch, not only provides
basic Layer-2 switch functions but offers advanced
features that include 802.1Q VLAN, priority queuing
management, bandwidth rate control, monitoring port
traffic, multicast packet filtering, port security and
hardware-based IGMP V1/V2 Snooping, etc.
The general processor bus can be configured as 8-,
16-, or 32-bit data width and interfaces to most
embedded
CPU.
The
DM9016
provides
TCP/UDP/IPv4 checksum offload function to alleviate
host CPU load for improved system performance.
The adjustable transmit/receive buffer of processor
port can facilitate CPU in processing applications
such as Video and Voice streaming. For power
management feature, the DM9016 support wake on
LAN function via link status change or magic packet
detection.
Additionally, the MIB counters, loop-back capability
and the memory Build-in Self Test (BIST) are useful
for system and board level diagnostic.
2. Block Diagram
Switch Engine
Port 0
MDI / MDIX
Port 1
MDI / MDIX
10/100M
PHY
10/100M
MAC
10/100M
PHY
10/100M
MAC
Port 2
Processor
Embedded
Memory
Switch
Controller
Memory
BIST
Memory
Management
10/100M
MAC
MII / RMII
Reverse MII
8 , 16 , 32 bit
Switch Fabric
LED
Control
Processor
Interface
Bandwidth
LEDs
Host
MAC
Bus
Control
Registers
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
MIB
Counters
EEPROM
Interface
EEPROM
11
DM9016
3-port switch with Processor Interface
3. Features
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
‰
12
Ethernet Switch with two 10/100Mb PHY, one MII/RMII/Reverse-MII port, and a flexible 8,
16, or 32-bit general processor bus interface
Store and Forward switching approach
Support HP Auto-MDIX
Support up-to 1K Unicast MAC addresses
Support IEEE 802.3x Flow Control in Full-duplex mode
Support Back Pressure Flow Control in Half-duplex mode
Per port supports ingress or egress bandwidth rate control
Support Broadcast/Multicast Storm Suppression
Support maximum packet length up to 1536(default)/1800/2032 bytes
Support head of Line (HOL) blocking prevention
Support MIB counters for diagnostic
General processor bus is slave architecture
General processor bus driving capability is adjustable
General processor bus supports TCP/UDP/IPv4 checksum offload
EEPROM interface for power up configuration
Support EEPROM 93C46/93C56 with auto-detecting
Driving capability of TXD/TXE of MII is adjustable
Per port supports 4 level priority queues by Port-based, 802.1p VLAN, and IP TOS priority.
The priority queue can be set at WRR(Weighted Round Robin) or Strictly(High priority
queue first)
Support 802.1Q VLAN up-to 16 VLAN group.
Support VLAN ID tag/untag options
MAC Address Table is accessible
Support 256-entry multicast address table
Support port security function
Support 32 entry hardware-based IGMP Snooping V1, V2
Support IPv6 Multicast Listener Discovery (MLD) Snooping V1
Support Spanning Tree Protocol
128 QFP package with 0.18um technology
1.8V internal core, 3.3V I/O with 5V tolerant
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
COL2
CRS2
65
RXER2
66
RXC2
67
RXDV2
GND
68
71
70
69
RXD2_1
VCC3
75
RXD2_2
RXD2_3
TEST1
76
73
TEST2
77
72
TEST3
78
RXD2_0
AVDDI
79
74
TX1-
TX1+
80
83
81
AGND
AGND
84
82
RX1-
RX1+
85
AVDDI
89
AVDD3
TX0TX0+
90
86
AGND
91
87
AGND
92
88
RX0-
RX0+
93
BGRES
AVDD3
94
BGRESG
95
96
4. Pin Configuration :
VCNTL
97
64
TXC2
VREF
98
63
TXE2
AVDD3
VCC3
99
62
VCC3
100
61
TXD2_0
X1
101
60
TXD2_1
X2
102
59
GND
LNK1_LED
103
58
TXD2_2
TXD2_3
57
VCCI
SPD1_LED
104
105
FDX1_LED
106
LNK0_LED
107
SPD0_LED
108
FDX0_LED
109
WOL
110
GP6
111
GP5
112
GP4
113
GP3
114
GP2
115
SCLK
116
GP1
117
GP0
118
BWLED0
119
VCCI
120
BWLED1
BWLED2
121
BWLED3
123
BWLED4
GND
124
56
MDIO
55
MDC
54
GND
53
PWRST#
52
EECS
51
50
DM9016
122
EECK
EEDO
49
EEDI
48
47
VCC3
46
SD30
45
GND
44
SD29
43
SD28
SD31
42
SD27
41
SD26
40
VCC3
39
SD25
DM9016-13-DS-P01
March 26, 2009
30
31
32
SD18
SD19
VCC3
29
SD17
27
26
28
SD16
GND
SD15
SD11
25
19
20
SD10
23
18
VCC3
24
17
SD9
VCCI
SD14
16
SD8
SD13
15
SD7
22
14
SD6
SD12
13
SD5
21
12
SD4
GND
10
11
GND
IOW#
CS#
CMD
Preliminary datasheet
SD3
SD20
9
33
8
128
SD1
SD21
SD2
34
7
127
SD0
GND
BWLED6
BWLED7
6
35
IRQ
126
5
SD22
BWLED5
IOR#
36
VCC3
SD23
125
3
4
SD24
37
1
2
38
13
DM9016
3-port switch with Processor Interface
5. Pin Description
I = Input, O = Output, I/O = Input / Output, O/D = Open Drain, P = Power, PD=internal pull-low (about 50K Ohm)
# = asserted Low
5.1 Processor Bus Interface
Pin No.
Pin Name
I/O
Description
1
CMD
I
2
CS#
I
Command Type
When high, the access of this command cycle is DATA
port
When low, the access of this command cycle is INDEX
port
Processor Chip select Command
3
IOW#
I
Processor Write Command
5
IOR#
I
Processor Read Command
6
IRQ
O
Interrupt Request
7,8,9,10,12,13,14,15,
16,17,19,20,22,23,25,26
28,29,30,31,33,34,36,37,
38,39,41,42,43,44,46,47
110
SD0~15
I/O
Processor Data Bus bit 0~15
SD16~31
I/O
WOL
O
Processor Data Bus bit 16~31 or
General purpose pins when data bus is in 16-bit mode
Issue a wake up signal when wake up event occurred.
Pin Name
I/O
GP0~6
I/O
BWLED0~7
I/O
5.2 General and LED pins
Pin No.
118,117,115,114,
113,112,111
119,121,122,123,
124,126,127,128
Description
General I/O Ports
Registers GPCR and GPR can program these pins
Bandwidth LED
5.3 P2 MII / RMII / Reverse MII Interfaces
5.3.1 MII Interfaces
Pin No.
Pin Name
55
MDC
56
MDIO
58,59,60,61
TXD2_3~0
I/O
O,PD
I/O
O,PD
63
64
65
66
67
68
70
71,72,73,74
O,PD
O,PD
I
I
I
I
I
I
14
TXE2
TXC2
CRS2
COL2
RXER2
RXC2
RXDV2
RXD2_3~0
Description
MII Serial Management Data Clock
MII Serial Management Data
Port 2 MII Transmit Data
4-bit nibble data outputs (synchronous to the TXC2)
Port 2 MII Transmit Enable
Port 2 MII Transmit Clock
Port 2 MII Carrier Sense
Port 2 MII Collision Detect
Port 2 MII Receive Error
Port 2 MII Receive Clock
Port 2 MII Receive Data Valid
Port 2 MII Receive Data
4-bit nibble data input (synchronous to RXC2)
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
5.3.2 RMII Interfaces
Pin No.
Pin Name
55
MDC
56
MDIO
58,59
TXD2_3~0
60,61
TXD2_1~0
63
TXE2
64
TXC2
65
CRS2
66
COL2
67
RXER2
68
RXC2
70
RXDV2
71,72
RXD2_3~2
73,74
RXD2_3~0
I/O
O,PD
I/O
O,PD
O,PD
O,PD
O,PD
I
I
I
I
I
I
I
Description
MII Serial Management Data Clock
MII Serial Management Data
Reserved
RMII Transmit Data
RMII Transmit Enable
Reserved
RMII CRS_DV
Reserved, tie to ground in application.
Reserved, tie to ground in application.
50MHz reference clock.
Reserved, tie to ground in application.
Reserved, tie to ground in application.
RMII Receive Data
5.3.3 Reverse MII Interfaces
Pin No.
Pin Name
55
MDC
56
MDIO
58,59,60,61
TXD2_3~0
I/O
O,PD
I/O
O,PD
63
64
65
TXE2
TXC2
CRS2
O,PD
O
O
66
67
68
70
71,72,73,74
COL2
RXER2
RXC2
RXDV2
RXD2_3~0
O
I
I
I
I
Description
Reserved
Reserved
Port 2 MII Transmit Data
4-bit nibble data outputs (synchronous to the TXC2)
Port 2 MII Transmit Enable
25MHz clock output
Port 2 carrier sense output when TXE2 orRXDV2
asserted
Port 2 collision output when TXE2 and RXDV2 asserted
Port 2 MII Receive Error
Port 2 MII Receive Clock
Port 2 MII Receive Data Valid
Port 2 MII Receive Data
4-bit nibble data input (synchronous to RXC2)
5.4 EEPROM Interfaces
Pin No.
Pin Name
I/O
49
50
EEDI
EEDO
I,PD
O,PD
51
EECK
O,PD
52
EECS
O,PD
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Description
EEPROM Data In
EEPROM Data Out
This pin is used serially to write op-codes, addresses and
data into the EEPROM.
EEPROM Serial Clock
This pin is used as the clock for the EEPROM data transfer.
EEPROM Chip Selection.
15
DM9016
3-port switch with Processor Interface
5.5 LED Pins
Pin No.
Pin Name
I/O
Description
104
LNK1_LED
O
105
SPD1_LED
O
106
FDX1_LED
O
107
LNK0_LED
O
108
SPD0_LED
O
109
FDX0_LED
O
Port 1 Link / Active LED
It is the combined LED of link and carrier sense signal
of the internal PHY1
Port 1 Speed LED
Its low output indicates that the internal PHY1 is
operated in 100M/S, or it is floating for the 10M mode of
the internal PHY1
Port 1 Full-duplex LED
Its low output indicates that the internal PHY1 is
operated in full-duplex mode, or it is floating for the
half-duplex mode of the internal PHY1
Port 0 Link / Active LED
It is the combined LED of link and carrier sense signal
of the internal PHY0
Port 0 Speed LED
Its low output indicates that the internal PHY0 is
operated in 100M/S, or it is floating for the 10M mode of
the internal PHY0
Port 0 Full-duplex LED
Its low output indicates that the internal PHY0 is
operated in full-duplex mode, or it is floating for the
half-duplex mode of the internal PHY0
Pin Name
I/O
Description
X1
X2
SCLK
I
O
I
Crystal 25MHz In or Oscillator in
Crystal 25MHz Out
External system clock source
Pin Name
I/O
Description
TX1+/RX1+/TX0+/RX0+/BGRES
BGGND
VCNTL
VREF
I/O
I/O
I/O
I/O
I/O
P
I/O
O
5.6 Clock Interface
Pin No.
101
102
116
5.7 Network Interface
Pin No.
80,81
84,85
88,89
92,93
95
96
97
98
16
Port 1 TP TX
Port 1 TP RX
Port 0 TP TX
Port 0 TP RX
Band gap Pin
Band gap Ground
1.8V Voltage control
Voltage Reference
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
5.8 Miscellaneous Pins
Pin No.
Pin Name
53
76
77
PWRST#
TEST1
TEST2
78
TEST3
5.9 Power Pins
Pin No.
4,18,32,40,48,62,75,100
24,57,120
11,21,27,35,45,
54,69,103,125
86,94,99
79,87
82,83,90,91
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
I/O
Description
I
Power on Reset.
I,PD Tie to ground in application
I,PD 0: 3-port mode
All ports are active in this mode.
1: 2-port mode
Only 2 ports are active in this mode. Port 1 or port 2
can be disabled by strap TXEN2. In this mode, the
disabled port’s memory resource is shared by
processor port and the other 2 ports.
I,PD Tie to ground in application
Pin Name
I/O
Description
VCC3
VCCI
GND
P
P
P
Digital 3.3V
Internal 1.8V core power
Digital GND
AVDD3
AVDDI
AGND
P
P
P
Analog 3.3V power
Analog 1.8V power
Analog GND
17
DM9016
3-port switch with Processor Interface
5.10 Strap Pins Table
1: pull-high 1K~10K, 0: default floating.
5.10.1 Strap pin in 3-port mode
Pin No.
Pin Name
Description
18
50
51
EECK
EEDO
52
EECS
55
MDC
58
TXD2_3
59
TXD2_2
60
61
TXD2_1
TXD2_0
63
TXEN2
115
GP2
114
GP3
113
GP4
Processor Data Bus Width
EECK
EEDO data width
0
0
16-bit (default)
0
1
32-bit
1
0
8-bit
1
1
(reserved)
Source of System Clock
0: system clock is internal 50MHz clock (default)
1: use SCLK pin as system clock
Polarity of IRQ
0: IRQ pin high active (default)
1: IRQ pin low active
ISA pin control
0: GP6/5 as normal usage (default)
1: GP6 as IO16, GP5 as IOWAIT
Port 2 force mode
0: Port 2 status from external PHY (N-way)
1: Port 2 in force mode
Port 2 mode
TXD2_1, TXD2_0
0
0
Port 2 is MII mode (default)
0
1
Port 2 is Reverse-MII mode
1
0
Port 2 is RMII mode
1
1
Reserved
Output Type of IRQ
0: IRQ pin is force output (default)
1: IRQ pin is open-collect
Port 2 Force mode Speed is: (when TXD2_2 pulled high)
0: 100Mbps
1: 10Mbps
Port 2 Force mode Duplex is : (when TXD2_2 pulled high)
0: full-duplex
1: half-duplex
Port 2 Force mode Link is: (when TXD2_2 pulled high)
0: link
1: non-link
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
5.10.2 Strap pin in 2-port mode
Pin No.
Pin Name
Description
50
51
EECK
EEDO
52
EECS
55
MDC
58
TXD2_3
59
TXD2_2
60
61
TXD2_1
TXD2_0
63
TXEN2
115
GP2
114
GP3
113
GP4
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Processor Data Bus Width
EECK
EEDO data width
0
0
16-bit (default)
0
1
32-bit
1
0
8-bit
1
1
(reserved)
Source of System Clock
0: system clock is internal 50MHz clock (default)
1: use SCLK pin as system clock
Polarity of IRQ
0: IRQ pin high active (default)
1: IRQ pin low active
ISA pin control
0: GP6/5 as normal usage (default)
1: GP6 as IO16, GP5 as IOWAIT
Port 2 force mode
0: Port 2 status from external PHY (N-way)
1: Port 2 in force mode
Port 2 mode
TXD2_1, TXD2_0
0
0
Port 2 is MII mode (default)
0
1
Port 2 is Reverse-MII mode
1
0
Port 2 is RMII mode
1
1
(reserved)
Disabled Port Selection
0: Port 2 is disabled (default)
1: Port 1 is disabled
Port 2 Force mode Speed is: (when TXD2_2 pulled high)
0: 100Mbps
1: 10Mbps
Port 2 Force mode Duplex is : (when TXD2_2 pulled high)
0: full-duplex
1: half-duplex
Port 2 Force mode Link is: (when TXD2_2 pulled high)
0: link
1: non-link
19
DM9016
3-port switch with Processor Interface
6. Control and Status Register Set
The DM9016 implements several control and status
registers (Register is 8 bit width), which can be accessed by
Register
Description
NCR
NSR
TCR
RCR
RSR
ROCR
FCR
EPCR
EPAR
EPDRL
EPDRH
WUCR
PAR
MAR
GPCR
GPR
RXPLLR
RXPLHR
RASR
RACR
VID
PID
CHIPR
TCSCR
RCSCSR
GPCR2
GPR2
GPCR3
GPR3
DRIVER
IRQCR
P2FRV
TXBSCR
MONIR1
MONIR2
MONIR3
SWITCHCR
VLANCR
SWITCHSR
BWLED
DSP1,2
P_INDEX
20
the host. All CSRs are set to their default values by
power-on or hardware or software reset unless specified
Offset
Default value
after reset
Network Control Register
00H
00H
Network Status Register
01H
00H
TX Control Register
02H
00H
RX Control Register
05H
00H
RX Status Register
06H
00H
Receive Overflow Counter Register
07H
00H
Flow Control Register
0AH
00H
EEPROM & PHY Control Register
0BH
00H
EEPROM & PHY Address Register
0CH
40H
EEPROM & PHY Low Byte Data Register
0DH
XXH
EEPROM & PHY High Byte Data Register
0EH
XXH
Wake Up Control Register (0FH)
0FH
00H
Processor Port Physical Address Registers
10H-15H
by EEPROM
Processor Port Multicast Address Registers
16H-1DH
XXH
General Purpose Control Register
1EH
01H
General Purpose Register
1FH
XXH
RX Packet Length Low Register
20H
00H
RX Packet Length High Register
21H
00H
RX Additional Status Register
26H
00H
RX Additional Control Register
27H
00H
Vendor ID
28H-29H
0A46H
Product ID
2AH-2BH
9016H
CHIP Revision
2CH
02H
Transmit Check Sum Control Register
31H
00H
Receive Check Sum Control Status Register
32H
00H
General Purpose Control Register 2
34H
00H
General Purpose Register 2
35H
00H
General Purpose Control Register 3
36H
00H
General Purpose Register 3
37H
00H
uP Data Bus driving capability Register
38H
21H
IRQ Control Register
39H
00H
Port 2 driving capability Register
3AH
21H
TX Block Size Control Register
3FH
20H
Monitor Register 1
40H
XXH
Monitor Register 2
41H
XXH
Monitor Register 3
42H
XXH
SWITCH Control Register
52H
00H
VLAN Control Register
53H
00H
SWITCH Status Register
54H
00H
Bandwidth LED Control Register
55H
FFH
DSP Control Register I,II
58H~59H
0000H
Per Port Control/Status Index Register
60H
00H
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
P_CTRL
P_STUS
P_RATE
P_BW
P_UNICAST
P_MULTI
P_BCAST
P_UNKNWN
P_SSTP
P_PRI
VLAN_TAGL
VLAN_TAGH
EACSR_1
EAD0
EAD1
EAD2
EAD3
EAD4
EAD5
EACSR_2
SCR_1
SCR_2
SCR_3
SCR_4
SCR_5
P_MIB_IDX
MIB_DAT
MIB_DAT
MIB_DAT
MIB_DAT
P_RX_LEN
PVLAN
TOS_MAP
VLAN_MAP
MRCMDX
Per Port Control Data Register
Per Port Status Data Register
Per Port Ingress and Egress Rate Control Register
Bandwidth Control Register
Per Port Block Unicast ports Control Register
Per Port Block Multicast ports Control Register
Per Port Block Broadcast ports Control Register
Per Port Block Unknown ports Control Register
Per Port Security & STP Register
Per Port Priority Queue Control Register
Per Port VLAN Tag Low Byte Register
Per Port VLAN Tag High Byte Register
Ethernet Address Control / Status Register 1
MAC Address bit 07~00
MAC Address bit 15~08
MAC Address bit 23~16
MAC Address bit 31~24
MAC Address bit 39~32
MAC Address bit 47~40
Ethernet Address Control / Status Register 2 (77H)
Snooping Control Register 1 (78H)
Snooping Control Register 2 (79H)
Snooping Control Register 3 (7AH)
Snooping Control Register 4 (7BH)
Snooping Control Register 5 (7CH)
Per Port MIB counter Index Register
MIB counter Data Register bit 0~7
MIB counter Data Register bit 8~15
MIB counter Data Register bit 16~23
MIB counter Data Register bit 24~31
Per Port RX Packet Length Control Register
Port-based VLAN mapping table registers
TOS Priority Map Register
VLAN priority Map Register
Memory Data Pre-Fetch Read Command Without Address
Increment Register
61H
62H
66H
67H
68H
69H
6AH
6BH
6CH
6DH
6EH
6FH
70H
71H
72H
73H
74H
75H
76H
77H
78H
79H
7AH
7BH
7CH
80H
81H
82H
83H
84H
88H
B0-BFH
C0-CFH
D0-D1H
F0H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
01H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
02H
00H
00H
00H
00H
00H
00H
00H
0FH
00H~FFH
50H,FAH
XXH
MRCMD
MRRL
MRRH
MWCMDX
Memory Data Read Command With Address Increment Register
F2H
F4H
F5H
F6H
XXH
00H
00H
XXH
F8H
XXH
FAH
FBH
FCH
FDH
FEH
00H
00H
XXH
XXH
00H
MWCMD
MWRL
MWRH
TXPLL
TXPLH
ISR
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Memory Data Read address Register Low Byte
Memory Data Read address Register High Byte
Memory Data Write Command Without Address Increment
Register
Memory Data Write Command With Address Increment
Register
Memory Data Write address Register Low Byte
Memory Data Write address Register High Byte
TX Packet Length Low Byte Register
TX Packet Length High Byte Register
Interrupt Status Register
21
DM9016
3-port switch with Processor Interface
IMR
Interrupt Mask Register
Key to Default
In the register description that follows, the default column
takes the form:
<Reset Value>, <Access Type>
Where:
<Reset Value>:
1
Bit set to logic one
0
Bit set to logic zero
X
No default value
P = power on reset default value
H = hardware reset command default value
S = software reset default value
22
FFH
00H
E = default value from EEPROM
T = default value from strap pin
<Access Type>:
RO = Read only
RW = Read/Write
R/C = Read and Clear
RW/C1=Read/Write and Cleared by write 1
WO = Write only
Reserved bits are shaded and should be written with 0.
