DAVICOM Semiconductor, Inc. DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus DATA SHEET Preliminary Version: DM9302-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus CONTENT 1. GENERAL DESCRIPTION............................................................................................... 9 2. BLOCK DIAGRAM........................................................................................................... 9 3. FEATURES .................................................................................................................... 10 4. PIN CONFIGURATION : 64 PIN LQFP.......................................................................... 11 5. PIN DESCRIPTION ........................................................................................................ 12 5.1 Processor Bus interface ............................................................................................................................... 12 5.2 EEPROM Interfaces ....................................................................................................................................... 12 5.3 LED Pins ......................................................................................................................................................... 13 5.4 Clock Interface............................................................................................................................................... 13 5.5 Network Interface .......................................................................................................................................... 13 5.6 Miscellaneous Pins ....................................................................................................................................... 14 5.7 Power Pins ..................................................................................................................................................... 14 5.8 Strap pins table.............................................................................................................................................. 14 6. CONTROL AND STATUS REGISTER SET................................................................... 15 6.1 Network Control Register (00H) ................................................................................................................... 17 6.2 Network Status Register (01H)..................................................................................................................... 17 6.3 TX Control Register (02H)............................................................................................................................. 18 6.4 RX Control Register (05H) ............................................................................................................................ 18 2 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.5 RX Status Register (06H) .............................................................................................................................. 18 6.6 Receive Overflow Counter Register (07H) .................................................................................................. 18 6.7 Flow Control Register (0AH)......................................................................................................................... 18 6.8 EEPROM & PHY Control Register (0BH) ..................................................................................................... 18 6.9 EEPROM & PHY Address Register (0CH) ................................................................................................... 19 6.10 EEPROM & PHY Data Registers (0DH~0EH)............................................................................................. 19 6.11 Link Change Control Register (0FH) ......................................................................................................... 19 6.12 Processor Port Physical Address Registers (10H~15H) ......................................................................... 19 6.13 Processor Port Multicast Address Registers (16H~1DH)........................................................................ 19 6.14 RX Packet Length Low Register ( 20H ) .................................................................................................... 20 6.15 RX Packet Length High Register ( 21H ) ................................................................................................... 20 6.16 RX Additional Status Register ( 26H ) ....................................................................................................... 20 6.17 RX Additional Control Register ( 27H )...................................................................................................... 20 6.18 Vendor ID Registers (28H~29H) ................................................................................................................. 20 6.19 Chip Revision Register (2CH) .................................................................................................................... 20 6.20 Transmit Check Sum Control Register (31H) ........................................................................................... 20 6.21 Receive Check Sum Control Status Register (32H)................................................................................. 21 6.22 uP Data Bus driving capability Register (38H) ......................................................................................... 21 6.23 IRQ Pin Control Register (39H) .................................................................................................................. 21 6.24 TX/RX Memory Size Control Register (3FH) ............................................................................................. 22 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 3 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.25 Switch Control Register (52H).................................................................................................................... 22 6.26 VLAN Control Register (53H) ..................................................................................................................... 22 6.27 DSP PHY Control Register (58H~59H)....................................................................................................... 23 6.28 Per Port Control/Status Index Register (60H)........................................................................................... 23 6.29 Per Port Control Data Register (61H) ........................................................................................................ 23 6.30 Per Port Status Data Register (62H) .......................................................................................................... 24 6.31 Per Port Forward Control Register (65H) .................................................................................................. 