Reserved bits are undefined on read access.
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
6.1 Network Control Register (00H)
Bit
Name
Default
Description
7
RESERVED
0,RO
Reserved
6
WAKEEN
PH0,WO Wakeup Event Enable
When set, it enables the wakeup function. Clearing this bit will also clear all
wakeup event status
This bit will not be affected after a software reset
5
CLR1
PH0,RW 0: REG. 01H auto-cleared after read
1: REG. 01H cleared by writing 1 to respected bit.
4:2
RESERVED
0,RO
Reserved
1
LBK
PH0,
Loopback Test Mode
RW
0
RST
PH0,RW Software reset and auto clear after 10us
6.2 Network Status Register (01H)
Bit
Name
Default
Description
7:6
RESERVED
0,RO
Reserved
PH0,
Link Change Status.
5
LINK_X_ST
W/C1
This bit is set after port 0 or 1 link changed. This bit is cleared by write 1
RESERVED
0,RO
Reserved
4
3
TX2END
PHS0,
TX Packet 2 Complete Status.
RW/C1
This bit is set after transmit completion of packet index 2
If bit 5 of NCR is set, this bit is cleared by write 1; Otherwise it can be cleared by
read or write 1.
2
TX1END
PHS0,
TX Packet 1 Complete status.
RW/C1
This bit is set after transmit completion of packet index 1
If bit 5 of NCR is set, this bit is cleared by write 1; Otherwise it can be cleared by
read or write 1.
1:0
RESERVED
0,RO
Reserved
6.3 TX Control Register (02H)
Bit
Name
Default
7:4
RESERVED
0,RO
3
CRC_DIS2 PHS0,RW
2
RESERVED
0,RO
1
CRC_DIS1 PHS0,RW
0
TXREQ
PHS0,RW
Description
Reserved
CRC Appends Disable for Packet Index 2
Reserved
CRC Appends Disable for Packet Index 1
TX Request. Auto clears after transmit completely
6.4 RX Control Register (05H)
Bit
Name
Default
7
HASHALL PHS0,RW
RESERVED PHS0,RW
6
5
RESERVED PHS0,RW
4
DIS_CRC
PHS0,RW
3
ALL
PHS0,RW
2
RESERVED PHS0,RW
1
PRMSC
PHS0,RW
0
RXEN
PHS0,RW
Filter All address in Hash Table
Reserved
Reserved
Discard CRC Error Packet
Pass All Multicast Packets
Reserved
Promiscuous Mode
RX Enable
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Description
23
DM9016
3-port switch with Processor Interface
6.5 RX Status Register (06H)
Bit
Name
Default
RESERVED
7
0,RO
6
MF
0,RO
5:4
PKT_TYPE
0,RO
3:2
1
0
SRCP
CE
FOE
0,RO
0,RO
0,RO
Description
Reserved
Multicast Frame
Received Frame Type
00: Reserved
01: IGMP packet
10: MLD packet
11: BPDU packet
Source Port Number
CRC Error
FIFO Overflow Error
6.6 Receive Overflow Counter Register (07H)
Bit
Name
Default
Description
7
RXFU
PHS0,R/C Receive Overflow Counter Overflow
This bit is set when the ROC has an overflow condition
6:0
ROC
PHS0,R/C Receive Overflow Counter
This is a statistic counter to indicate the received packet count upon FIFO overflow
6.7 Flow Control Register (0AH)
Bit
Name
Default
7:6
RESERVED
0,RO
5
FLOW_EN
PHS0,RW
4:0
RESERVED
0,RO
Description
Reserved
RX Flow Control Enable
Enables the pause packet for high/low water threshold control
Reserved
6.8 EEPROM & PHY Control Register (0BH)
Bit
Name
Default
Description
7
RESERVED
0,RO
Reserved
6
EETYPE
0,RO
EEPROM Type
0: 93C46
1: 93C56
5
REEP
PH0,RW Reload EEPROM.
Note: Driver needs to clear it up after the operation completes
4
WEP
PH0,RW Write EEPROM Enable
3
EPOS
PH0,RW EEPROM or PHY Operation Select
When reset, select EEPROM; when set, select PHY
2
ERPRR
PH0,RW EEPROM Read or PHY Register Read Command.
Note:: Driver needs to clear it up after the operation completes.
1
ERPRW
PH0,RW EEPROM Write or PHY Register Write Command.
Note:: Driver needs to clear it up after the operation completes.
0
ERRE
PH0,RO EEPROM Access Status or PHY Access Status
When set, it indicates that the EEPROM or PHY access is in progress
24
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
6.9 EEPROM & PHY Address Register (0CH)
Bit
Name
Default
Description
7:6
PHY_ADR PH01,RW PHY Address bit 1 and 0; the PHY address bit [4:2] is force to 0.
5:0
EROA
PH0,RW EEPROM Word Address or PHY Register Address
6.10 EPROM & PHY Data Register (0DH~0EH)
Bit
Name
Default
Description
7:0
EE_PHY_L
PH0,RW EEPROM or PHY Low Byte Data (0DH)
This data is made to write low byte of word address defined in Reg. CH to
EEPROM or PHY
7:0
EE_PHY_H
PH0,RW EEPROM or PHY High Byte Data (0EH)
This data is made to write high byte of word address defined in Reg. CH to
EEPROM or PHY
6.11 Wake Up Control Register (0FH)
Bit
Name
Type
Description
7:6
RESERVED
0,RO
Reserved
5
LINKEN
PHE0,RW Link Change Event Enable
When set, it enables Link Status Change Wake up Event
4
RESERVED
0,RO
Reserved
3
MAGICEN
PHE0,RW Magic Packet Event Enable
When set, it enables Magic Packet Wake up Event
2
LINKST
PH0,RO Link Change Event Status
When set, it indicates that Link Status Change Event (link of port 0 or 1) occurred
This bit can be cleared by write 1 to bit 5 of NSR or write 0 to bit 6 of NCR.
1
RESERVED
0,RO
Reserved
0
MAGICST
PH0,RO Magic Packet Event Status
When set, indicates the Magic Packet is received and Magic packet Event
occurred. This bit can be cleared by write 1 to bit 5 of NSR or write 0 to bit 6 of
NCR.
6.12 Physical Address Register (10H~15H)
Bit
Name
Default
7:0
PAB5
E,RW
Physical Address Byte 5
7:0
PAB4
E,RW
Physical Address Byte 4
7:0
PAB3
E,RW
Physical Address Byte 3
7:0
PAB2
E,RW
Physical Address Byte 2
7:0
PAB1
E,RW
Physical Address Byte 1
7:0
PAB0
E,RW
Physical Address Byte 0
(15H)
(14H)
(13H)
(12H)
(11H)
(10H)
6.13 Multicast Address Register (16H~1DH)
Bit
Name
Default
7:0
MAB7
X,RW
Multicast Address Byte 7
7:0
MAB6
X,RW
Multicast Address Byte 6
7:0
MAB5
X,RW
Multicast Address Byte 5
7:0
MAB4
X,RW
Multicast Address Byte 4
7:0
MAB3
X,RW
Multicast Address Byte 3
7:0
MAB2
X,RW
Multicast Address Byte 2
7:0
MAB1
X,RW
Multicast Address Byte 1
7:0
MAB0
X,RW
Multicast Address Byte 0
(1DH)
(1CH)
(1BH)
(1AH)
(19H)
(18H)
(17H)
(16H)
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Description
Description
25
DM9016
3-port switch with Processor Interface
6.14 General Purpose Control Register (1EH)
Bit
Name
Default
Description
7
RESERVED
0,RO
Reserved
6:0
GPC
PH,0,RW General Purpose Control 6~0
Define the input/output direction of pins GP6~0 respectively. 1: output, 0:input
6.15 General Purpose Register (1FH)
Bit
Name
Default
Description
7
RESERVED
0,RO
Reserved
6:0
GEPIO
X,RW
General Purpose Data 6~0
These bits are reflect to pin GP6~0 respectively.
6.16 RX Packet Length Low Register ( 20H )
Bit
Name
Default
7:0
RXPLL
PH,RO
RX Packet Length Low Byte
Description
6.17 RX Packet Length High Register ( 21H )
Bit
Name
Default
7:0
RXPLH
PH,RO
RX Packet Length High Byte
Description
6.18 RX Additional Status Register ( 26H )
Bit
Name
Default
Description
7:4
RESERVED
0,RO
Reserved
1:0
uP Received Pointer Status
Only available when RX pointer restriction is enabled ( Reg27h.7=0).
RPTRS
PH,RO
00: Within buffer
01: End of buffer
1x: Exceed buffer
6.19 RX Additional Control Register ( 27H )
Bit
Name
Default
RPRD
PHS0,RW RX Pointer Restriction Disable
7
6:0
RESERVED
0,RO
Reserved
6.20 Vendor ID Register (28H~29H)
Bit
Name
Default
7:0
VIDH
PE,0AH,RO
Vendor ID High Byte (29H)
7:0
VIDL
PE,46H.RO
Vendor ID Low Byte (28H)
6.21 Product ID Register (2AH~2BH)
Bit
Name
Default
7:0
PIDH
PE,90H,RO
Product ID High Byte (2BH)
7:0
PIDL
PE,16H.RO
Product ID Low Byte (2AH)
6.22 Chip Revision Register (2CH)
Bit
Name
Default
7:0
CHIPR
P02H,RO
CHIP Revision
26
Description
Description
Description
Description
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
6.23 Transmit Check Sum Control Register (31H)
Bit
Name
Default
Description
7~3
RESERVED
0,RO
Reserved
2
UDPCSE
HP0,RW
UDP Checksum Generation Enable
1
TCPCSE
HP0,RW
TCP Checksum Generation Enable
0
IPCSE
HP0,RW
IP Checksum Generation Enable
6.24 Receive Check Sum Control Status Register (32H)
Bit
Name
Default
Description
7
UDPS
HP0,RO
UDP Checksum Status
1: if UDP packet checksum fail
6
TCPS
HP0,RO
TCP Checksum Status
1: if TCP packet checksum fail
5
IPS
HP0,RO
IP Checksum Status
1: if IP packet checksum fail
4
UDPP
HP0,RO
This is a UDP Packet
3
TCPP
HP0,RO
This is a TCP Packet
2
IPP
HP0,RO
This is a IP Packet
1
RCSEN
HPS0,RW Receive Checksum Checking Enable
When set, the checksum status will store in packet first byte of status header.
0
DCSE
HPS0,RW Discard Checksum Error Packet
When set, if IP/TCP/UDP checksum field is error, this packet will be discarded.
6.25 General Purpose Control Register 2 (34H)
Bit
Name
Default
Description
7~0
GPC2
HP0,RW General Purpose Control 2
Define the input/output direction of pins SD23~16, which are used as general
purpose pins when none 32-bit mode and external MII mode, respectively.
6.26 General Purpose Register 2 (35H)
Bit
Name
Default
Description
7~0
GPD2
HP0,RW General Purpose Register 2 Data
When the correspondent bit of General Purpose Control Register 2 is set, the value
of the bit is reflected to pin SD23~16
When the correspondent bit of General Purpose Control Register 2 is 0, the value
of the bit to be read is reflected from correspondent pins SD23~16
6.27 General Purpose Control Register 3 (36H)
Bit
Name
Default
Description
7~0
GPC3
HP0,RW General Purpose Control 3
Define the input/output direction of pins SD31~24, which are used as general
purpose pins when none 32-bit mode and external MII mode, respectively.
6.28 General Purpose Register 3 (37H)
Bit
Name
Default
Description
7~0
GPD3
HP0,RW General Purpose Register 3 Data
When the correspondent bit of General Purpose Control Register 3 is set, the value
of the bit is reflected to pin SD31~24
When the correspondent bit of General Purpose Control Register 3 is 0, the value
of the bit to be read is reflected from correspondent pins SD31~24
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
27
DM9016
3-port switch with Processor Interface
6.29 Processor Data Bus Driving Capability Register (38H)
Bit
Name
Default
RESERVED
0,RW
Reserved
Description
7
6:5
ISA_CURR
4:3
2
Reserved
STEP
P01,RW
P0,RW
P0,RW
1
IOW_SPIKE
P0,RW
0
IOR_SPIKE
P1,RW
SD Bus Current Driving/Sinking Capability
00: 2mA
01: 4mA (default)
10: 6mA
11: 8mA
Reserved
Data Bus Output stepping
1: disabled
0: enabled
Eliminate IOW spike
0: Disable
1: Eliminate about 2ns IOW spike
Eliminate IOR spike
0: Disable
1: Eliminate about 2ns IOR spike
6.30 IRQ Pin Control Register (39H)
Bit
Name
Default
7:5
IRQ_DELAY
PS0,RW
1
IRQ_TYPE
PET0,RW
0
IRQ_POL
PET0,RW
Description
IRQ Delayed Output Interval
This field determines the IRQ delayed output interval in multiples of 40
milliseconds(ms)
IRQ Pin Output Type Control
1: IRQ open-collector output
0: IRQ direct output
IRQ Pin Polarity Control
1: IRQ active low
0: IRQ active high
6.31 Port 2 Driving Capability Register (3AH)
Bit
Name
Default
Description
7
RESERVED
0,RO
Reserved
Port 2 TXD/TXE Current Driving/Sinking Capability
6:5
00: 2mA
P2_CURR
P01,RW
01: 4mA (default)
10: 6mA
11: 8mA
4:0
RESERVED
0,RW
Reserved
6.32 RX Control Register 2 (3CH)
Bit
Name
Default
7:2
Reserved
PS0,RO
1
DIS_BCAST
PH0,RW
0
28
NEXT_RX
PH0,RW
Description
Reserved
Abort broadcast packet if its size > 256 bytes
Jump to Next Start of Receiving Packet
Write 1 to launch and clear automatically after 10ns.
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
6.33 TX Block Size Control Register (3FH)
Bit
Name
Default
Description
7:6
Reserved
PS0,RO
Reserved
TX Block Size in 2-Port Mode
This value defines the transmit block size in 256-byte unit.
TX memory size = TX_SIZE * 256 bytes
5:0
TX_SIZE
P20h,RW
And then
RX memory size = 16KB – (TX_SIZE + 1)*256-Byte
Note: The value of TX_SIZE should be between 14H and 30H
6.34 Monitor Register 1 (40H)
Bit
Name
Default
7
BWIDTH
T0,RO
6
DWIDTH
T0,RO
5
IRQOC
ET0,RO
4
IRQP
ET0,RO
3:0
RESERVED
0,RO
8-bit Data Strap Latch Status
32-bit Data Strap Latch Status
IRQ Open-Collect Pin Status
IRQ Polarity Pin Status
Reserved
6.35 Monitor Register 2 (41H)
Bit
Name
Default
7
TEST3
RO
6
TEST2
RO
5
TEST1
RO
4
MDC
T0,RO
3
EECS
T0,RO
2
EECK
T0,RO
1
EEDO
T0,RO
0
EEDI
T0,RO
TEST3 pin
TEST2 pin
TEST1 pin
MDC Strap Status
EECS Strap Status
EECK Strap Status
EEDO Strap Status
EEDI Strap Status
6.36 Monitor Register 3 (42H)
Bit
Name
Default
7:4
RESERVED
0,RO
4
TXE2
T0,RO
3
TXD2_3
T0,RO
2
TXD2_2
T0,RO
1
TXD2_1
T0,RO
0
TXD2_0
T0,RO
Reserved
TXE2 Strap Status
TXD2_3 Strap Status
TXD2_2 Strap Status
TXD2_1 Strap Status
TXD2_0 Strap Status
6.37 Monitor Register 4 (43H)
Bit
Name
Default
7
RESERVED
0,RO
6:0
GPIO
T0,RO
Reserved
GPIO 0~6 Strap Status
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Description
Description
Description
Description
29
DM9016
3-port switch with Processor Interface
6.38 Switch Control Register (52H)
Bit
Name
Default
Description
7
MEM_BIST
PH0,RO
Address Memory Test BIST Status
0: OK
1: Fail
6
RST_SW
P0,RW
Reset Switch Core
Write 1 to launch and clear automatically after 10us.
5
RST_ANLG
P0,RW
Reset Analog PHY Core
Write 1 to launch and clear automatically after 10us.
4:3
SNF_PORT PHE00,RW Sniffer Port Number
2
CRC_DIS
PHE0,RW Switch CRC Checking Disable
1:0
RESERVED
0,RO
Reserved
6.39 VLAN Control Register (53H)
Bit
Name
Default
Description
7
TOS6
PHE0,RW Full ToS Using Enable
0: check most significant 3-bit only of TOS
1: check most significant 6-bit of TOS
6
RESERVED
0,RO
Reserved
5
UNICAST
PHE0,RW Unicast Packet Can Across VLAN Boundary
4
VIDFFF
PHE0,RW Replace VID FFF
3
VID1
PHE0,RW Replace VID 001
2
VID0
PHE0,RW Replace VID 000
1
PRI
PHE0,RW Replace Priority Field in The Tag
0
VLAN
PHE0,RW VLAN Mode Enable
0: port-base VLAN
1: 802.1Q base VLAN mode enable
6.41 Bandwidth LED Control Register (55H)
Bit
Name
Default
Description
7,6
RESERVED PH0,RW Reserved
5
P2_TX
PH1,RW Port 2 transmit as event of bandwidth LED source
4
P2_RX
PH0,RW Port 2 receive as event of bandwidth LED source
3
P1_TX
PH1,RW Port 1 transmit as event of bandwidth LED source
2
P1_RX
PH0,RW Port 1 receive as event of bandwidth LED source
1
P0_TX
PH1,RW Port 0 transmit as event of bandwidth LED source
0
P0_RX
PH0,RW Port 0 receive as event of bandwidth LED source
6.42 STP Control Register (56H)
Bit
Name
Default
Description
7:1
RESERVED
0,RO
Reserved
0
STPEN
PS0,RW Spanning Tree Protocol Enabled
6.43 DSP PHY Control Register (58H~59H)
58H:
Bit
7:0
30
Name
DSP_CTL1
Default
PH0,RW
Description
DSP Control Register 1 for testing only (register 58H)
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
59H:
Bit
7:0
Name
DSP_CTL2
Default
PH0,RW
Description
DSP Control Register 2 for testing only (register 59H)
6.44 Per Port Control/Status Index Register (60H)
Bit
Name
Default
Description
7:5
RESERVED PHS0,RW Reserved
4:2
RESERVED
0,RO
Reserved
1:0
INDEX
PHS0,RW Port index for register 61h~84h
Write the port number to this register before write/read register 61h~84h.