24 6.32 Per Port Ingress and Egress Control Register (66H)............................................................................... 25 6.33 Per Port Bandwidth Control Setting Register (67H) ................................................................................ 26 6.34 Per Port Block Unicast Ports Control Register (68H) .............................................................................. 27 6.35 Per Port Block Multicast Ports Control Register (69H) ........................................................................... 27 6.36 Per Port Block Broadcast Ports Control Register (6AH)......................................................................... 27 6.37 Per Port Block Unknown Ports Control Register (6BH) .......................................................................... 27 6.38 Per Port Priority Queue Control Register (6DH)....................................................................................... 27 6.39 Per Port VLAN Tag Low Byte Register (6EH) ........................................................................................... 28 6.40 Per Port VLAN Tag High Byte Register (6FH)........................................................................................... 28 6.41 MIB Counter Port Index Register (80H) ..................................................................................................... 28 6.42 MIB Counter Data Registers (81H~84H) .................................................................................................... 28 6.43 Port-Based VLAN Mapping Table Registers (B0H~BFH)......................................................................... 29 6.44 TOS Priority Map Registers (C0H~CFH).................................................................................................... 29 6.45 VLAN Priority Map Registers (D0H~D1H) ................................................................................................. 32 4 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.46 Memory Data Pre-Fetch Read Command without Address Increment Register (F0H) ........................ 32 6.47 Memory Data Read Command with Address Increment Register (F2H)................................................ 32 6.48 Memory Data Read Address Register (F4H) ............................................................................................. 32 6.49 Memory Data Read Address Register (F5H) ............................................................................................. 32 6.50 Memory Data Write Command without Address Increment Register (F6H).......................................... 32 6.51 Memory Data Write Command with Address Increment Register (F8H) ............................................... 33 6.52 Memory Data Write Address Register (FAH) ............................................................................................ 33 6.53 Memory Data Write Address Register (FBH) ............................................................................................ 33 6.54 TX Packet Length Registers (FCH~FDH) .................................................................................................. 33 6.55 Interrupt Status Register (FEH).................................................................................................................. 33 6.56 Interrupt Mask Register (FFH).................................................................................................................... 33 7. EEPROM FORMAT........................................................................................................ 34 8. PHY REGISTERS .......................................................................................................... 37 8.1 Basic Mode Control Register (BMCR) – 00H .............................................................................................. 38 8.2 Basic Mode Status Register (BMSR) – 01H ................................................................................................ 39 8.3 PHY ID Identifier Register #1 (PHYID1) – 02H............................................................................................. 40 8.4 PHY ID Identifier Register #2 (PHYID2) – 03H............................................................................................. 40 8.5 Auto-negotiation Advertisement Register (ANAR) – 04H.......................................................................... 40 8.6 Auto-negotiation Link Partner Ability Register (ANLPAR) – 05H ............................................................. 41 8.7 Auto-negotiation Expansion Register (ANER) - 06H ................................................................................. 42 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 5 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 8.8 DAVICOM Specified Configuration Register (DSCR) – 10H ...................................................................... 43 8.9 DAVICOM Specified Configuration and Status Register (DSCSR) – 11H ................................................ 44 8.10 10BASE-T Configuration/Status (10BTCSR) – 12H.................................................................................. 45 8.11 Power Down Control Register (PWDOR) – 13H........................................................................................ 45 8.12 (Specified config) Register – 14H .............................................................................................................. 46 8.13 DAVICOM Specified Receive Error Counter Register (RECR) – 16H ..................................................... 47 8.14 DAVICOM Specified Disconnect Counter Register (DISCR) – 17H ........................................................ 47 8.15 Power Saving Control Register (PSCR) – 1DH ......................................................................................... 47 9. FUNCTIONAL DESCRIPTION....................................................................................... 48 9.1 Processor bus and memory management function: ................................................................................. 48 9.1.1 Processor Interface .................................................................................................................................. 48 9.1.2 Direct Memory Access Control................................................................................................................. 48 9.1.3 Packet Transmission................................................................................................................................ 48 9.1.4 Packet Reception ..................................................................................................................................... 48 9.2 Switch function:............................................................................................................................................. 49 9.2.1 Address Learning ..................................................................................................................................... 49 9.2.2 Address Aging .......................................................................................................................................... 49 9.2.3 Packet Forwarding ................................................................................................................................... 49 9.2.4 Inter-Packet Gap (IPG) ............................................................................................................................ 49 9.2.5 Back-off Algorithm.................................................................................................................................... 49 9.2.6 Late Collision............................................................................................................................................ 49 9.2.7 Half Duplex Flow Control ......................................................................................................................... 49 9.2.8 Full Duplex Flow Control .......................................................................................................................... 49 9.2.9 Partition Mode .......................................................................................................................................... 49 9.2.10 Broadcast Storm Filtering....................................................................................................................... 50 9.2.11 Bandwidth Control.................................................................................................................................. 50 9.2.12 Port Monitoring Support ......................................................................................................................... 50 6 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 9.2.13 VLAN Support ........................................................................................................................................ 51 9.2.13.1 Port-Based VLAN................................................................................................................................ 51 9.2.13.2 802.1Q-Based VLAN........................................................................................................................... 51 9.2.13.3 Tag/Untag ........................................................................................................................................... 51 9.2.14 Priority Support ...................................................................................................................................... 51 9.2.14.1 Port-Based Priority .............................................................................................................................. 52 9.2.14.2 802.1p-Based Priority.......................................................................................................................... 52 9.2.14.3 DiffServ-Based Priority........................................................................................................................ 52 9.3 Internal PHY functions .................................................................................................................................. 53 9.3.1 100Base-TX Operation ............................................................................................................................ 53 9.3.1.1 4B5B Encoder ....................................................................................................................................... 53 9.3.1.2 Scrambler .............................................................................................................................................. 53 9.3.1.3 Parallel to Serial Converter ................................................................................................................... 53 9.3.1.4 NRZ to NRZI Encoder ........................................................................................................................... 53 9.3.1.5 MLT-3 Converter ................................................................................................................................... 53 9.3.1.6 MLT-3 Driver ......................................................................................................................................... 53 9.3.1.7 4B5B Code Group................................................................................................................................. 54 9.3.2 100Base-TX Receiver .............................................................................................................................. 55 9.3.2.1 Signal Detect ......................................................................................................................................... 55 9.3.2.2 Adaptive Equalization............................................................................................................................ 55 9.3.2.3 MLT-3 to NRZI Decoder........................................................................................................................ 55 9.3.2.4 Clock Recovery Module ........................................................................................................................ 55 9.3.2.5 NRZI to NRZ ......................................................................................................................................... 55 9.3.2.6 Serial to Parallel .................................................................................................................................... 55 9.3.2.7 Descrambler .......................................................................................................................................... 55 9.3.2.8 Code Group Alignment.......................................................................................................................... 56 9.3.2.9 4B5B Decoder....................................................................................................................................... 56 9.3.3 10Base-T Operation................................................................................................................................. 56 9.3.4 Collision Detection ................................................................................................................................... 56 9.3.5 Carrier Sense ........................................................................................................................................... 56 9.3.6 Auto-Negotiation ...................................................................................................................................... 56 10. DC AND AC ELECTRICAL CHARACTERISTICS ..................................................... 