6.45 Per Port Control Data Register (61H)
Bit
Name
Default
Description
7
FAST_LEV
PHE0,RW IGMP Snooping Fast Leave Enable
6
PARTI_EN
PHE0,RW Enable Partition Detection
5
NO_DIS_RX PHE0,RW Don’t Discard RX Packets when Ingress Bandwidth Control
When received packets bandwidth reach Ingress bandwidth threshold,
the packets over the threshold are not discarded but with flow control.
4
FLOW_DIS
PHE0,RW Flow control in full duplex mode, or back pressure in half duplex mode
enable
0: enable
1: disable
3
BANDWIDTH PHE0,RW Bandwidth Control
0: Control with Ingress and Egress separately, ref to Register 66H.
1: Control with Ingress or Egress, ref to Register 67H
2
BP_DIS
PHE0,RW Broadcast packet filter
0: accept broadcast packets
1: reject broadcast packets
1
MP_DIS
PHE0,RW Multicast packet filter
0: accept multicast packets
1: reject multicast packets
0
MP_STORM
PE0,RW Broadcast Storm Control
0: only broadcast packets storm are controlled
1: multicast packets also same as broadcast storm control.
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
31
DM9016
3-port switch with Processor Interface
6.46 Per Port Status Data Register (62H)
Bit
Name
Default
Description
7:6
RESERVED
P0,RO
Reserved
5
LP_FCS
P0,RO
Link Partner Flow Control Enable Status
4
BIST
P0,RO
BIST status
0: SRAM BIST pass
1: SRAM BIST fail
3
RESERVED
0,RO
Reserved
2
SPEED2
P0,RO
Speed Status
0: 10Mbps, 1:100Mbps
1
FDX2
P0,RO
Duplex Status
0: half-duplex, 1: full-duplex
0
LINK2
P0,RO
Link Status
0: not Link status, 1: Link status
6.47 Per Port Forward Control Register (65H)
Bit
Name
Default
Description
7
LOOPBACK
PHE0,RW Loop-back Mode
6
MONI_TX
PHE0,RW TX Packet Monitored
5
MONI_RX
PHE0,RW RX Packet Monitored
4
DIS_BMP
PHE0,RW Broad/Multicast packet do not monitored
3
RESERVED
PH0,RW
Reserved
2
TX_DIS
PHE0,RW Packet Transmit Disabled
1
RX_DIS
PHE0,RW Packet Receive Disabled
0
ADR_DIS
PHE0,RW Address Learning Disabled
32
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
6.48 Per Port Ingress/Egress Control Register (66H)
Bit
Name
Default
7:4
INGRESS
PHE0,RW Ingress Rate Control
0000: none
0001: 64K
0010: 128K
0011: 256K
0100: 512K
0101: 1M
0110: 2M
0111: 4M
1000: 8M
1001: 16M
1010: 32M
1011: 48M
1100: 64M
1101: 72M
1110: 80M
1111: 88M
3:0
EGRESS
PHE0,RW Egress Rate Control
0000: none
0001: 64K
0010: 128K
0011: 256K
0100: 512K
0101: 1M
0110: 2M
0111: 4M
1000: 8M
1001: 16M
1010: 32M
1011: 48M
1100: 64M
1101: 72M
1110: 80M
1111: 88M
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Description
33
DM9016
3-port switch with Processor Interface
6.49 Bandwidth Control Setting Register (67H)
Bit
Name
Default
Description
7:4
BSTH
PHE0,RW Broadcast Storm Threshold
0000: no broadcast storm control
0001: 8K packets/sec
0010: 16K packets/sec
0011: 64K packets/sec
0100: 5%
0101: 10%
0110: 20%
0111: 30%
1000: 40%
1001: 50%
1010: 60%
1011: 70%
1100: 80%
1101: 90%
111X: no broadcast storm control
3:0
BW CTRL PHE0,RW Received packet length counted. Bandwidth table below.
0000: none
0001: 64K
0010: 128K
0011: 256K
0100: 512K
0101: 1M
0110: 2M
0111: 4M
1000: 8M
1001: 16M
1010: 32M
1011: 48M
1100: 64M
1101: 72M
1110: 80M
1111: 88M
6.50 Per Port Block Unicast ports Control Register (68H)
Bit
Name
Default
Description
7:4
RESERVED PH0,RW Reserved
3:0
BLK_UP
PH0,RW Ports of unicast packet be blocked
6.51 Per Port Block Multicast ports Control Register (69H)
Bit
Name
Default
Description
7:4
RESERVED PH0,RW Reserved
3:0
BLK_MP
PH0,RW Ports of multicast packet be blocked
6.52 Per Port Block Broadcast ports Control Register (6AH)
Bit
Name
Default
Description
7:4
RESERVED PH0,RW Reserved
3:0
BLK_BP
PH0,RW Ports of broadcast packet be blocked
34
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
6.53 Per Port Block Unknown ports Control Register (6BH)
Bit
Name
Default
Description
7:4
RESERVED PH0,RW Reserved
3:0
BLK_UKP
PH0,RW Ports of unknown packet be blocked
6.54 Per Port Security & STP Register (6CH)
Bit
Name
Default
Description
7:6
RESERVED
0,RO
Reserved
5:4
STPS
PH0,RW Spanning Tree Port State
There are 4 port state for supporting Spanning Tree Protocol
00: Forwarding State, The port transmits and receives packets normally &
learning is enabled.
01: Disabled State, The port will not transmit and receive any packets & learning
is disabled.
10: Learning State, The port will only forward the packets that are to and from
uP port (span packets) & leaning is enabled.
11: Blocking/Listening State, The port will only forward the packets that are to
and from uP port (span packets) & leaning is disabled.
3
RESERVED
0,RO
Reserved
2
PS_UNK
PH0,RW Unknown source address handling when port security is enabled
0: Discard unknown source address (Default)
1: Forward unknown source address to uP Port
1:0
PS_EN
PH0,RW Port Security Enable
00: Port Security Disable (Default)
01: First Lock
10: First Link Lock
11: Assign Lock
6.55 Per Port Priority Queue Control Register (6DH)
Bit
Name
Default
Description
7
TAG_OUT
PHE0,RW Output Packet Tagging Enable
6
PRI_DIS
PHE0,RW Priority Queue Disable
5
WFQUE
PHE0,RW 8:4:2:1
0: queue 3 > 2 > 1 > 0, means queue 3 always high priority
1: 8:4:2:1, means queue 3 has weighting 8, queue 2 has weighting 4,
etc
4
TOS_PRI
PHE0,RW Priority ToS over VLAN
3
TOS_OFF
PHE0,RW ToS Priority Classification Disable
2
PRI_OFF
PHE0,RW 802.1 p Priority Classification Disable
1:0
P_PRI
PHE0,RW Port Base priority
00= queue 0
01=queue 1
10=queue 2
11=queue 3
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
35
DM9016
3-port switch with Processor Interface
6.56 Per Port VLAN Tag Low Byte Register (6EH)
Bit
Name
Default
7:0
VID70
PHE01,RW VID[7:0]
6.57 Per Port VLAN Tag High Byte Register (6FH)
Bit
Name
Default
7:5
PRI
PHE0,RW Tag [15:13]
4
CFI
PHE0,RW Tag[12]
3:0
VID118
PHE0,RW VID[11:8]
Description
Description
6.58 Ethernet Address Control / Status Register 1 (70H)
Bit
Name
Default
Description
RESERVED
7
0,RO
Reserved
6:5
EACS
P0,RO
Status of Ethernet Address Command
00: Command OK, Entry Non-exist
a. Create an new entry when command is write
b. Do nothing when command is delete
c. Entry not found when command is search
d. Entry is invalid when command is read
01: Command OK, Entry Exist
a. Overwrite the entry when command is write
b. Delete entry when command is delete
c. Entry found when command is search
d. Entry is valid when command is read
1X: Command Error
4:3
EAI
PHY,RW Ethernet Address Table Index
00: Unicast Address Table
01: Multicast Address Table
10: IGMP Table (Read Only)
11: Reserved
2:1
EAC
PH0,RW Ethernet Address Command
00: Read
01: Write
10: Delete
11: Search
0
EAS
P0,RO
Ethernet Address Table Status
0: Available
1: Busy
6.59 Ethernet Address Data Register (71H~76H)
Bit
Name
Default
7:0
EAD0
PH0,RW MAC Address bit 07~00 (71H)
7:0
EAD1
PH0,RW MAC Address bit 15~08 (72H)
7:0
EAD2
PH0,RW MAC Address bit 23~16 (73H)
7:0
EAD3
PH0,RW MAC Address bit 31~24 (74H)
7:0
EAD4
PH0,RW MAC Address bit 39~32 (75H)
7:0
EAD5
PH0,RW MAC Address bit 47~40 (76H)
36
Description
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
6.60 Ethernet Address Control / Status Register 2 (77H)
Bit
Name
Default
Description
7
RESERVED
0,RO
Reserved
6
OVERRIDE
PH0,RW When writing table, this bit can set the entry to override the port’s setting in the
receiving disable state of STP. When reading table, it indicates the entry is override
one or not. This bit supports unicast and multicast address table both.
0: Entry is normal one.
1: Entry is override one.
5
IGMPE
PH0,RO When reading multicast address table, this bit indicated the entry is IGMP entry or
not.
0: Non-IGMP entry
1: IGMP entry
EA_STATIC
4
PH0,RW When writing unicast address table, this bit can be used to set the entry as static or
dynamic. When reading unicast address table, it indicates the entry is static or
dynamic.
0: Entry is dynamic.
1: Entry is static, never be age-out
3:0
PORT
PH0,RW Forwarding Port Number (0~3), when access Unicast Address Table.
Forwarding Port Mapping {uP, P2, P1, P0}, when access Multicast Address Table.
6.61 Snooping Control Register 1 (78H)
Bit
Name
Default
Description
7
RESERVED
0,RO
Reserved
6:5
UIPMPC
PH0,RW Unregistered IP Multicast Packet Control
The IP multicast packet with a destination address which does not match any of
groups announced in earlier IGMP Membership Reports, i.e. not found in the
IGMP membership table.
00: As normal multicast packets
01: Dropped.
10: Force forward to processor port.
11: Forward to all ports except incoming & uP port.
4
UD_IGR
PH0,RW User-defined IGMP Router Port Configuration Enable
0: Disable, the router portmap is automatic manipulation via IGMP snooping.
1: Enable, the router portmap is static defined by user.
3
SIGS2UP
PH0,RW IGMP Packet Forward to uP Port only when Software-IGS
2
HIGS2UP
PH0,RW IGMP Packet Forward to uP Port also when Hardware-IGS
0: IGMP packet doesn’t forwards to processor port when Hardware based
IGMP Snooping is enabled.
1: IGMP packet also forwards to processor port when Hardware based IGMP
Snooping is enabled.
1
SIGS_EN
PH0,RW Software-based IGMP Snooping Enable
0: Hardware based IGMP Snooping, without software intervention. (default)
1: Software based IGMP Snooping
0
IGS_EN
PH0,RW IGMP Snooping Enable
0: Disable
1: Enable
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
37
DM9016
3-port switch with Processor Interface
6.62 Snooping Control Register 2 (79H)
Bit
Name
Default
Description
7
SCP_PE
PH0,RW Snooping Control Packet Priority Enable
0: Disable
1: Enable
6:5
SCP_PRI
PH0,RW Snooping Control Packet Priority
00: Queue 0
01: Queue 1
10: Queue 2
11: Queue 3
4:3
SCP_OTC
PH0,RW Snooping Control Packet Output Tag Control
00: Unmodified
01: Always Tagged
10: Always Untagged
11: Reserved
2:0
RPP
PH0,RW Router Port Portmap
If User-defined IGMP Router Port Configuration is enabled, this 3-bit register is
used to define static router portmap, otherwise, this register is automatic
manipulation by IGMP snooping and read only.
6.63 Snooping Control Register 3 (7AH)
Bit
Name
Default
Description
7:0
QI
PH0,RW Query Interval
Define Query Interval when Hardware-IGS is enabled
6.64 Snooping Control Register 4 (7BH)
Bit
Name
Default
Description
7:2
RESERVED
0,RO
Reserved
1:0
RV
PH10,RW Robustness Variable
Define Robustness Variable when Hardware-IGS is enabled.
00 = Reserved
01 = 1 times
10 = 2 times (Default)
11 = 3 times
6.65 Snooping Control Register 5 (7CH)
Bit
Name
Default
Description
7:3
RESERVED
0,RO
Reserved
2
MLDS_OPT
PH0,RW MLD Snooping Option Enable
0: Disable
1: Enable
1
MLD2UP
PH0,RW MLD Packet Forward to uP Port only.
0
MLDS_EN
PH0,RW MLD Snooping Enable
0: Disable
1: Enable
38
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
6.66 MIB counter Port Index Register (80H)
Bit
Name
Default
Description
7
READY
P0,RO
MIB counter data is ready
6
MIB_DIS
PHS0,RW MIB Counter Disabled
This bit has the opposite meaning in write and read:
When write:
1: MIB counter disabled
When read:
1: MIB counter is enabled
5
RESERVED
0,RO
Reserved
4:0
INDEX
PHS0,RW MIB counter index 0~9, each counter is 32-bit in Register 81h~84h.
Write the MIB counter index to this register before read them.
6.67 MIB counter Data Register (81H~84H)
Bit
Name
Default
81H
Counter0
X,RO
Counter’s data bit 7~0
82H
Counter1
X,RO
Counter’s data bit 15~8
83H
Counter2
X,RO
Counter’s data bit 23~16
84H
Counter3
X,RO
Counter’s data bit 31~24
Description
MIB counter: RX Byte Counter Registers (00H)
MIB counter: RX Uni-cast Packet Counter Registers (01H)
MIB counter: RX Multi-cast Packet Counter Registers (02H)
MIB counter: RX Discard Packet Counter Registers (03H)
MIB counter: RX Error Packet Counter Registers (04H)
MIB counter: TX Byte Counter Registers (05H)
MIB counter: TX Uni-cast Packet Counter Registers (06H)
MIB counter: TX Multi-cast Packet Counter Registers (07H)
MIB counter: TX Discard Packet Counter Registers (08H)
MIB counter: TX Error Packet Counter Registers (09H)
6.68 Per Port RX Packet Length Control Register (88H)
Bit
Name
Default
7:2
RESERVED
PE0,RO
Reserved
1:0
PKT_LEN
PE0,RW Accept Packet Length
0X: 1536-byte
10: 1800-byte
11: 2032-byte
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Description
39
DM9016
3-port switch with Processor Interface
6.69 Port-based VLAN mapping table Registers (B0H~BFH)
Define the port member in VLAN group
There are 16 VLAN group that defined in Reg. B0H~BFH.
Group 0 defined in Reg. B0H, and group 1 defined in Reg. B1H … and so on.
Bit
Name
Default
Description
7:4
RESERVED PHE0,RO Reserved
2
PORT_P2
PHE1,RW Mapping to port 2
1
PORT_P1
PHE1,RW Mapping to port 1
0
PORT_P0
PHE1,RW Mapping to port 0
6.70 TOS Priority Map Registers (C0H~CFH)
Define the 6-bit or 3-bit of ToS field mapping to 2-bit priority queue number.
In 6-bit type, the Reg. 53H bit 7 is “1”, Reg. C0H bit [1:0] define the mapping for ToS value 0, Reg. 60H bit [3:2] define the
mapping for ToS value 1, … and so on, till Reg. CFH bit [7:6] define ToS value 63.
In 3-bit type, Reg. C0H bit [1:0] defines the mapping for ToS value 0, Reg. 60H bit [3:2] defines the mapping for ToS value 1 …
and so on, and till Reg. C1H bit [7:6] define ToS value 7.
C0H:
Bit
7:6
5:4
3:2
1:0
Name
TOS3
TOS2
TOS1
TOS0
Default
PHE0/1,RW
PHE0,/1RW
PHE0,RW
PHE0,RW
Description
If bit 53H.7 =1 :TOS[7:2]=03H, otherwise TOS]7:5]=03H
If bit 53H.7 =1 :TOS[7:2]=02H, otherwise TOS]7:5]=02H
If bit 53H.7 =1 :TOS[7:2]=01H, otherwise TOS]7:5]=01H
If bit 53H.7 =1 :TOS[7:2]=00H, otherwise TOS]7:5]=00H
Name
TOS7
TOS6
TOS5
TOS4
Default
PHE0/3,RW
PHE0/3,RW
PHE0/2,RW
PHE0/2,RW
Description
If bit 53H.7 =1 :TOS[7:2]=07H, otherwise TOS]7:5]=07H
If bit 53H.7 =1 :TOS[7:2]=06H, otherwise TOS]7:5]=06H
If bit 53H.7 =1 :TOS[7:2]=05H, otherwise TOS]7:5]=05H
If bit 53H.7 =1 :TOS[7:2]=04H, otherwise TOS]7:5]=04H
Name
TOSB
TOSA
TOS9
TOS8
Default
PHE0,RW
PHE0,RW
PHE0,RW
PHE0,RW
If bit 53H.7 =1 :TOS[7:2]=0BH
If bit 53H.7 =1 :TOS[7:2]=0AH
If bit 53H.7 =1 :TOS[7:2]=09H
If bit 53H.7 =1 :TOS[7:2]=08H
Name
TOSF
TOSE
TOSD
TOSC
Default
PHE0,RW
PHE0,RW
PHE0,RW
PHE0,RW
If bit 53H.7 =1 :TOS[7:2]=0FH
If bit 53H.7 =1 :TOS[7:2]=0EH
If bit 53H.7 =1 :TOS[7:2]=0DH
If bit 53H.7 =1 :TOS[7:2]=0CH
C1H:
Bit
7:6
5:4
3:2
1:0
C2H:
Bit
7:6
5:4
3:2
1:0
Description
C3H:
Bit
7:6
5:4
3:2
1:0
40
Description
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
C4H:
Bit
7:6
5:4
3:2
1:0
Name
TOS13
TOS12
TOS11
TOS10
Default
PHE1,RW
PHE1,RW
PHE1,RW
PHE1,RW
Description
If bit 53H.7 =1 :TOS[7:2]=13H
If bit 53H.7 =1 :TOS[7:2]=12H
If bit 53H.7 =1 :TOS[7:2]=11H
If bit 53H.7 =1 :TOS[7:2]=10H
Name
TOS17
TOS16
TOS15
TOS14
Default
PHE1,RW
PHE1,RW
PHE1,RW
PHE1,RW
If bit 53H.7 =1 :TOS[7:2]=17H
If bit 53H.7 =1 :TOS[7:2]=16H
If bit 53H.7 =1 :TOS[7:2]=15H
If bit 53H.7 =1 :TOS[7:2]=14H
Name
TOS1B
TOS1A
TOS19
TOS18
Default
PHE1,RW
PHE1,RW
PHE1,RW
PHE1,RW
If bit 53H.7 =1 :TOS[7:2]=1BH
If bit 53H.7 =1 :TOS[7:2]=1AH
If bit 53H.7 =1 :TOS[7:2]=19H
If bit 53H.7 =1 :TOS[7:2]=18H
Name
TOS1F
TOS1E
TOS1D
TOS1C
Default
PHE1,RW
PHE1,RW
PHE1,RW
PHE1,RW
If bit 53H.7 =1 :TOS[7:2]=1FH
If bit 53H.7 =1 :TOS[7:2]=1EH
If bit 53H.7 =1 :TOS[7:2]=1DH
If bit 53H.7 =1 :TOS[7:2]=1CH
Name
TOS23
TOS22
TOS21
TOS20
Default
PHE2,RW
PHE2,RW
PHE2,RW
PHE2,RW
If bit 53H.7 =1 :TOS[7:2]=23H
If bit 53H.7 =1 :TOS[7:2]=22H
If bit 53H.7 =1 :TOS[7:2]=21H
If bit 53H.7 =1 :TOS[7:2]=20H
Name
TOS27
TOS26
TOS25
TOS24
Default
PHE2,RW
PHE2,RW
PHE2,RW
PHE2,RW
C5H:
Bit
7:6
5:4
3:2
1:0
Description
C6H:
Bit
7:6
5:4
3:2
1:0
Description
C7H:
Bit
7:6
5:4
3:2
1:0
Description
C8H:
Bit
7:6
5:4
3:2
1:0
Description
C9H:
Bit
7:6
5:4
3:2
1:0
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Description
If bit 53H.7 =1 :TOS[7:2]=27H
If bit 53H.7 =1 :TOS[7:2]=26H
If bit 53H.7 =1 :TOS[7:2]=25H
If bit 53H.7 =1 :TOS[7:2]=24H
41
DM9016
3-port switch with Processor Interface
CAH:
Bit
7:6
5:4
3:2
1:0
Name
TOS2B
TOS2A
TOS29
TOS28
Default
PHE2,RW
PHE2,RW
PHE2,RW
PHE2,RW
Description
If bit 53H.7 =1 :TOS[7:2]=2BH
If bit 53H.7 =1 :TOS[7:2]=2AH
If bit 53H.7 =1 :TOS[7:2]=29H
If bit 53H.7 =1 :TOS[7:2]=28H
Name
TOS2F
TOS2E
TOS2D
TOS2C
Default
PHE2,RW
PHE2,RW
PHE2,RW
PHE2,RW
If bit 53H.7 =1 :TOS[7:2]=2FH
If bit 53H.7 =1 :TOS[7:2]=2EH
If bit 53H.7 =1 :TOS[7:2]=2DH
If bit 53H.7 =1 :TOS[7:2]=2CH
Name
TOS33
TOS32
TOS31
TOS30
Default
PHE3,RW
PHE3,RW
PHE3,RW
PHE3,RW
If bit 53H.7 =1 :TOS[7:2]=33H
If bit 53H.7 =1 :TOS[7:2]=32H
If bit 53H.7 =1 :TOS[7:2]=31H
If bit 53H.7 =1 :TOS[7:2]=30H
Name
TOS37
TOS36
TOS35
TOS34
Default
PHE3,RW
PHE3,RW
PHE3,RW
PHE3,RW
If bit 53H.7 =1 :TOS[7:2]=37H
If bit 53H.7 =1 :TOS[7:2]=36H
If bit 53H.7 =1 :TOS[7:2]=35H
If bit 53H.7 =1 :TOS[7:2]=34H
Name
TOS3B
TOS3A
TOS39
TOS38
Default
PHE3,RW
PHE3,RW
PHE3,RW
PHE3,RW
If bit 53H.7 =1 :TOS[7:2]=3BH
If bit 53H.7 =1 :TOS[7:2]=3AH
If bit 53H.7 =1 :TOS[7:2]=39H
If bit 53H.7 =1 :TOS[7:2]=38H
Name
TOS3F
TOS3E
TOS3D
TOS3C
Default
PHE3,RW
PHE3,RW
PHE3,RW
PHE3,RW
CBH:
Bit
7:6
5:4
3:2
1:0
Description
CCH:
Bit
7:6
5:4
3:2
1:0
Description
CDH:
Bit
7:6
5:4
3:2
1:0
Description
CEH:
Bit
7:6
5:4
3:2
1:0
Description
CFH:
Bit
7:6
5:4
3:2
1:0
42
Description
If bit 53H.7 =1 :TOS[7:2]=3FH
If bit 53H.7 =1 :TOS[7:2]=3EH
If bit 53H.7 =1 :TOS[7:2]=3DH
If bit 53H.7 =1 :TOS[7:2]=3CH
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
6.71 VLAN Priority Map Registers (D0H~D1H)
Define the 3-bit of priority field VALN mapping to 2-bit priority queue number
D0H:
Bit
7:6
5:4
3:2
1:0
Name
TAG3
TAG2
TAG1
TAG0
Default
PHE1,RW
PHE1,RW
PHE0,RW
PHE0,RW
VLAN priority tag value = 03H
VLAN priority tag value = 02H
VLAN priority tag value = 01H
VLAN priority tag value = 00H
Description
Name
TAG7
TAG6
TAG5
TAG4
Default
PHE3,RW
PHE3,RW
PHE2,RW
PHE2,RW
VLAN priority tag value = 07H
VLAN priority tag value = 06H
VLAN priority tag value = 05H
VLAN priority tag value = 04H
D1H:
Bit
7:6
5:4
3:2
1:0
Description
6.72 Memory Data Pre-Fetch Read Command without Address Increment Register (F0H)
Bit
Name
Default
Description
7:0
MRCMDX
X,RO
Read data from RX SRAM.
After the read of this command, the read pointer of internal SRAM is unchanged.
And the DM9016 starts to pre-fetch the SRAM data to internal data buffers.
6.73 Memory Data Read Command with Address Increment Register (F2H)
When register FFH bit 7 is “0”, register F5H value will be returned to 0000H, if 16K-byte boundary is reached.
When register FFH bit 7 is “1”, register F5H value will be returned to 0000H, if processor port receive memory byte boundary
address RX memory size, defined in register 3FH with default 1F00H, is reached.
Bit
7:0
Name
MRCMD
Default
X,RO
Description
Read data from RX SRAM.
After the read of this command, the read pointer is increased by 1,2, or 4,
depends on the operator mode (8-bit,16-bit and 32-bit respectively)
6.74 Memory Data Read address Register (F4H)
When register FFH bit 7 is “0”, register F5H and F4H can be used as memory byte address to read internal 64K-byte memory.
When register FFH bit 7 is “1”, register F5H and F4H can be used as processor port receive memory byte address with
memory space range from 0 to (RX memory size - 1), defined in register 3FH with default 1EFFH.
Bit
7:0
Name
MDRAL
Default
PHS0,RW
Description
Memory Data Read_ address Low Byte
6.75 Memory Data Read address Register (F5H)
Bit
Name
Default
Description
RESERVED
7-6
P0,RO
Reserved
5:4
MDRAH65 PHS0,RW Port number
3:0
MDRAH40 PHS0,RW Memory Data Read_ address [11:8]
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
43
DM9016
3-port switch with Processor Interface
6.76 Memory Data Write Command without Address Increment Register (F6H)
Bit
Name
Default
Description
7:0
MWCMDX
X,WO
Write data to TX SRAM.
After the write of this command, the write pointer is unchanged
6.77 Memory Data Write Command with Address Increment Register (F8H)
Bit
Name
Default
Description
7:0
MWCMD
X,WO
Write Data to TX SRAM
After the write of this command, the write pointer is increased by 1, 2, or 4,
depends on the operator mode. (8-bit, 16-bit,32-bit respectively)
6.78 Memory Data Write address Register (FAH)
Bit
Name
Default
Description
7:0
MDRAL
PHS0,RW Memory Data Write_ address Low Byte
6.79 Memory Data Write address Register (FBH)
Bit
Name
Default
Description
RESERVED
7,6
P0,RO
Reserved
5:4
MDRAH65 PHS0,RW Port number
3:0
MDRAH40 PHS0,RW Memory Data Write_ address [11:8]
6.80 TX Packet Length Register (FCH~FDH)
Bit
Name
Default
Description
7:0
TXPLH
PHS0,RW TX Packet Length High byte
7:0
TXPLL
PHS0,RW TX Packet Length Low byte
6.81 Interrupt Status Register (FEH)
Bit
Name
Default
7:6
M_WIDTH
T0, RO
5
4
3
2
1
0
LNKCHG
CNT_ERR
ROO
ROS
PT
PR
PHS0,RW/C1
PHS0,RW/C1
PHS0,RW/C1
PHS0,RW/C1
PHS0,RW/C1
PHS0,RW/C1
6.82 Interrupt Mask Register (FFH)
Bit
Name
Default
7
TXRX_EN
PHS0,RW
6
RESERVED
0,RO
5
LNKCHGI
PHS0,RW
4
CNT_ERR
PHS0,RW/C1
3
ROOI
PHS0,RW
2
ROI
PHS0,RW
1
PTI
PHS0,RW
0
PRI
PHS0,RW
44
Description
Memory Bus Width
Bit 7 Bit 6
0
0
16-bit mode
0
1
32-bit mode
1
0
8-bit mode
1
1
Reserved
Link Status Change of port 0 or 1
BLK Table Counter error
Receive Overflow Counter Overflow
Receive Overflow
Packet Transmitted
Packet Received
Description
Enable the SRAM read/write pointer used as transmit /receive address.
Reserved
Enable Link Status Change of port 0 or 1Interrupt
Enable BLK Table Counter error interrupt
Enable Receive Overflow Counter Overflow Interrupt
Enable Receive Overflow Interrupt
Enable Packet Transmitted Interrupt
Enable Packet Received Interrupt
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
7. EEPROM Format
Name
MAC address
Auto Load Control
0~2
3
Vendor ID
Product ID
Pin control
4
5
6
PHY control
7
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Word
Description
6 Byte Ethernet Address
Bit[1:0] = 01: Accept Setting of WORD4 and WORD5
Bit[3:2] = 01: Accept setting of WORD6 [4:0]
Bit[5:4] = Reserved, set to 00 in application
Bit[7:6] = 01: Accept setting of WORD7 [3:0]
Bit[9:8] = 01: Accept setting of WORD8 [4:0]
Bit[11:10] = 01: Accept setting of WORD7[13:8]
Bit[13:12] = Reserved, set to 00 in application
Bit[15:14] = 01: Accept setting of WORD7 [15:14]
2 byte vendor ID (Default: 0A46H)
2 byte product ID (Default: 9016H)
When word 3 bit [3:2] =01, these bits can control the CS#, IOR#, IOW#
and IRQ pins polarity.
Bit[0]
0: CS# pin is active low (default)
1: CS# pin is active high
Bit[1]
0: IOR# pin is active low (default)
1: IOR# pin is active high
Bit[2]
0: IOW# pin is active low (default)
1: IOW# pin is active high
Bit[3]
0: IRQ pin is active high (default)
1: IRQ pin is active low
Bit[4]
0: IRQ pin is force output (default)
1: IRQ pin is open-collected
Bit [15:5] = Reserved, set to 0 in application
Bit[0]
0: The WOL pin is active high (default)
1: The WOL pin is active low
Bit[1]
0: The WOL pin is in level mode (default)
1: The WOL pin is in pulse mode
Bit[2]
0: magic wakeup event is disable (default)
1: magic wakeup event is enabled
Bit[3]
0: link change wakeup event is disable (default)
1: link change wakeup event is enabled
Bit[7:4] = Reserved, set to 00 in application
Bit[8] = LED mode
0: LED in normal mode (default, description see chapter 5.5)
1: LED be changed to following mode
LNK0_LED/LNK1_LED active low indicates traffic active
FDX0_LED/FDX1_LED active low indicates 100Mbps mode
45
DM9016
3-port switch with Processor Interface
RESERVED
Control
8~15
16
Switch Control 1
17
RESERVED
Port 0 Control 1
18
19
Port 0 Control 2
20
Port 1 Control 1
21
Port 1 Control 2
22
Port 2 Control 1
23
Port 2 Control 2
24
uP Port Control 1
25
uP Port Control 2
26
Port 0 VLAN Tag
27
Port 1 VLAN Tag
28
Port 2 VLAN Tag
29
46
SPD0_LED/SPD1_LED active low indicates 10Mbps mode
Bit[13:9] = set to 00000 for reserved
Bit[14] = Port 1 AUTO-MDIX control 1: ON, 0: OFF(default ON)
Bit[15] = Port 0 AUTO-MDIX control 1: ON, 0: OFF(default ON)
Reserved
Bit[1:0] = 01: Accept setting of WORD 17,18
Bit[3:2] = 01: Accept setting of WORD 19~26
Bit[5:4] = 01: Accept setting of WORD 27~30
Bit[7:6] = 01: Accept setting of WORD 31
Bit[9:8] = 01: Accept setting of WORD 32~39
Bit[11:10] = 01: Accept setting of WORD 40~47
Bit[13:12] = 01: Accept setting of WORD 49~52
Bit[15:14] = Reserved, set to 0000 in application
When word 16 bit [1:0] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. 52H bit [7:0]
This word bit [15:8] will be loaded to Reg. 53H bit [7:0]
This word must be cleared to 0000, if word 16 bit [1:0]=01
When word 16 bit [3:2] is “01”, after power on reset:
This word bit [7:0] will be loaded to port 0 Reg. 61H bit [7:0]
This word bit [15:8] will be loaded to port 0 Reg. 66H bit [7:0]
When word 16 bit [3:2] is “01”, after power on reset:
This word bit [7:0] will be loaded to port 0 Reg. 67H bit [7:0]
This word bit [15:8] will be loaded to port 0 Reg. 6DH bit [7:0]
When word 16 bit [3:2] is “01”, after power on reset:
This word bit [7:0] will be loaded to port 1 Reg. 61H bit [7:0]
This word bit [15:8] will be loaded to port 1 Reg. 66H bit [7:0]
When word 16 bit [3:2] is “01”, after power on reset:
This word bit [7:0] will be loaded to port 1 Reg. 67H bit [7:0]
This word bit [15:8] will be loaded to port 1 Reg. 6DH bit [7:0]
When word 16 bit [3:2] is “01”, after power on reset:
This word bit [7:0] will be loaded to port 2 Reg. 61H bit [7:0]
This word bit [15:8] will be loaded to port 2 Reg. 66H bit [7:0]
When word 16 bit [3:2] is “01”, after power on reset:
This word bit [7:0] will be loaded to port 2 Reg. 67H bit [7:0]
This word bit [15:8] will be loaded to port 2 Reg. 6DH bit [7:0]
When word 16 bit [3:2] is “01”, after power on reset:
This word bit [7:0] will be loaded to port 3 Reg. 61H bit [7:0]
This word bit [15:8] will be loaded to port 3 Reg. 66H bit [7:0]
When word 16 bit [3:2] is “01”, after power on reset:
This word bit [7:0] will be loaded to port 3 Reg. 67H bit [7:0]
This word bit [15:8] will be loaded to port 3 Reg. 6DH bit [7:0]
When word 16 bit [5:4] is “01”, after power on reset:
This word bit [7:0] will be loaded to port 0 Reg. 6EH bit [7:0]
This word bit [15:8] will be loaded to port 0 Reg. 6FH bit [7:0]
When word 16 bit [5:4[ is “01”, after power on reset:
This word bit [7:0] will be loaded to port 1 Reg. 6EH bit [7:0]
This word bit [15:8] will be loaded to port 1 Reg. 6FH bit [7:0]
When word 16 bit [5:4] is “01”, after power on reset:
This word bit [7:0] will be loaded to port 2 Reg. 6EH bit [7:0]
This word bit [15:8] will be loaded to port 2 Reg. 6FH bit [7:0]
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
uP Port VLAN Tag
30
VLAN Priority Map
31
Port VLAN Group 0,1 32
Port VLAN Group 2,3 33
Port VLAN Group 4,5 34
Port VLAN Group 6,7 35
Port VLAN Group 8,9 36
Port VLAN Group
10,11
37
Port VLAN Group
12,13
38
Port VLAN Group
14,15
39
ToS Priority Map 0
40
ToS Priority Map 1
41
ToS Priority Map 2
42
ToS Priority Map 3
43
ToS Priority Map 4
44
ToS Priority Map 5
45
ToS Priority Map 6
46
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
When word 16 bit [5:4] is “01”, after power on reset:
This word bit [7:0] will be loaded to port 3 Reg. 6EH bit [7:0]
This word bit [15:8] will be loaded to port 3 Reg. 6FH bit [7:0]
When word 16 bit [7:6] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. D0H bit [7:0]
This word bit [15:8] will be loaded to Reg. D1H bit [7:0]
When word 16 bit [9:8] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. B0H bit [7:0]
This word bit [15:8] will be loaded to Reg. B1H bit [7:0]
When word 16 bit [9:8] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. B2H bit [7:0]
This word bit [15:8] will be loaded to Reg. B3H bit [7:0]
When word 16 bit [9:8] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. B4H bit [7:0]
This word bit [15:8] will be loaded to Reg. B5H bit [7:0]
When word 16 bit [9:8] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. B6H bit [7:0]
This word bit [15:8] will be loaded to Reg. B7H bit [7:0]
When word 16 bit [9:8] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. B8H bit [7:0]
This word bit [15:8] will be loaded to Reg. B9H bit [7:0]
When word 16 bit [9:8] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. BAH bit [7:0]
This word bit [15:8] will be loaded to Reg. BBH bit [7:0]
When word 16 bit [9:8] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. BCH bit [7:0]
This word bit [15:8] will be loaded to Reg. BDH bit [7:0]
When word 16 bit 9:8 is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. BEH bit [7:0]
This word bit [15:8] will be loaded to Reg. BFH bit [7:0]
When word 16 bit [11:10] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. C0H bit [7:0]
This word bit [15:8] will be loaded to Reg. C1H bit [7:0]
When word 16 bit [11:10] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. C2H bit [7:0]
This word bit [15:8] will be loaded to Reg. C3H bit [7:0]
When word 16 bit [11:10] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. C4H bit [7:0]
This word bit [15:8] will be loaded to Reg. C5H bit [7:0]
When word 16 bit [11:10] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. C6H bit [7:0]
This word bit [15:8] will be loaded to Reg. C7H bit [7:0]
When word 16 bit [11:10] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. C8H bit 7~0
This word bit [15:8] will be loaded to Reg. C9H bit 7~0
When word 16 bit [11:10] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. CAH bit [7:0]
This word bit [15:8] will be loaded to Reg. CBH bit [7:0]
When word 16 bit [11:10] is “01”, after power on reset:
This word bit [7:0] will be loaded to Reg. CCH bit [7:0]
47
DM9016
3-port switch with Processor Interface
ToS Priority Map 7
47
RESERVED
Port Security Control
48
49
Snooping Control 1
50
Snooping Control 2
51
Snooping Control 3
52
48
This word bit [15:8] will be loaded to Reg. CDH bit [7:0]
When word 16 bit [11:10] is “01”, after power on reset:
This word bit [7:0]0 will be loaded to Reg. CEH bit [7:0]
This word bit [15:8] will be loaded to Reg. CFH bit [7:0]
Reserved
When word 16 bit [13:12] is “01”, after power on reset:
This word bit [3:0] will be loaded to port 0 register 6CH bit [2:0]
This word bit [7:4] will be loaded to port 1 register 6CH bit [2:0]
This word bit [11:8] will be loaded to port 2 register 6CH bit [2:0]
When word 16 bit [13:12] is “01”, after power on reset:
This word bit [7:0] will be loaded to register 78H
This word bit [15:8] will be loaded to register 79H
When word 16 bit [13:12] is “01”, after power on reset:
This word bit [7:0] will be loaded to register 7AH
This word bit [15:8] will be loaded to register 7BH
When word 16 bit [13:12] is “01”, after power on reset:
This word bit [1:0] will be loaded to register 7CH bit [1:0]
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
8. PHY Registers
MII Register Description
ADD Name
15
00H CONTR Reset
OL
0
01H STATUS T4
Cap.
0
02H PHYID1
0
03H PHYID2
1
14
Loop
back
0
TX FDX
Cap.
1
0
0
13
12
11
Speed Auto-N Power
select
Enable Down
1
1
0
TX HDX 10 FDX 10 HDX
Cap.
Cap.
Cap.
1
1
1
0
0
0
1
1
1
04H Auto-Neg. Next
Advertise Page
05H Link Part. LP
Ability
Next
Page
06H Auto-Neg.
Expansio
n
10H Specifie BP
d
4B5B
Config.
11H Specifie 100
FDX
d
Conf/Stat
12H
10T
Rsvd
Conf/Stat
FLP Rcv
Ack
LP
Ack
Remote
Fault
LP
RF
Reserved
Reserved
10
Isolate
0
0
0
FC
Adv
LP
FC
9
8
Restart
Full
Auto-N Duplex
0
1
Reserved
7
Coll.
Test
0
6
5
4
Pream. Auto-N
Supr.
Compl.
0000
1
0
0
1
1
0
0
Model No.
01011
T4
TX FDX TX HDX 10 FDX 10 HDX
Adv
Adv
Adv
Adv
Adv
LP
LP
LP
LP
LP
T4
TX FDX TX HDX 10 FDX 10 HDX
Remote
Fault
0
0
BP
BP_ADP Reserve
ALIGN
OK
dr
100
HDX
10
FDX
LP
Enable
HBE
Enable
13H PWDOR
TX
JAB
Enable
LP Next
Pg Able
Next Pg
Able
Reserve Reserve Force Reserve Reserve RPDCTR Reset
d
d
100LNK
d
d
-EN
St. Mch
Pream.
Supr.
PHY ADDR [4:0]
Reserve
d
Reserved
1
PDchip
Extd
Cap.
1
1
New Pg LP AutoN
Rcv
Cap.
Sleep
mode
Remote
LoopOut
Auto-N. Monitor Bit [3:0]
Reserved
PD10DR PD100l
V
0
000_0000
Auto-N
Link
Jabber
Cap.
Status
Detect
1
0
0
0
0
0
Version No.
0000
Advertised Protocol Selector Field
Pardet
Fault
10 HDX Reserve Reverse Reverse
d
d
d
SQUE
Enable
2
Link Partner Protocol Selector Field
Reserved
BP
SCR
3
Reserved
PDcrm
Polarity
Reverse
PDaeq
PDdrv
PDecli
PDeclo
PD10
14H Specifie TSTSE TSTSE FORCE FORCE PREA TX10M NWAY Reserv MDIX_ AutoNe Mdix_fix Mdix_d MonSel MonSel Reserv PD_val
d config
1
2
_TXSD _FEF MBLEX _PWR _PWR
ed
CNTL g_dlpbk Value
own
1
0
ed
ue
16H RCVER
Receiver Error Counter
17H DIS_conn
ect
1DH PSCR
Reversed
Reversed
Disconnect_counter
PREA AMPLIT TX_P
MBLE UDE
WR
X
1EH DATA
1FH ADDR
Reversed
indirect data
indirect address
Key to Default
In the register description that follows, the default
column takes the form:
<Reset Value>, <Access Type> / <Attribute(s)>
Where:
<Reset Value>:
1
Bit set to logic one
0
Bit set to logic zero
X
No default value
<Access Type>:
RO = Read only,
RW = Read/Write
<Attribute (s)>:
SC = Self clearing, P = Value permanently set
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
49
DM9016
3-port switch with Processor Interface
8.1 Basic Mode Control Register (BMCR) – 00H
50
Bit
15
Bit Name
Reset
14
Loopback
13
Speed selection
12
Auto-negotiation
enable
11
Power down
10
Isolate
9
Restart
Auto-negotiation
8
Duplex mode
Default
Description
0, RW/SC Reset
0=Normal operation
1=Software reset
This bit sets the status and controls the PHY registers to their
default states. This bit, which is self-clearing, will keep returning a
value of one until the reset process is completed
0, RW
Loopback
Loop-back control register
0 = Normal operation
1 = Loop-back enabled
When in 100Mbps operation mode, setting this bit may cause the
descrambler to lose synchronization and produce a 720ms "dead
time" before any valid data appears at the MII receive outputs
1, RW
Speed Select
0 = 10Mbps
1 = 100Mbps
Link speed may be selected either by this bit or by auto-negotiation.
When auto-negotiation is enabled and bit 12 is set, this bit will return
auto-negotiation selected medium type
1, RW
Auto-negotiation Enable
0= Auto-negotiation is disabled
1 = Auto-negotiation is enabled, bit 8 and 13 will be in
auto-negotiation status
0, RW
Power Down
While in the power-down state, the PHY should respond to
management transactions. During the transition to power-down
state and while in the power-down state, the PHY should not
generate spurious signals on the MII
0=Normal operation
1=Power down
0,RW
Isolate
Force to 0 in application.
0,RW/SC Restart Auto-negotiation
0 = Normal operation
1 = Restart auto-negotiation. Re-initiates the auto-negotiation
process. When auto-negotiation is disabled (bit 12 of this register
cleared), this bit has no function and it should be cleared. This bit is
self-clearing and it will keep returning to a value of 1 until
auto-negotiation is initiated by the DM9016. The operation of the
auto-negotiation process will not be affected by the management
entity that clears this bit
1,RW
Duplex Mode
0 = Normal operation
1 = Full duplex operation. Duplex selection is allowed when
Auto-negotiation is disabled (bit 12 of this register is cleared). With
auto-negotiation enabled, this bit reflects the duplex capability
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
selected by auto-negotiation
7
Collision test
0,RW
6-0
Reserved
0,RO
Collision Test
0 = Normal operation
1 = Collision test enabled. When set, this bit will cause the COL
signal to be asserted in response to the assertion of TX_EN in
internal MII interface.
Reserved
Read as 0, ignore on write
8.2 Basic Mode Status Register (BMSR) – 01H
Bit
15
Bit Name
100BASE-T4
Default
0,RO/P
14
100BASE-TX
full-duplex
1,RO/P
13
100BASE-TX
half-duplex
1,RO/P
12
10BASE-T
full-duplex
1,RO/P
11
10BASE-T
half-duplex
1,RO/P
10-7
Reserved
0,RO
6
MF preamble
suppression
1,RO
5
Auto-negotiation
Complete
0,RO
4
Remote fault
0, RO
3
Auto-negotiation
ability
1,RO/P
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Description
100BASE-T4 Capable
0 = not able to perform in 100BASE-T4 mode
1 = able to perform in 100BASE-T4 mode
100BASE-TX Full Duplex Capable
0 = not able to perform 100BASE-TX in full duplex mode
1 = able to perform 100BASE-TX in full duplex mode
100BASE-TX Half Duplex Capable
0 = not able to perform 100BASE-TX in half duplex mode
1 = able to perform 100BASE-TX in half duplex mode
10BASE-T Full Duplex Capable
0 = not able to perform 10BASE-TX in full duplex mode
1 = able to perform 10BASE-T in full duplex mode
10BASE-T Half Duplex Capable
0 = not able to perform 10BASE-T in half duplex mode
1 = able to perform 10BASE-T in half duplex mode
Reserved
Read as 0, ignore on write
MII Frame Preamble Suppression
0 = not accept management frames with preamble suppressed
1 = accept management frames with preamble suppressed
Auto-negotiation Complete
0 = Auto-negotiation process not completed
1 = Auto-negotiation process completed
Remote Fault
0 = No remote fault condition detected
1 = Remote fault condition detected (cleared on read or by a chip
reset). Fault criteria and detection method is DM9016
implementation specific. This bit will set after the RF bit in the
ANLPAR (bit 13, register address 05) is set
Auto Configuration Ability
0 = not able to perform auto-negotiation
51
DM9016
3-port switch with Processor Interface
2
Link status
0,RO
1
Jabber detect
0, RO
0
Extended
capability
1,RO/P
1 = able to perform auto-negotiation
Link Status
0 = Link is not established
1 = Valid link is established (for either 10Mbps or 100Mbps
operation)
The link status bit is implemented with a latching function, so that
the occurrence of a link failure condition causes the link status bit to
be cleared and remain cleared until it is read via the management
interface
Jabber Detect
0 = No jabber
1 = Jabber condition detected
This bit is implemented with a latching function. Jabber conditions
will set this bit unless it is cleared by a read to this register through a
management interface or a DM9016 reset. This bit works only in
10Mbps mode
Extended Capability
0 = Basic register capable only
1 = Extended register capable
8.3 PHY ID Identifier Register #1 (PHYID1) – 02H
The PHY Identifier Registers #1 and #2 work together in a single identifier of the DM9016. The Identifier consists
of a concatenation of the Organizationally Unique Identifier (OUI), a vendor's model number, and a model
revision number. DAVICOM Semiconductor's IEEE assigned OUI is 00606E.
Bit
15-0
Bit Name
OUI_MSB
Default
<0181h>
Description
OUI Most Significant Bits
This register stores bit 3 to 18 of the OUI (00606E) to bit 15 to 0 of
this register respectively. The most significant two bits of the OUI
are ignored (the IEEE standard refers to these as bit 1 and 2)
8.4 PHY ID Identifier Register #2 (PHYID2) – 03H
Bit
15-10
Bit Name
OUI_LSB
Default
<101110>,
RO/P
9-4
VNDR_MDL
<001011>,
RO/P
3-0
MDL_REV
<0000>,
RO/P
52
Description
OUI Least Significant Bits
Bit 19 to 24 of the OUI (00606E) are mapped to bit 15 to 10 of this
register respectively
Vendor Model Number
Five bits of vendor model number mapped to bit 9 to 4 (most
significant bit to bit 9)
Model Revision Number
Five bits of vendor model revision number mapped to bit 3 to 0
(most significant bit to bit 4)
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
8.5 Auto-negotiation Advertisement Register (ANAR) – 04H
This register contains the advertised abilities of this DM9016 device as they will be transmitted to its link partner
during Auto-negotiation.
Bit
15
Bit Name
NP
14
ACK
13
RF
12-11
Reserved
10
FCS
9
T4
8
TX_FDX
7
TX_HDX
6
10_FDX
5
10_HDX
4-0
Selector
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Default
0,RO/P
Description
Next page Indication
0 = No next page available
1 = Next page available
The DM9016 has no next page, so this bit is permanently set to 0
0,RO
Acknowledge
0 = Not acknowledged
1 = Link partner ability data reception acknowledged
The DM9016's auto-negotiation state machine will automatically
control this bit in the outgoing FLP bursts and set it at the
appropriate time during the auto-negotiation process. Software
should not attempt to write to this bit.
0, RW
Remote Fault
0 = No fault detected
1 = Local device senses a fault condition
X, RW
Reserved
Write as 0, ignore on read
1, RW
Flow Control Support
0 = Controller chip doesn’t support flow control ability
1 = Controller chip supports flow control ability
0, RO/P
100BASE-T4 Support
0 = 100BASE-T4 is not supported
1 = 100BASE-T4 is supported by the local device
The DM9016 does not support 100BASE-T4 so this bit is
permanently set to 0
1, RW
100BASE-TX Full Duplex Support
0 = 100BASE-TX full duplex is not supported
1 = 100BASE-TX full duplex is supported by the local device
1, RW
100BASE-TX Support
0 = 100BASE-TX half duplex is not supported
1 = 100BASE-TX half duplex is supported by the local device
1, RW
10BASE-T Full Duplex Support
0 = 10BASE-T full duplex is not supported
1 = 10BASE-T full duplex is supported by the local device
1, RW
10BASE-T Support
0 = 10BASE-T half duplex is not supported
1 = 10BASE-T half duplex is supported by the local device
<00001>, RW Protocol Selection Bits
These bits contain the binary encoded protocol selector supported
by this node
<00001> indicates that this device supports IEEE 802.3 CSMA/CD
53
DM9016
3-port switch with Processor Interface
8.6 Auto-negotiation Link Partner Ability Register (ANLPAR) – 05H
This register contains the advertised abilities of the link partner when received during Auto-negotiation.
Bit
15
Bit Name
NP
14
ACK
13
RF
12-11
Reserved
10
FCS
9
T4
8
TX_FDX
7
TX_HDX
6
10_FDX
5
10_HDX
4-0
Selector
54
Default
0, RO
Description
Next Page Indication
0 = Link partner, no next page available
1 = Link partner, next page available
0, RO
Acknowledge
0 = Not acknowledged
1 = Link partner ability data reception acknowledged
The DM9016's auto-negotiation state machine will automatically
control this bit from the incoming FLP bursts. Software should not
attempt to write to this bit
0, RO
Remote Fault
0 = No remote fault indicated by link partner
1 = Remote fault indicated by link partner
0, RO
Reserved
Read as 0, ignore on write
0, RO
Flow Control Support
0 = Controller chip doesn’t support flow control ability by link
partner
1 = Controller chip supports flow control ability by link partner
0, RO
100BASE-T4 Support
0 = 100BASE-T4 is not supported by the link partner
1 = 100BASE-T4 is supported by the link partner
0, RO
100BASE-TX Full Duplex Support
0 = 100BASE-TX full duplex is not supported by the link partner
1 = 100BASE-TX full duplex is supported by the link partner
0, RO
100BASE-TX Support
0 = 100BASE-TX half duplex is not supported by the link partner
1 = 100BASE-TX half duplex is supported by the link partner
0, RO
10BASE-T Full Duplex Support
0 = 10BASE-T full duplex is not supported by the link partner
1 = 10BASE-T full duplex is supported by the link partner
0, RO
10BASE-T Support
0 = 10BASE-T half duplex is not supported by the link partner
1 = 10BASE-T half duplex is supported by the link partner
<00000>, RO Protocol Selection Bits
Link partner’s binary encoded protocol selector
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
8.7 Auto-negotiation Expansion Register (ANER) - 06H
Bit
15-5
Bit Name
Reserved
Default
0, RO
4
PDF
0, RO/LH
3
LP_NP_ABLE
0, RO
2
NP_ABLE
0,RO/P
1
PAGE_RX
0, RO
0
LP_AN_ABLE
0, RO
Description
Reserved
Read as 0, ignore on write
Local Device Parallel Detection Fault
PDF = 1: A fault detected via parallel detection function.
PDF = 0: No fault detected via parallel detection function
Link Partner Next Page Able
LP_NP_ABLE = 1: Link partner, next page available
LP_NP_ABLE = 0: Link partner, no next page
Local Device Next Page Able
NP_ABLE = 1: DM9016, next page available
NP_ABLE = 0: DM9016, no next page
DM9016 does not support this function, so this bit is always 0
New Page Received
A new link code word page received. This bit will be automatically
cleared when the register (register 6) is read by management
Link Partner Auto-negotiation Able
A “1” in this bit indicates that the link partner supports
Auto-negotiation
8.8 DAVICOM Specified Configuration Register (DSCR) – 10H
Bit
Bit Name
Default
Description
15
BP_4B5B
0,RW
Bypass 4B5B Encoding and 5B4B Decoding
0 = Normal 4B5B and 5B4B operation
1 = 4B5B encoder and 5B4B decoder function bypassed
14
BP_SCR
0, RW
Bypass Scrambler/Descrambler Function
0 = Normal scrambler and descrambler operation
1 = Scrambler and descrambler function bypassed
13
BP_ALIGN
0, RW
Bypass Symbol Alignment Function
0 = Normal operation
1 = Receive functions (descrambler, symbol alignment and symbol
decoding functions) bypassed. Transmit functions (symbol
encoder and scrambler) bypassed
12
BP_ADPOK
0, RW
BYPASS ADPOK
Force signal detector (SD) active. This register is for debug only,
not release to customer
0=Normal operation
1=Forced SD is OK,
11
Reserved
RW
Reserved
Force to 0 in application
10
TX
1, RW
100BASE-TX Mode Control
0 = 100BASE-FX operation
1 = 100BASE-TX operation
9
Reserved
0, RO
Reserved
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
55
DM9016
3-port switch with Processor Interface
56
8
7
Reserved
F_LINK_100
0, RW
0, RW
6
Reserved
0, RW
5
4
COL_LED
RPDCTR-EN
0, RW
1, RW
3
SMRST
0, RW
2
MFPSC
1, RW
1
SLEEP
0, RW
0
RLOUT
0, RW
Reserved
Force Good Link in 100Mbps
0 = Normal 100Mbps operation
1 = Force 100Mbps good link status
This bit is useful for diagnostic purposes
Reserved
Force to 0 in application.
COL LED Control (valid in PHY test mode)
Reduced Power Down Control Enable
This bit is used to enable automatic reduced power down
0 = Disable automatic reduced power down
1 = Enable automatic reduced power down
Reset State Machine
When writes 1 to this bit, all state machines of PHY will be reset.
This bit is self-clear after reset is completed
MF Preamble Suppression Control
MII frame preamble suppression control bit
0 = MF preamble suppression bit off
1 = MF preamble suppression bit on
Sleep Mode
Writing a 1 to this bit will cause PHY entering the Sleep mode and
power down all circuit except oscillator and clock generator circuit.
When waking up from Sleep mode (write this bit to 0), the
configuration will go back to the state before sleep; but the state
machine will be reset
Remote Loop out Control
When this bit is set to 1, the received data will loop out to the
transmit channel. This is useful for bit error rate testing
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
8.9 DAVICOM Specified Configuration and Status Register (DSCSR) – 11H
Bit
15
Bit Name
100FDX
Default
1, RO
14
100HDX
1, RO
13
10FDX
1, RO
12
10HDX
1, RO
11
Reserved
0, RO
10-9
8-4
Reserved
PHYADR[4
:0]
0,RW
1, RW
3-0
ANMB[3:0]
0, RO
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Description
100M Full Duplex Operation Mode
After auto-negotiation is completed, results will be written to this bit. If this
bit is 1, it means the operation 1 mode is a 100M full duplex mode. The
software can read bit [15:12] to see which mode is selected after
auto-negotiation. This bit is invalid when it is not in the auto-negotiation
mode
100M Half Duplex Operation Mode
After auto-negotiation is completed, results will be written to this bit. If this
bit is 1, it means the operation 1 mode is a 100M half duplex mode. The
software can read bit [15:12] to see which mode is selected after
auto-negotiation. This bit is invalid when it is not in the auto-negotiation
mode
10M Full Duplex Operation Mode
After auto-negotiation is completed, results will be written to this bit. If this
bit is 1, it means the operation 1 mode is a 10M Full Duplex mode. The
software can read bit [15:12] to see which mode is selected after
auto-negotiation. This bit is invalid when it is not in the auto-negotiation
mode
10M Half Duplex Operation Mode
After auto-negotiation is completed, results will be written to this bit. If this
bit is 1, it means the operation 1 mode is a 10M half duplex mode. The
software can read bit [15:12] to see which mode is selected after
auto-negotiation. This bit is invalid when it is not in the auto-negotiation
mode
Reserved
Read as 0, ignore on write
Reserved
PHY Address Bit 4:0
The first PHY address bit transmitted or received is the MSB of the
address (bit 4). A station management entity connected to multiple PHY
entities must know the appropriate address of each PHY
Auto-negotiation Monitor Bits
These bits are for debug only. The auto-negotiation status will be written
to these bits.
B3 B2 B1
B0
0
0
0
0
In IDLE state
0
0
0
1
Ability match
0
0
1
0
Acknowledge match
0
0
1
1
Acknowledge match fail
0
1
0
0
Consistency match
0
1
0
1
Consistency match fail
0
1
1
0
Parallel detects signal link ready
0
1
1
1
Parallel detects signal link ready fail
1
0
0
0
Auto-negotiation completed successfully
57
DM9016
3-port switch with Processor Interface
8.10 10BASE-T Configuration/Status (10BTCSR) – 12H
Bit
15
Bit Name
Reserved
Default
0, RO
14
LP_EN
1, RW
13
HBE
1,RW
12
SQUELCH
1, RW
11
JABEN
1, RW
10
SERIAL
0, RW
9-1
Reserved
0, RO
0
POLR
0, RO
Description
Reserved
Read as 0, ignore on write
Link Pulse Enable
0 = Link pulses disabled, good link condition forced
1 = Transmission of link pulses enabled
This bit is valid only in 10Mbps operation
Heartbeat Enable
0 = Heartbeat function disabled
1 = Heartbeat function enabled
When the DM9016 is configured for full duplex operation, this bit will
be ignored (the collision/heartbeat function is invalid in full duplex
mode)
Squelch Enable
0 = Low squelch
1 = Normal squelch
Jabber Enable
Enables or disables the Jabber function when the DM9016 is in
10BASE-T full duplex or 10BASE-T transceiver Loopback mode
0 = Jabber function disabled
1 = Jabber function enabled
10M Serial Mode (valid in PHY test mode)
Force to 0, in application.
Reserved
Read as 0, ignore on write
Polarity Reversed
When this bit is set to 1, it indicates that the 10Mbps cable polarity is
reversed. This bit is automatically set and cleared by 10BASE-T
module
8.11 Power Down Control Register (PWDOR) – 13H
Bit
15-9
Description
Reserved
Read as 0, ignore on write
8
PD10DRV
0, RW
Vendor power down control test
7
PD100DL
0, RW
Vendor power down control test
6
PDchip
0, RW
Vendor power down control test
5
PDcrm
0, RW
Vendor power down control test
4
PDaeq
0, RW
Vendor power down control test
3
PDdrv
0, RW
Vendor power down control test
2
PDedi
0, RW
Vendor power down control test
1
PDedo
0, RW
Vendor power down control test
0
PD10
0, RW
Vendor power down control test
* When selected, the power down value is control by Register 0x14H
58
Bit Name
Reserved
Default
0, RO
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
8.12 (Specified config) Register – 14H
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit Name
TSTSE1
TSTSE2
FORCE_TXSD
Description
Vendor test select control
Vendor test select control
Force Signal Detect
0: normal SD signal.
1: force SD signal OK in 100M
FORCE_FEF
0,RW
Vendor test select control
PREAMBLEX
0,RW
Preamble Saving Control
0: when bit 10 is set, the 10M TX preamble count is reduced.
When bit 11 of register 29 is set, 12-bit preamble bit is
reduced; otherwise 22-bit preamble bits is reduced.
1: 10M TX preamble bit count is normal.
TX10M_PWR
1,RW
10M TX Power Saving Control
1: enable 10M TX power saving
0: disable 10M TX power saving
NWAY_PWR
0,RW
N-Way Power Saving Control
1: disable N-Way power saving
0: enable N-Way power saving
Reserved
0, RO
Reserved
Read as 0, ignore on write
MDIX_CNTL
MDI/MDIX,RO The polarity of MDI/MDIX value
0: MDI mode
1: MDIX mode
AutoNeg_dpbk
0,RW
Auto-negotiation Loopback
0: normal.
1: test internal digital auto-negotiation Loopback
Mdix_fix Value
0, RW
MDIX_CNTL force value:
When Mdix_down = 1, MDIX_CNTL value depend on the register
value.
Mdix_down
0,RW
MDIX Down
Manual force MDI/MDIX.
0: Enable HP Auto-MDIX
1: Disable HP Auto-MDIX , MDIX_CNTL value depend on 20.5
MonSel1
0,RW
Vendor monitor select
MonSel0
0,RW
Vendor monitor select
Reserved
0,RW
Reserved
Force to 0, in application.
PD_value
0,RW
Power down control value
Decision the value of each field Register 19.
0: normal
1: power down
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Default
0,RW
0,RW
0,RW
59
DM9016
3-port switch with Processor Interface
8.13 DAVICOM Specified Receive Error Counter Register (RECR) – 16H
Bit
15-0
Bit Name
Rcv_ Err_ Cnt
Default
0, RO
Description
Receive Error Counter
Receive error counter that increments upon detection of RXER.
Clean by read this register.
8.14 DAVICOM Specified Disconnect Counter Register (DISCR) – 17H
Bit
15-8
Bit Name
Reserved
Default
0, RO
7-0
Disconnect
Counter
0, RO
Description
Reserved
Disconnect Counter that increment upon detection of
disconnection. Clean by read this register.
8.15 Power Saving Control Register (PSCR) – 1DH
Bit
Bit Name
Default
Description
15-12
RESERVED
0,RO
RESERVED
11
PREAMBLEX
0,RW
Preamble Saving Control
when both bit 10and 11 of register 0x14H are set, the 10M TX
preamble count is reduced.
1: 12-bit preamble bit is reduced.
0: 22-bit preamble bits is reduced.
10
AMPLITUDE
0,RW
10M TX Amplitude Control Disabled
1: when cable is unconnected with link partner, the TX amplitude is
reduced for power saving.
0: disable TX amplitude reduce function
9
TX_PWR
0.RW
TX Power Saving Control Disabled
1: when cable is unconnected with link partner, the driving current
of transmit is reduced for power saving.
0: disable TX driving power saving function
8-0
RESERVED
0,RO
RESERVED
8.16 DAVICOM indirect DATA Register (DATA) – 1EH
Bit
Bit Name
Default
Description
15-0
DATA
0, RW
In-direct DATA register
When write, data to register that addressing by ADDR
When read, data from register that addressing by ADDR
8.17 DAVICOM indirect ADDR Register (ADDR) – 1FH
Bit
Bit Name
Default
15-8
Reserved
0, RO
Reserved
3-0
60
ADDR
0, RW
Description
In-direct ADDR register
1: addressing to power saving control register (same as REG
1DH)
2: reserved
3: reserved
4: addressing to TX amplitude control register
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
8.18 DAVICOM indirect TX Amplitude Control Register (TX_OUT_CNTL) – indirect-04H
Bit
Bit Name
Default
Description
15-6
Reserved
0, RO
Reserved
5-0
TX
AMPLITUDE
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
0, RW
TX amplitude control
To tune the amplitude of TX +/-.
61
DM9016
3-port switch with Processor Interface
9. Functional Description
9.1 Processor bus and memory management function:
9.1.1 Processor Interface
In the general processor mode, the chip selection
is just coming from pin 2 (CS#). There are only two
addressing ports through the access of the host
interface.
One port is the INDEX port and the other is the
DATA port. The INDEX port is decoded by the CMD
pin=0 and the DATA by the CMD pin=1. The contents
of the INDEX port are the register address of the
DATA port. Before the access of any register, the
address of the register must be saved in the INDEX
port before.
9.1.2 Direct Memory Access Control
The DM9016 provides DMA capability to simplify
the access of the internal memory. After the setting of
the starting address of the internal memory and then
issuing a dummy read/write command to load the
current data to internal data buffer, the desired
location of the internal memory can be accessed by
the read/write command registers. The memory’s
address will be increased with the size equal to the
current operation mode (i.e. the byte, word or
double-word mode) and the data of the next location
will be loaded to internal data buffer automatically. It
is noted that the data of the first access (the dummy
read/write command) in a sequential burst should be
ignored because that the data was the contents of the
last read/write command.
There are two configured types of internal
memory which are controlled by bit 7 of IMR. When
the bit 7 of IMR is set, the internal memory is used for
transmit and receive buffers. The transmit buffer
occupies 7.5K bytes in 3-port mode and 8K bytes in
2-port mode. And the receive buffer occupies 7.5K
bytes in 3-port mode and 7.75K bytes in 2-port mode.
Both the transmit and receive buffer address need
not to be programmed instead that they are managed
by the DM9016 automatically. In transmit function,
after power on reset or each time after the transmit
command is issued (bit 0 of TCR is set), the next
starting transmit buffer address is loaded. In receive
function, the 7.5K-byte (or 7.75K-byte) receive buffer
can be treated as a continued logic memory space.
The memory address will wrap to address 0 if the end
62
of address is reached.
When the bit 7 of IMR is cleared, there is a 64Kbyte memory space in the DM9016 can be accessed.
This configured type of internal memory is used for
testing only. The memory write address (register
FAh/FBh) and the memory read address (register
F4h/F5h) represent the physical memory address of
the DM9016 internal memory. It is noted that after the
memory had been written by memory write command,
the switch reset command (bit 6 of register 52h)
should be set before normal switch function operation,
since the controlled data in internal memory may be
corrupted.
9.1.3 Packet Transmission
There are two packets, sequentially named as
index I and index II, can be stored in the TX SRAM at
the same time. The index register 02h controls the
insertion of CRC.
The start address of transmission is 00h and the
current packet is index I after software or hardware
reset. Firstly write data to the TX SRAM using the
DMA port and then write the byte count to byte count
register at index register 0fch and 0fdh. Set the bit 1
of control register. The DM9016 starts to transmit the
index I packet. Before the transmission of the index I
packet ends, the data of the next (index II) packet can
be moved to TX SRAM. After the index I packet ends
the transmission, write the byte count data of the
index II to BYTE_COUNT register and then set the bit
1 of control register to transmit the index II packet.
The following packets, named index I, II, I, II… use
the same way to be transmitted.
9.1.4 Packet Reception
The RX SRAM is a ring data structure. Each
packet has a 4-byte header followed with the data of
the reception packet which CRC field is included. The
format of the 4-byte header is 01h, status,
BYTE_COUNT low, and BYTE_COUNT high. It is
noted that the start address of each packet is in the
proper address boundary which depends on the
operation mode (byte, word, or double-word mode).
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
9.2 Switch function:
9.2.1 Address Learning
The DM9016 stores MAC addresses, port
number and time stamp information in the
Hash-based Address Table. The table can learn up to
1K unicast address entries. The DM9016 provides
two methods to learn address in the table,
self-learning and manual learning.
Self-learning
The self-learning mechanism means the DM9016
learn the MAC addresses of incoming packets in real
time without CPU’s assistance.
The switch engine creates a new entry if incoming
packet’s Source Address (SA) does not exist and the
packet is valid (error-free). If SA was found and
incoming port mismatch with port number in table,
update the entry with SA and incoming port number.
Those entries will be created, updated or aged
dynamically.
Besides, the DM9016 has an option to disable
address learning for individual port. This feature can
be set by bit 0 of register 65h.
Manual Learning
The DM9016 also provides manual learning
mechanism with CPU’s assistance. The CPU can
create, update or delete entry for flexible
management. In addition to above, the entry can be
set as static one that will not be aged-out forever.
9.2.2 Address Aging
The time stamp information of address table is
used in the aging process. The switch engine
updates time stamp whenever the corresponding SA
receives. The switch engine would delete the entry if
its time stamp is not updated for a period of time.
The period can be programmed or disabled through
bit 0 & 1 of register 52h.
9.2.3 Packet Forwarding
The DM9016 forwards the incoming packet
according to following decision:
(1). If DA is Multicast/Broadcast, the packet is
forwarded to all ports, except to the port on which the
packet was received.
(2). Switch engine would look up address table
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
based on DA when incoming packets is UNICAST. If
the DA was not found in address table, the packet is
treated as a multicast packet and forward to other
ports. If the DA was found and its destination port
number is different to source port number, the packet
is forward to destination port.
(3). Switch engine also look up VLAN, Port
Monitor setting and other forwarding constraints for
the forwarding decision, more detail will discuss in
later sections.
The DM9016 will filter incoming packets under
following conditions:
(1). Error packets, including CRC errors,
alignment errors, illegal size errors.
(2). PAUSE packets.
(3). If incoming packet is UNICAST and its
destination port number is equal to source port
number.
9.2.4 Inter-Packet Gap (IPG)
IPG is the idle time between any two valid packets
at the same port. The typical number is 96 bits time.
In other word, the value is 9.6u sec for 10Mbps and
960n sec for 100Mbps.
9.2.5 Back-off Algorithm
The DM9016 implements the binary exponential
back-off algorithm in half-duplex mode compliant to
IEEE standard 802.3.
9.2.6 Late Collision
Late Collision is a type of collision. If a collision
error occurs after the first 512 bit times of data are
transmitted, the packet is dropped.
9.2.7 Full Duplex Flow Control
The DM9016 supports IEEE standard 802.3x flow
control frames on both transmit and receive sides.
On the receive side, The DM9016 will defer
transmitting next normal frames, if it receives a pause
frame from link partner.
On the transmit side, The DM9016 issues pause
frame with maximum pause time when internal
resources such as received buffers, transmit queue
and transmit descriptor ring are unavailable. Once
63
DM9016
3-port switch with Processor Interface
resources are available, The DM9016 sends out a
pause frame with zero pause time allows traffic to
resume immediately.
9.2.8 Half Duplex Flow Control
The DM9016 supports half-duplex backpressure.
The inducement is the same as full duplex mode.
When flow control is required, the DM9016 sends jam
pattern, thus forcing a collision.
The flow control ability can be set in bit 4 of
register 61h.
9.2.9 Partition Mode
The DM9016 provides a partition mode for each
port, see bit 6 of register 61h. The port enters
partition mode when more than 64 consecutive
collisions are occurred. In partition mode the port
continuous to transmit but it will not receive. The port
returned to normal operation mode when a good
packet is seen on the wire. The detail description of
partition mode represent following:
(1). Entering Partition State
A port will enter the Partition State when either of
the following conditions occurs:
z The port detects a collision on every one of 64
consecutive re-transmit attempts to the same packet.
z The port detects a single collision which occurs
for more than 512 bit times.
z Transmit defer timer time out, which indicates
the transmitting packet is deferred to long.
(2). While in Partition state:
The port will continue to transmit its pending
packet, regardless of the collision detection, and will
not allow the usual Back-off Algorithm. Additional
packets pending for transmission will be transmitted,
while ignoring the internal collision indication. This
frees up the ports transmit buffers which would
otherwise be filled up at the expense of other ports
buffers. The assumption is that the partition is
signifying a system failure situation (bad
connection/cable/station), thus dropping packets is a
small price to pay vs. the cost of halting the switch
due to a buffer full condition.
(3). Exiting from Partition State
The Port exits from Partition State, following the
end of a successful packet transmission.
A
successful packet transmission is defined as no
64
collisions were detected on the first 512 bits of the
transmission.
9.2.10 Broadcast Storm Filtering
The DM9016 has an option to limit the traffic of
broadcast or multicast packets, to protect the switch
from lower bandwidth availability.
There are two type of broadcast storm control,
one is throttling broadcast packet only, the other
includes multicast. This feature can be set through bit
1 of register 61h.
The broadcast storm threshold can be
programmed by EEPROM or register 67h, the default
setting is no broadcast storm protecting.
9.2.11 Bandwidth Control
The DM9016 supports two type of bandwidth
control for each port. One is the ingress and egress
bandwidth rate can be control separately, the other is
combined together, this function can be set through
bit 3 of register 61h. The bandwidth control is
disabled by default.
For separated bandwidth control mode, the
threshold rate is defined in register 66h. For
combined mode, it is defined in register 67h.
The behavior of bandwidth control as below:
(1).For the ingress control, if flow control function
is enabled, Pause or Jam packet will be transmitted.
The ingress packets will be dropped if flow control is
disabled.
(2).For the egress control, the egress port will not
transmit any packets. On the other hand, the ingress
bandwidth of source port will be throttled that prevent
packets from forwarding.
(3).In combined mode, if the sum of ingress and
egress bandwidth over threshold, the bandwidth will
be throttled.
9.2.12 Port Monitoring Support
The DM9016 supports “Port Monitoring” function
on per port base, detail as below:
(1). Sniffer Port and Monitor Port
There is only one port can be selected as “sniffer
port” by register 52h, multiple ports can be set as
“receive monitor port” or “transmit monitor port” in
per-port register 65h.
(2).Receive monitor
All packets received on the “receive monitor port”
are send a copy to “sniffer port”. For example, port 0
is set as “receive monitor port” and port 3 is selected
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
as “sniffer port”. If a packet is received form port 0
and predestined to port 1 after forwarding decision,
the DM9016 will forward it to port 1 and port 3 in the
end.
(3).Transmit monitor
All packets transmitted on the “transmit monitor
port” are send a copy to “sniffer port”. For example,
port 1 is set as “transmit monitor port” and port 3 is
selected as “sniffer port”. If a packet is received from
port 0 and predestined to port 1 after forwarding
decision, the DM9016 will forward it to port 1 and port
3 in the end.
(4).Exception
The DM9016 has an optional setting that
broadcast/multicast packets are not monitored (see
bit 4 of register 65h). It’s useful to avoid unnecessary
bandwidth.
9.2.13 VLAN Support
9.2.13.1 Port-Based VLAN
The DM9016 supports port-based VLAN as
default, up to 16 groups. Each port has a default VID
called PVID (Port VID, see register 6Fh). The
DM9016 used LSB 4-bytes of PVID as index and
Dest.
Src.
Dest.
Src.
mapped to register B0h~BFh, to define the VLAN
groups.
For instance, we intend to partition DM9016’s
ports into three groups. Port 0 and port 1 in group A,
port 1 and port 2 in group B, finally, port 2 and port 3
in group C. In this case, the setting as below:
(1). Set PVID of Port 0 to 0x01h.
(2). Set PVID of Port 1 to 0x02h.
(3). Set PVID of Port 2 to 0x03h.
(4). Set PVID of Port 3 to 0x04h.
(5). Set register B1h to 0x02h.
(6). Set register B2h to 0x05h.
(7). Set register B3h to 0x0Ah.
(8). Set register B4h to 0x04h.
9.2.13.2 802.1Q-Based VLAN
Regarding IEEE 802.1Q standard, Tag-based
VLAN uses an extra tag to identify the VLAN
membership of a frame across VLAN-aware
switch/router. A tagged frame is four bytes longer
than an untagged frame and contains two bytes of
TPID (Tag Protocol Identifier) and two bytes of TCI
(Tag Control Information).
Length/Type
TPID
TCI
Data
Length / Type
Standard frame
Data
Tagged frame
0x8100
2 bytes
Priority
CFI
VID
12 bits
3 bits
1 bits
destination port of received packet is not same VLAN
The DM9016 also supports 16 802.1Q-based
group with received port, it will be discarded.
VLAN groups, as specified in bit 1 of register 53h. It’s
obvious that the tagged packets can be assigned to
several different VLANs which are determined
according to the VID inside the VLAN Tag. Therefore,
the operation is similar to port-based VLAN. The
DM9016 used LSB 4-bytes VID of received packet
with VLAN tag and VLAN Group Mapping Register
(B0h~BFh) to configure the VLAN partition. If the
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
65
DM9016
3-port switch with Processor Interface
9.2.13.3 Tag/Untag
User can define each port as Tag port or Un-tag
port by bit 7 of register 6Dh in 802.1Q-based VLAN
mode. The operation of Tag and Un-tag can explain
as below conditions:
(1). Receive untagged packet and forward to
Un-tag port.
Received packet will forward to destination port
without modification.
(2). Receive tagged packet and forward to Un-tag
port.
The DM9016 will remove the tag from the packet
and recalculate CRC before sending it out.
(3). Receive untagged packet and forward to Tag
port.
The DM9016 will insert the PVID tag when an
untagged packet enters the port, and recalculate
CRC before delivering it.
(4). Receive tagged packet and forward to Tag
port.
Received packet will forward to destination port
without modification.
9.2.14 Priority Support
The DM9016 supports Quality of Service (QoS)
mechanism for multimedia communication such as
VoIP and video conferencing.
The DM9016 provides three priority classifications:
Port-based, 802.1p-based and DiffServ-based priority.
See next section for more detail. The DM9016 offers
four level queues for transmit on per-port based.
The DM9016 provides two packet scheduling
algorithms: Weighted Round Robin Queuing (WRR)
and Strict Priority Queuing (SPQ). Weighted Round
Robin Queuing (WRR) based on their priority and
queue weight. Queues with larger weights get more
service than smaller. This mechanism can get highly
efficient bandwidth and smooth the traffic. Strict
Priority Queuing (SPQ) based on priority only. The
Packet on the highest priority queue is transmitted
first. The next highest-priority queue is work until last
queue empties, and so on. This feature can be set in
bit 5 of register 6Dh.
9.2.14.1 Port-Based Priority
Port based priority is the simplest scheme and as
default. Each port has a 2-bit priority value as index
for splitting ingress packets to the corresponding
transmit queue. This value can be set in bit 0 and 1 of
register 6Dh.
66
9.2.14.2 802.1p-Based Priority
802.1p priority can be disabled by bit 2 of register
6Dh, it is enabled by default.
The DM9016 extracts 3-bit priority field from
received packet with 802.1p VLAN tag, and maps this
field against VLAN Priority Map Registers (D0h~D1h)
to determine which transmit queue is designated. The
VLAN Priority Map is programmable.
9.2.14.3 DiffServ-Based Priority
DiffServ based priority uses the most significant
6-bit of the ToS field in standard IPv4 header, and
maps this field against ToS Priority Map Registers
(C0h~CFh) to determine which transmit queue is
designated. The ToS Priority Map is programmable
too. In addition, User can only refer to most
significant 3-bit of the ToS field optionally, see bit 7 of
register 53h.
9.2.15 Address Table Accessing
Type of Address Table
There are three types of address table in the DM9016.
The description is represented below:
(1). Unicast Address Table
This table is used for destination MAC address
lookup and source MAC address learning. The table
can have up to 1024 entries. If the table is full, the
latest one will kick out the eldest one. The
programming method can refer to next section.
(2). Multicast Address Table
This table stores multicast addresses up to 256
entries and can be maintained by host CPU for
custom filtering and forwarding multicast packets. If
the table is full, the latest one will kick out the eldest
one. All of entries in multicast address table are static
one. In addition to host CPU, multicast address table
can be manipulated by internal switch engine, if
hardware-based IGMP Snooping function is enabled.
(3). IGMP Membership Table
This table is used to establish IPv4 multicast
forwarding
rule
under
IGMP
protocol
if
hardware-based IGMP Snooping function is enabled.
It is automatic maintained by internal engine
according to snooping IGMP control packets, and can
only support to read out by the host CPU. The
maximum of entries of table is 16. If the table is full,
never join anymore.
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
9.2.16 Access Rules of Address Table
The DM9016 The procedure and flow chart of Entry
Write is described as following:
Entry Write
(1). Check the busy bit of Ethernet Address
Control/Status Register 1 (Reg70H.0) to seek
the availability of access engine. Waiting until
engine is available and to keep on following.
(2). Write the MAC address to the Ethernet Address
Data Registers (Reg71H~76H).
(3). Write the Port Number (if target is unicast
address table) or Port Map (if target is multicast
address table) to Ethernet Address Data
Register (Reg77H.[3:0]).
(1). Check the busy bit of Ethernet Address
Control/Status Register 1 (Reg70H.0) to seek
the availability of access engine. Waiting until
engine is available and to keep on following.
(2). Write the MAC address to the Ethernet Address
Data Register (Reg71H~76H).
(3). Write the “SEARCH” command and assign the
target table to Ethernet Address Control/Status
Register 1 (Reg70H.[4:1]) to start the operation.
(4). Check the busy bit again, wait for available.
(5). Read the command status from Ethernet
Address
Control/Status
Register
1
(Reg70H.[6:5]).
(6). Read the Port Number or Port Map from
Ethernet Address Control/Status Register 2
(Reg77H.[3:0])
(4). If need, write the entry’s attributes that includes
both static and overriding to Ethernet Address
Control/Status Register 1 (Reg77H).
(7). If need, read the entry sequence (the sequence
number of entry in address table) from Ethernet
Address Data Register (Reg71H~72H).
(5). Write the “WRITE” command and assign the
target table to Ethernet Address Control/Status
Register 1 (Reg70H.[4:1]) to start the operation.
(8). If need, read the entry’s attributes that include
static (unicast address table only), IGMP
signature (multicast address table only) and
overriding from Ethernet Address Control/Status
Register 2 (77H.[6:4]).
(6). Check the busy bit again, wait for available.
(7). Read the command status from Ethernet
Address
Control/Status
Register
1
(Reg70H.[6:5]).
Entry Delete
(1). Check the busy bit of Ethernet Address
Control/Status Register 1 (Reg70H.0) to seek
the availability of access engine. Waiting until
engine is available and to keep on following.
(2). Write the MAC address to the Ethernet Address
Data Register (Reg71H~76H).
Entry Read
(1). Check the busy bit of Ethernet Address
Control/Status Register 1 (Reg70H.0) to seek
the availability of access engine. Waiting until
engine is available and to keep on following.
(2). Write the entry sequence to the Ethernet
Address Data Register (Reg71H~76H).
(3). Write the “READ” command and assign the
target table to Ethernet Address Control/Status
Register 1 (Reg70H.[4:1]) to start the operation.
(3). Write the “DELETE” command and assign the
target table to Ethernet Address Control/Status
Register 1 (Reg70H.[4:1]) to start the operation.
(4). Check the busy bit again, wait for available.
(4). Check the busy bit again, wait for available.
(6). Read the Port Number or Port Map from
Ethernet Address Control/Status Register 2
(Reg77H.[3:0])
(5). Read the command status from Ethernet
Address
Control/Status
Register
1
(Reg70H.[6:5]).
Entry Search
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
(5). Read the command status from Ethernet
Address Control/Status Register 1 (70H.[6:5]).
(7). If target is unicast or multicast address table,
read the entry’s MAC address from Ethernet
Address Data Register (Reg71H~76H). If target
is IGMP membership table, read the entry
67
DM9016
3-port switch with Processor Interface
sequence (the sequence number of entry in
address table) from Ethernet Address Data
Register (Reg71H~72H).
(8). If need, read the entry’s attributes that include
static, IGMP signature and overriding from
Ethernet Address Control/Status Register 2
(Reg77H.[6:4]).
Entry Write
Entry Delete
Start
Start
Busy
Reg70h.0
1
Busy
Reg70h.0
0
1
0
Set MAC Address (Reg71h~76h)
Set Port Number/Mapping (Reg77h)
Set static/dynamic* (Reg77h)
Set overriding* (Reg77h)
Set MAC Address
(Reg71h~76h)
Issue Command (Reg70h)
Issue Command (Reg70h)
Busy
Reg70h.0
Busy
Reg70h.0
0
1
1
0
Check Status
(Reg70h.[6:5])
Check Status
(Reg70h.[6:5])
Finish
Finish
68
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
Entry Read
Entry Search
Start
Start
Busy
Reg70h.0
1
Busy
Reg70h.0
1
0
0
Set Entry Sequence
(Reg71h~72h)
Set MAC Address
(Reg71h~76h)
Issue Command (Reg70h)
Issue Command (Reg70h)
Busy
Reg70h.0
1
0
Check Status (Reg70h.[6:5])
Read Port Number/Mapping (Reg77h)
Read Entry Sequence* (Reg71-72h)
Read Attribute* (Reg77h)
Busy
Reg70h.0
1
0
Check Status (Reg70h.[6:5])
Read Port Number/Mapping (Reg77h)
Read MAC Address (Reg71-76h)
Read Entry Sequence* (Reg71-72h)
Read Attribute* (Reg77h)
Finish
Finish
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
69
DM9016
3-port switch with Processor Interface
9.2.17 IGMP Snooping
The Internet Group Management Protocol (IGMP) is
a communications protocol used to manage the
membership of Internet Protocol multicast groups.
IGMP is used by IP hosts and adjacent multicast
routers to establish multicast group memberships.
There are three versions of IGMP, as defined by
"Request for Comments" (RFC) documents of the
Internet Engineering Task Force (IETF). IGMP v1 is
defined by RFC 1112, IGMP v2 is defined by RFC
2236 and IGMP v3 is defined by RFC 3376.
IGMP snooping is a feature that allows the switch to
"listen in" on the IGMP protocol conversation
between hosts and routers.
The IGMP snooping switch hears an IGMP report
from a host with a given multicast group address. It
adds the host's port number to the multicast list for
that group, and when the switch hears an IGMP
Leave, it removes the host's port from the table entry.
Finally, switch will only forward multicast traffic to the
hosts interested in that traffic. Therefore, this function
can effectively reduce multicast traffic.
Hardware-based IGMP Snooping
The DM9016 supports IGMP v1/v2 snooping and the
maximal group is 16 without any software effort.
The DM9016 automatically manipulates and updates
IGMP membership table and Multicast table
according to IGMP control packets, such as
membership report and leave.
If IGMP membership table is full, the later incoming
IGMP Membership Report (Join) packet will be
ignored and the group address won’t be registered
into multicast address table. After that, the
unregistered IP multicast packets (the destination
MAC address can not be found in the multicast
address table) will be treated as normal multicast
packets by default. The additional forwarding control
method can see the register Reg78H.[6:5].
The DM9016 supports router ports auto-detect and
auto-aging mechanism. The port which receives
IGMP Query packets will be treated as router port by
default. The router port also can be define as static
one by user (see Reg78H.4) and the port map of the
router port can be programmed at Reg79H.[2:0].
Keep in mind that the uP port (port 3) is never treated
70
as router port. The DM9016 leaves the router port if
the time (Router Present Timeout, 400sec by default)
is expired that the port never receives IGMP Query
during this period.
If receiving V1REPORT or V2REPORT (group join),
DM9016 creates new or updates the entry. If
receiving LEAVE, DM9016 deletes the entry directly
when Fast Leave is enabled, or waiting until timeout.
DM9016 removes the entry that was never updated
after the timer of host timeout (Group Membership
Interval) is expired. This timer is programmable in
DM9016 and defined by RFC 2236 as ((the
Robustness Variable) times (the Query Interval)) plus
(one Query Response Interval). The setting of the
Robustness Variable and the Query Interval can see
Reg7AH and Reg7BH.
9.2.18 Port Security
DM9016 supports three types of port security function
on each port, see the Port Security & STP Register
(Reg6CH.[1:0]).
(1). First Lock:
The DM9016 locks the source MAC address of first
received packet on the port and the disables the
learning function in this mode.
After that, on detecting incoming packet, the DM916
compares source MAC address of incoming with the
locked one. The DM9016 forwards the packet if
match, or drops by default.
If port’s link status is changed, the first received
packet would be locked again after link on. It’s
noticeable that the previous one was kept in address
table until aging out or removed by user.
(2). First Link Lock:
The lock scheme is same as first lock except that
don’t lock again when link status is changed.
(3). Assign Lock:
The DM9016 allows user to assign the locked entries
by programming instead of dynamic learning. The
port’s learning function is disabled in this mode.
9.2.19 IPv6 MLD Snooping
The DM9016 forwards the IPv6 Multicast Listener Discovery
(MLD) packets to the processor port when MLD Snooping is
enabled and the MLD packets meet following scenario:
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
z
IPv6 Multicast packets.
z
The Hop Limit in IPv6 header is 1.
z
Setting: Reg6CH[5:4] = 2’b01
z
The Next Header in IPv6 header is 0x3A (ICMPv6) or
0x00 (and next header of hop-by-hop option header is
0x3A).
z
Description: The port will neither receive
nor transmit any packets. Learning is
disabled.
z
The Type in ICMP header is 0x82 (Multicast Listener
Query), 0x83 (Multicast Listener Report) or 0x84
(Multicast Listener Done).
z
Software Action: None.
(1). Disable State:
9.2.20 Spanning Tree Protocol Support
The DM9016 supports Spanning Tree Protocol and
provides four types of port state, Forwarding, Disable,
Learning and Blocking/Listening, see the Port
Security & STP Register (Reg6CH.[1:0]). This
function
needs
the
cooperation
n with external CPU. The following figure is the port
state diagram of Spanning Tree Protocol.
(2). Blocking State:
z
Setting: Reg6CH[5:4] = 2’b11
z
Description: Only the BPDUs or
overriding packet will be received and
transmitted. Leaning is disabled.
z
Software Action: In order to establish
spanning tree, the receiving BPDUs will be
forward to processor port but the
processor should not send BPDUs to the
port in this state.
(3). Listening State:
Power-on
Initialization
z
Setting: Reg6CH[5:4] = 2’b11
z
Description: Only the BPDUs and
overriding packet will be received and
transmitted. Leaning is disabled.
z
Software Action: The receiving BPDUs
will be forward to processor port and the
processor can send BPDUs to the port in
this state.
Blocking
State
(4). Learning State:
Listening
State
Learning
State
Disabled
State
z
Setting: Reg6CH[5:4] = 2’b10
z
Description: Only the BPDUs and
overriding packet will be received and
transmitted. Leaning is enabled.
z
Software Action: The receiving BPDUs
will be forward to processor port and the
processor can send BPDUs to the port in
this state.
(5). Forwarding State:
Forwarding
State
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
z
Setting: Reg6CH[5:4] = 2’b00
z
Description: The port participates in
frame relay, learning, and STA calculation.
z
Software Action: The receiving BPDUs
will be forward to processor port and the
processor can send BPDUs to the port in
this state.
71
DM9016
3-port switch with Processor Interface
9.3 MII Interface
9.3.1 MII data interface
The DM9016 port 2 provides a Media Independent
Interface (MII) as defined in the IEEE 802.3u
standard (Clause 22).
The MII consists of a nibble wide receive data bus,
a nibble wide transmit data bus, and control signals to
facilitate data transfers between the DM9016 port 2
and external device (a PHY or a MAC in reverse MII).
• TXD2 (transmit data) is a nibble (4 bits) of
data that are driven by the DM9016 synchronously
with respect to TXC2. For each TXC2 period, which
TXE2 is asserted, TXD2 (3:0) are accepted for
transmission by the external device.
• TXC2 (transmit clock) from the external
device is a continuous clock that provides the timing
reference for the transfer of the TXE2, TXD2. The
DM9016 can drive 25MHz clock if it is configured to
reversed MII mode.
• TXE2 (transmit enable) from the DM9016 port
2 MAC indicates that nibbles are being presented on
the MII for transmission to the external device.
• RXD2 (receive data) is a nibble (4 bits) of data
that are sampled by the DM9016 port 2 MAC
synchronously with respect to RXC2. For each RXC2
period which RXDV2 is asserted, RXD2 (3:0) are
transferred from the external device to the DM9016
port 2 MAC reconciliation sub layer.
• RXC2 (receive clock) from external device to
the DM9016 port 2 MAC reconciliation sub layer is a
continuous clock that provides the timing reference
for the transfer of the RXDV2, RXD2, and RXER2
signals.
• RXDV2 (receive data valid) input from the
external device to indicates that the external device is
presenting recovered and decoded nibbles to the
DM9016 port 2 MAC reconciliation sub layer. To
interpret a receive frame correctly by the
reconciliation sub layer, RXDV2 must encompass the
frame, starting no later than the Start-of-Frame
delimiter and excluding any End-Stream delimiter.
• RXER2 (receive error) input from the external
device is synchronously with respect to RXC2.
RXER2 will be asserted for 1 or more clock periods to
indicate to the reconciliation sub layer that an error
was detected somewhere in the frame being
72
transmitted from the external device to the DM9016
port 2 MAC.
• CRS2 (carrier sense) is asserted by the
external device when either the transmit or receive
medium is non-idle, and de-asserted by the external
device when the transmit and receive medium are
idle. The CRS2 can also in output mode when the
DM9016 port 2 is configured to reversed MII mode.
• COL2 (collision detection) is asserted by the
external device, when both the transmit and receive
medium is non-idle, and de-asserted by the external
device when the either transmit or receive medium
are idle. The COL2 can also in output mode when the
DM9016 port 2 is configured to reversed MII mode.
9.3.2 MII Serial Management
The MII serial management interface consists of a
data interface, basic register set in DM9016 port 0
and 1, and a serial management interface to the
register set. Through this interface it is possible to
control and configure multiple PHY devices, include
internal two ports, get status and error information,
and determine the type and capabilities of the
attached PHY device(s). The DM9016 default is
polling 3 ports basic registers 0, 1, 4, and 5 to get the
link, duplex, and speed status automatically.
Alternatively, the DM9016 can be programmed to
read or write any registers of 3 ports by section
6.8~11 CSR B, C, D, and E.
The DM9016 management functions correspond
to MII specification for IEEE 802.3u-1995 (Clause 22)
for registers 0 through 6 with vendor-specific registers
16,17, 18, 21, 22, 23 and 24~27.
In read/write operation, the management data
frame is 64-bits long and starts with 32 contiguous
logic one bits (preamble) synchronization clock cycles
on MDC. The Start of Frame Delimiter (SFD) is
indicated by a <01> pattern followed by the operation
code (OP) :< 10> indicates Read operation and <01>
indicates Write operation. For read operation, a 2-bit
turnaround (TA) filing between Register Address field
and Data field is provided for MDIO to avoid
contention. Following the turnaround time, 16-bit data
is read from or written onto management registers.
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
9.3.3 Serial Management Interface
The serial control interface uses a simple
two-wired serial interface to obtain and control the
status of the physical layer through the MII interface.
The serial control interface consists of MDC
(Management Data Clock), and MDI/O (Management
Data Input/Output) signals.
The MDIO pin is bi-directional and may be shared
by up to 32 devices.
9.3.4 Management Interface - Read Frame Structure
MDC
MDIO Read
32 "1"s
Idle
0
Preamble
1
SFD
1
0
A4
Op Code
A3
A0
PHY Address
R4
R3
R0
Register Address
0
Z
D15
//
D14
Turn Around
//
D1
D0
Data
Read
Write
Idle
9.3.5 Management Interface - Write Frame Structure
MDC
MDIO Write
32 "1"s
Idle
Preamble
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
0
1
SFD
0
1
Op Code
A4
A3
PHY Address
A0
R4
R3
R0
Register Address
Write
1
0
Turn Around
D15
D14
Data
D1
D0
Idle
73
DM9016
3-port switch with Processor Interface
9.4 Internal PHY functions
9.4.1 100Base-TX Operation
The transmitter section contains the following
functional blocks:
- 4B5B Encoder
- Scrambler
- Parallel to Serial Converter
- NRZ to NRZI Converter
- NRZI to MLT-3
- MLT-3 Driver
By scrambling the data, the total energy presented to
the cable is randomly distributed over a wide
frequency range. Without the scrambler, energy
levels on the cable could peak beyond FCC
limitations at frequencies related to the repeated 5B
sequences, like the continuous transmission of IDLE
symbols. The scrambler output is combined with the
NRZ 5B data from the code-group encoder via an
XOR logic function. The result is a scrambled data
stream with sufficient randomization to decrease
radiated emissions at critical frequencies.
9.4.1.3 Parallel to Serial Converter
9.4.1.1 4B5B Encoder
The 4B5B encoder converts 4-bit (4B) nibble data
generated by the MAC Reconciliation Layer into a
5-bit (5B) code group for transmission, see reference
Table 1. This conversion is required for control and
packet data to be combined in code groups. The
4B5B encoder substitutes the first 8 bits of the MAC
preamble with a J/K code-group pair (11000 10001)
upon transmit. The 4B5B encoder continues to
replace subsequent 4B preamble and data nibbles
with corresponding 5B code-groups. At the end of the
transmit packet, upon the deassertion of the Transmit
Enable signal from the MAC Reconciliation layer, the
4B5B encoder injects the T/R code-group pair (01101
00111) indicating the end of frame. After the T/R
code-group pair, the 4B5B encoder continuously
injects IDLEs into the transmit data stream until
Transmit Enable is asserted and the next transmit
packet is detected.
9.4.1.2 Scrambler
The scrambler is required to control the radiated
emissions (EMI) by spreading the transmit energy
across the frequency spectrum at the media
connector and on the twisted pair cable in
100Base-TX operation.
74
The Parallel to Serial Converter receives parallel 5B
scrambled data from the scrambler, and serializes it
(converts it from a parallel to a serial data stream).
The serialized data stream is then presented to the
NRZ to NRZI encoder block
9.4.1.4 NRZ to NRZI Encoder
After the transmit data stream has been scrambled
and serialized, the data must be NRZI encoded for
compatibility with the TP-PMD standard, for 100Base
-TX transmission over Category-5 unshielded twisted
pair cable.
9.4.1.5 MLT-3 Converter
The MLT-3 conversion is accomplished by converting
the data stream output, from the NRZI encoder into
two binary data streams, with alternately phased logic
one event.
9.4.1.6 MLT-3 Driver
The two binary data streams created at the MLT-3
converter are fed to the twisted pair output driver,
which converts these streams to current sources and
alternately drives either side of the transmit
transformer’s primary winding, resulting in a minimal
current MLT-3 signal.
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
9.4.1.7 4B5B Code Group
Symbol
Meaning
Data 0
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 8
Data 9
Data A
Data B
Data C
Data D
Data E
Data F
4B code
3210
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
5B Code
43210
11110
01001
10100
10101
01010
01011
01110
01111
10010
10011
10110
10111
11010
11011
11100
11101
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
I
J
K
T
R
H
Idle
SFD (1)
SFD (2)
ESD (1)
ESD (2)
Error
undefined
0101
0101
undefined
undefined
undefined
11111
11000
10001
01101
00111
00100
V
V
V
V
V
V
V
V
V
V
Invalid
Invalid
Invalid
Invalid
Invalid
Invalid
Invalid
Invalid
Invalid
Invalid
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
00000
00001
00010
00011
00101
00110
01000
01100
10000
11001
Table 1
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
75
DM9016
3-port switch with Processor Interface
9.4.2 100Base-TX Receiver
The 100Base-TX receiver contains several function
blocks that convert the scrambled 125Mb/s serial
data to synchronous 4-bit nibble data.
The receive section contains the following functional
blocks:
- Signal Detect
- Digital Adaptive Equalization
- MLT-3 to Binary Decoder
- Clock Recovery Module
- NRZI to NRZ Decoder
- Serial to Parallel
- Descrambler
- Code Group Alignment
- 4B5B Decoder
9.4.2.1 Signal Detect
The signal detects function meets the specifications
mandated by the ANSI XT12 TP-PMD 100Base-TX
standards for both voltage thresholds and timing
parameters.
9.4.2.2 Adaptive Equalization
When transmitting data over copper twisted pair
cable at high speed, attenuation based on frequency
becomes a concern. In high speed twisted pair
signaling, the frequency content of the transmitted
signal can vary greatly during normal operation based
on the randomness of the scrambled data stream.
This variation in signal attenuation, caused by
frequency variations, must be compensated for to
ensure the integrity of the received data. In order to
ensure quality transmission when employing MLT-3
encoding, the compensation must be able to adapt to
various cable lengths and cable types depending on
the installed environment. The selection of long cable
lengths for a given implementation requires
significant compensation, which will be over-killed in
a situation that includes shorter, less attenuating
cable lengths. Conversely, the selection of short or
intermediate
cable
lengths
requiring
less
compensation will cause serious under-compensation
for longer length cables. Therefore, the compensation
or equalization must be adaptive to ensure proper
conditioning of the received signal independent of the
cable length.
76
9.4.2.3 MLT-3 to NRZI Decoder
The DM9016 decodes the MLT-3 information from
the Digital Adaptive Equalizer into NRZI data.
9.4.2.4 Clock Recovery Module
The Clock Recovery Module accepts NRZI data from
the MLT-3 to NRZI decoder. The Clock Recovery
Module locks onto the data stream and extracts the
125 MHz reference clock. The extracted and
synchronized clock and data are presented to the
NRZI to NRZ decoder.
9.4.2.5 NRZI to NRZ
The transmit data stream is required to be NRZI
encoded for compatibility with the TP-PMD standard
for 100Base-TX transmission over Category-5
unshielded twisted pair cable. This conversion
process must be reversed on the receive end. The
NRZI to NRZ decoder receives the NRZI data stream
from the Clock Recovery Module and converts it to a
NRZ data stream to be presented to the Serial to
Parallel conversion block.
9.4.2.6 Serial to Parallel
The Serial to Parallel Converter receives a serial data
stream from the NRZI to NRZ converter. It converts
the data stream to parallel data to be presented to the
descrambler.
9.4.2.7 Descrambler
Because of the scrambling process requires to
control the radiated emissions of transmit data
streams, the receiver must descramble the receive
data streams. The descrambler receives scrambled
parallel data streams from the Serial to Parallel
converter, and it descrambles the data streams, and
presents the data streams to the Code Group
alignment block.
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
9.4.2.8 Code Group Alignment
The Code Group Alignment block receives un-aligned
5B data from the descrambler and converts it into 5B
code group data. Code Group Alignment occurs after
the J/K is detected and subsequent data is aligned on
a fixed boundary.
9.4.2.9 4B5B Decoder
The 4B5B Decoder functions as a look-up table that
translates incoming 5B code groups into 4B (Nibble)
data. When receiving a frame, the first 2 5-bit code
groups receive the start-of-frame delimiter (J/K
symbols). The J/K symbol pair is stripped and two
nibbles of preamble pattern are substituted. The last
two code groups are the end-of-frame delimiter (T/R
Symbols).
The T/R symbol pair is also stripped from the nibble,
presented to the Reconciliation layer.
9.4.3 10Base-T Operation
The 10Base-T transceiver is IEEE 802.3u compliant.
When the DM9016 is operating in 10Base-T mode,
the coding scheme is Manchester. Data processed
for transmit is presented in nibble format, converted
to a serial bit stream, then the Manchester encoded.
When receiving, the bit stream, encoded by the
Manchester, is decoded and converted into nibble
format.
9.4.4 Collision Detection
For half-duplex operation, a collision is detected
when the transmit and receive channels are active
simultaneously. Collision detection is disabled in full
duplex operation.
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
9.4.5 Carrier Sense
Carrier Sense (CRS) is asserted in half-duplex
operation during transmission or reception of data.
During full-duplex mode, CRS is asserted only during
receive operations.
9.4.6 Auto-Negotiation
The objective of Auto-negotiation is to provide a
means to exchange information between linked
devices and to automatically configure both devices
to take maximum advantage of their abilities. It is
important to note that Auto-negotiation does not test
the characteristics of the linked segment. The
Auto-Negotiation function provides a means for a
device to advertise supported modes of operation to
a remote link partner, acknowledge the receipt and
understanding of common modes of operation, and to
reject un-shared modes of operation. This allows
devices on both ends of a segment to establish a link
at the best common mode of operation. If more than
one common mode exists between the two devices, a
mechanism is provided to allow the devices to
resolve to a single mode of operation using a
predetermined priority resolution function.
Auto-negotiation also provides a parallel detection
function for devices that do not support the
Auto-negotiation feature. During Parallel detection
there is no exchange of information of configuration.
Instead, the receive signal is examined. If it is
discovered that the signal matches a technology,
which the receiving device supports, a connection will
be automatically established using that technology.
This allows devices not to support Auto-negotiation
but support a common mode of operation to establish
a link.
77
DM9016
3-port switch with Processor Interface
10. DC and AC Electrical Characteristics
10.1 Absolute Maximum Ratings
Symbol
Parameter
VCC3
3.3V Supply Voltage
VCCI
1.8V core power supply
AVDD3
Analog power supply 3.3V
AVDDI
Analog power supply 1.8V
VIN
DC Input Voltage (VIN)
Storage Temperature range
TSTG
Ambient Temperature
TA
Lead Temperature
LT
(TL, soldering, 10 sec.).
10.2 Operating Conditions
Symbol
Parameter
VCC3
3.3V Supply Voltage
VCCI
1.8V core power supply
AVDD3
Analog power supply 3.3V
AVDDI
Analog power supply 1.8V
PD
100BASE-TX
(Power
Dissipation)
10BASE-TX
Auto-negotiation or cable off
78
Min.
3.135
1.71
3.135
1.71
3.135
-65
0
-
Min.
3.135
1.71
3.135
1.71
-
Typ.
3.30
1.80
3.30
1.80
230
70
140
250
Max.
3.6
1.95
3.6
1.95
3.6
+150
+70
+260
Max.
3.465
1.89
3.465
1.89
-
Unit
V
V
V
V
V
°C
°C
°C
Unit
V
V
V
V
mA
mA
mA
mA
360
mA
30
170
40
mA
mA
mA
Conditions
Lead-free Device
Conditions
1.8V only
3.3V only
TX idle, 1.8V only
50% utilization,
1.8V only
100% utilization,
1.8V only
3.3V only
1.8V only
3.3V only
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
10.3 DC Electrical Characteristics
Symbol
Parameter
Inputs
VIL
Input Low Voltage
VIH
Input High Voltage
IIL
Input Low Leakage Current
IIH
Input High Leakage Current
Outputs
VOL
Output Low Voltage
VOH
Output High Voltage
Receiver
VICM
RX+/RX- Common Mode Input
Voltage
Transmitter
VTD100 100TX+/- Differential Output Voltage
VTD10 10TX+/- Differential Output Voltage
ITD100 100TX+/- Differential Output Current
ITD10
10TX+/- Differential Output Current
Min.
Typ.
Max.
Unit
Conditions
2.0
-1
-
-
0.8
1
V
V
uA
uA
Vcond1
Vcond1
VIN = 0.0V, Vcond1
VIN = 3.3V, Vcond1
2.4
-
0.4
-
V
V
IOL = 4mA
IOH = -4mA
-
1.8
-
V
100 Ω Termination
Across
1.9
4.4
│19│
│44│
2.0
5
│20│
│50│
2.1
5.6
│21│
│56│
V
V
mA
mA
Peak to Peak
Peak to Peak
Absolute Value
Absolute Value
Note: Vcond1 = VCC3 = 3.3V, VCCI = 1.8V, AVDD3 = 3.3V, AVDDI = 1.8V.
10.4 AC characteristics
10.4.1 Power On Reset Timing
T1
PWRST#
T4
Strap pins
T2
EECS
T3
CS#
T5
Symbol
T1
T2
T3
T4
T5
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Parameter
PWRST# Low Period
Strap pin hold time with PWRST#
PWRST# high to EECS high
PWRST# high to EECS burst end
PWRST# high to CS# available
Min.
1
40
--
Typ.
5
-400
Max.
4
--
Unit
ms
ns
us
ms
us
Conditions
79
DM9016
3-port switch with Processor Interface
10.4.2 Processor I/O Read Timing
CS#,CMD
T1
T2
IOR#
T4
T3
SD0~31
T5
Symbol
T1
T2
T3
T4
Parameter
CS#,CMD valid to IOR# valid
IOR# invalid to CS#,CMD invalid
IOR# width
IOR# invalid to next IOR#/IOW# valid
When read DM9016 register
T4
IOR# invalid to next IOR#/IOW# valid
When read DM9016 memory with F0h register
T3+T4 IOR# invalid to next IOR#/IOW# valid
When read DM9016 memory with F2h register
T5
System Data(SD) Delay time
T6
IOR# invalid to System Data(SD) invalid
Note: the Unit: clk is under the internal system clock 50MHz..
80
T6
Min.
5
5
20
2
Typ.
Max.
Unit
ns
ns
ns
clk*
4
clk*
1
clk*
25
10
ns
ns
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
10.4.3 Processor I/O Write Timing
CS#,CMD
IOW#
T1
T2
T4
T3
∫∫
T5
SD0~31
T6
Symbol
T1
T2
T3
T4
Parameter
CS#,CMD valid to IOW# valid
IOW# Invalid to CS#,CMD Invalid
IOW# Width
IOW# Invalid to next IOW#/IOR# valid
When write DM9016 INDEX port
T4
IOW# Invalid to next IOW#/IOR# valid
When write DM9016 DATA port
T5
System Data(SD) Hold Time
T6
System Data(SD) Setup Time
T3+T4 IOW# Invalid to next IOW#/IOR# valid
When write DM9016 memory
Note: the Unit: clk is under the internal system clock 50MHz.
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Min.
5
0
20
1
Typ.
Max.
Unit
ns
ns
ns
clk*
2
clk*
3
5
1
ns
ns
clk*
81
DM9016
3-port switch with Processor Interface
10.4.4 Port 2 MII Interface Transmit Timing
TXC2
TXE2
T1
T2
TXD2_3~0
Symbol
Parameter
T1
TXE2,TXD2_3~0 Setup Time
T2
TXE2,TXD2_3~0 Hold Time
Min.
Typ.
32
8
Max.
Unit
ns
ns
Max.
Unit
ns
ns
10.4.5 Port 2 MII Interface Receive Timing
RXC2
RXER2,RXDV2
T1
T2
RXD2_3~0
Symbol
Parameter
T1
RXER2, RXDV2,RXD2_3~0 Setup Time
T2
RXER2, RXDV2,RXD2_3~0 Hold Time
82
Min.
5
5
Typ.
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
10.4.6 MII Management Interface Timing
T1
MDC
T2
MDIO (drived by DM9016)
T4
T3
MDIO (drived by exetrnal MII)
T5
Symbol
T1
T2
T3
T4
T5
Parameter
MDC Frequency
MDIO by DM9016 Setup Time
MDIO by DM9016 Hold Time
MDIO by External MII Setup Time
MDIO by External MII Hold Time
Min.
Typ.
0.52
955
960
Max.
40
40
Unit
MHz
ns
ns
ns
ns
10.4.7 EEPROM Timing
T1
T2
EECS
T3
EECK
T4
EEDO
T6
T5
EEDI
T7
Symbol
T1
T2
T3
T4
T5
T6
T7
Parameter
EECS Setup Time
EECS Hold Time
EECK Frequency
EEDO Setup Time
EEDO Hold Time
EEDI Setup Time
EEDI Hold Time
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
Min.
8
8
Typ.
480
2080
0.38
460
2100
Max.
Unit
ns
ns
MHz
ns
ns
ns
ns
83
DM9016
3-port switch with Processor Interface
11. Package Information
128 Pins LQFP Package Outline Information:
Symbol
Dimension in mm
Dimension in inch
Min
Nom
Max
Min
Nom
Max
A
-
-
1.60
-
-
0.063
A1
0.05
-
-
0.002
-
-
A2
1.35
1.40
1.45
0.053
0.055
0.057
b
0.13
0.18
0.23
0.005
0.007
0.009
b1
0.13
0.16
0.19
0.005
0.006
0.007
c
0.09
-
0.20
0.004
-
0.008
c1
0.09
-
0.16
0.004
-
0.006
D
15.85
16.00
16.15
0.624
0.630
0.636
D1
13.90
14.00
14.10
0.547
0.551
0.555
E
15.85
16.00
16.15
0.624
0.630
0.636
E1
13.90
14.00
14.10
0.547
0.551
0.555
E
L
0.40 BSC
0.45
L1
0.60
0.016 BSC
0.75
0.018
1.00 REF
0.024
0.030
0.039 REF
R1
0.08
-
-
0.003
-
-
R2
0.08
-
0.20
0.003
-
0.008
S
0.20
-
0.008
Θ
0
Θ1
0
Θ2
θ3
-
o
3.5
o
-
o
o
-
-
o
3.5
7
o
-
-
7
0
-
0
o
o
12 TYP
o
12 TYP
12 TYP
12 TYP
o
o
o
1. Dimension D1 and E1 do not include resin fin.
2. All dimensions are base on metric system.
3. General appearance spec should base on its final visual inspection spec.
84
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
DM9016
3-port switch with Processor Interface
12. Ordering Information
Part Number
DM9016EP
Pin Count
128
Package
LQFP
(Pb-free)
*Support Lead-Free and Halogen-Free
Disclaimer
The information appearing in this publication is
believed to be accurate. Integrated circuits sold by
DAVICOM Semiconductor are covered by the
warranty and patent indemnification provisions
stipulated in the terms of sale only. DAVICOM makes
no warranty, express, statutory, implied or by
description regarding the information in this
publication or regarding the information in this
publication or regarding the freedom of the described
chip(s) from patent infringement.
FURTHER,
DAVICOM
MAKES
NO
WARRANTY
OF
MERCHANTABILITY OR FITNESS FOR ANY
PURPOSE. DAVICOM reserves the right to halt
production or alter the specifications and prices at
any time without notice. Accordingly, the reader is
cautioned to verify that the data sheets and other
information in this publication are current before
placing orders. Products described herein are
intended for use in normal commercial applications.
Applications involving unusual environmental or
reliability requirements, e.g. military equipment or
medical life support equipment, are specifically not
recommended without additional processing by
DAVICOM for such applications. Please note that
application circuits illustrated in this document are for
reference purposes only.
DAVICOM’s terms and conditions printed on the
order acknowledgment govern all sales by DAVICOM.
DAVICOM will not be bound by any terms
inconsistent with these unless DAVICOM agrees
otherwise in writing. Acceptance of the buyer’s orders
shall be based on these terms.
Company Overview
DAVICOM Semiconductor Inc. develops and
manufactures integrated circuits for integration into
data communication products. Our mission is to
design and produce IC products that are the
industry’s best value for Data, Audio, Video, and
Internet/Intranet applications. To achieve this goal,
we have built an organization that is able to develop
chipsets in response to the evolving technology
requirements of our customers while still delivering
products that meet their cost requirements.
Products
We offer only products that satisfy high performance
requirements and which are compatible with major
hardware and software standards. Our currently
available and soon to be released products are based
on our proprietary designs and deliver high quality,
high performance chipsets that comply with modem
communication standards and Ethernet networking
standards.
Contact Windows
For additional information about DAVICOM products, contact the Sales department at:
Headquarters
Hsin-chu Office:
No.6 Li-Hsin Rd. VI,
Science-based Park,
Hsin-chu City, Taiwan, R.O.C.
TEL: + 886-3-5798797
FAX: + 886-3-5646929
MAIL: [email protected]
HTTP: http://www.davicom.com.tw
WARNING
Conditions beyond those listed for the absolute maximum may destroy or damage the products. In addition, conditions for sustained periods at near the limits of
the operating ranges will stress and may temporarily (and permanently) affect and damage structure, performance and/or function.
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
85