57 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 7 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 10.1 Absolute Maximum Ratings ....................................................................................................................... 57 10.2 Operating Conditions.................................................................................................................................. 57 10.3 DC Electrical Characteristics ..................................................................................................................... 58 10.4 AC characteristics ....................................................................................................................................... 59 10.4.1 Power On Reset Timing ......................................................................................................................... 59 10.4.2 Processor I/O Read Timing.................................................................................................................... 60 10.4.3 Processor I/O Write Timing .................................................................................................................... 61 10.4.4 EEPROM timing ..................................................................................................................................... 62 11. PACKAGE INFORMATION........................................................................................ 63 12. ORDERING INFORMATION ...................................................................................... 64 8 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 1. GENERAL DESCRIPTION The DM9302 Fiber converter is complied with IEEE802.3 standards, and designed to convert data signal between 10/100 Base-TX and 100 Base-FX fast Ethernet. Media converters are connected between Fiber cable and twisted cable segments with network and also the simplest way to interconnect any equipment’s 100BASE-TX / 10BASE-T to the 100BASE-FX interface network. 2. BLOCK DIAGRAM Switch Engine PECL TX/RX 100M PECL TXMT/ RXCR 100M MAC Port 1 10/ 100 M 10/ 100 M MDI / MDIX PHY MAC Port 0 8 / 16 bit Processor Host Processor Interface MAC Memory Switch Fabric Embedded BIST Memory Switch Memory Controller Management Bus Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Control MIB EEPROM Registers Counters Interface EEPROM 9 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 3. FEATURES 10 10/100BASE-TX/FX switch base single-chip media converter Compliant with IEEE802.3u 100BASE-TX standard, Compliant with ANSI X3T12 TP-PMD 1995 standard, Compliant with ANSI X3.166 FDDI-PMD 8/16-bit Processor Interface Per port supports 4 priority queues by Port-based, 802.1P VLAN, and IP TOS priority. Support 802.1Q VLAN up-to 16 VLAN group Support VLAN ID tag/untag options Per port support bandwidth, ingress and egress rate control Support Broadcast Storming filter function Support Store and Forward switching approach Support IEEE 802.3x Flow Control in Full-duplex mode Support Back Pressure Flow Control in Half-duplex mode Recode up-to 1K Uni-cast MAC addresses Automatic aging scheme EEPROM interface for power up configurations Support MIB-II counters Local bus slave architecture TCP/IP/UDP/IPv4 checksum offload Compatible with 3.3V and 5.0V tolerant I/O DSP PHY with HP Auto-MDIX, DSP architecture PHY Transceiver 64-pin LQFP, 0.18 um process, support Lead-Free and Halogen–Free Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus VCNTL 49 VREF VCC3 50 51 TX0- TX0+ AVDDI AVDD3 RX1- RX1+ AGND TX1- TX1+ AVDDI 42 41 40 39 38 37 36 35 34 33 RX0+ AGND 43 44 BGRES AVDD3 RX045 46 47 48 SD 4. Pin Configuration : 64 pin LQFP 32 TEST1 31 GND 30 PWRST# X1 52 29 EECS X2 53 28 GND 54 27 EECK EEDIO LNK1_LED SPD1_LED 55 26 VCC3 56 25 SD15 LNK0_LED 57 24 SD14 SPD0_LED 58 23 GND TEST2 59 22 SD13 CMD VCCI 60 21 SD12 61 20 SD11 SD10 SD9 SD8 DM9302 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 7 8 9 10 11 12 13 14 15 16 GND SD3 SD4 SD5 VCC3 SD6 SD7 GND VCCI 6 SD2 IOR# SD1 17 5 64 SD0 GND 3 4 18 IRQ GND 19 63 1 2 62 VCC3 CS# IOW# 11 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 5. PIN DESCRIPTION I = Input, O = Output, I/O = Input / Output, O/D = Open Drain, P = Power, PD=internal pull-low (approx. 50K ohm) # = asserted Low 5.1 Processor Bus interface Pin No. Pin Name I/O 2 IOR# I 3 IRQ O 5,6,7,9,10,12,14,15, 17,18,19,20,21,22,24,25 60 SD0~15 I/O CMD I 62 CS# I 63 IOW# I Pin Name I/O 27 28 EEDIO EECK I,/O O,PD 29 EECS O,PD 5.2 EEPROM Interfaces Pin No. 12 Description Processor Read Command Default is low active. The polarity can be changed by setting EEPROM. Interrupt Request Default is high active and non-open collector type. Its polarity and output type can be changed by strap pins or EEPROM setting. Processor Data Bus bit 0~15 Command Type Upon the IO transaction, when CMD is high, SD0~15 reflect the value of DATA port when CMD is low, SD0~15 reflect the value of INDEX port Processor Chip Select Command Default is low active. Its polarity can be changed by EEPROM setting. Processor Write Command Default is low active. Its polarity can be changed by EEPROM setting. Description EEPROM Data In/Out EEPROM Serial Clock This pin is used as the clock for the EEPROM data transfer. EEPROM Chip Selection. Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 5.3 LED Pins Pin No. Pin Name 55 LNK1_LED 56 SPD1_LED 57 LNK0_LED 58 SPD0_LED 5.4 Clock Interface Pin No. I/O O/D O/D O/D O/D Description Port 1 Link / Active LED It is the combined LED of link and carrier sense signal of the port 1. Port 1 Speed LED It’s low to indicate that the port 1 operates in 100M mode. It’s floating to indicate that the port 1 operates in 10M mode. Port 0 Link / Active LED It is the combined LED of link and carrier sense signal of the port 0. Port 0 Speed LED It’s low to indicate that the port 0 operates in 100M mode. It’s floating to indicate that the port 0 operates in 10M mode. Pin Name I/O X1 X2 I O Pin Name I/O Description 34,35 TX1+/- I/O 37,38 RX1+/- I/O 41,42 TX0+/- I/O 44,45 RX0+/- I/O 47 BGRES I/O 48 49 50 SD VCNTL VREF I I/O O Port 1 TP TX These two pins are the transmit output in MDI mode or the receive input in MDIX mode. Port 1 TP RX These two pins are the receive input in MDI mode or the transmit output in MDIX mode. Port 0 FX TX Fiber transmitter data pair. Port 0 FX RX Fiber receiver data pair. Band gap Pin Connect a 1.4Kohm ±1% resistor to Analog Ground (AGND) in application. Fiber Signal Detect 1.8V Voltage control Voltage Reference Connect a 0.1uF capacitor to ground in application. 52 53 5.5 Network Interface Pin No. Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Description Crystal 25MHz In Crystal 25MHz Out 13 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 5.6 Miscellaneous Pins Pin No. Pin Name I/O 30 PWRST# I 32 59 TEST1 TEST2 5.7 Power Pins Pin No. 1,13,26,51 11,61 4,8,16,23,31,54,64 39,46 33,40 36,43 Description Power-on Reset Low active with minimum 1ms I,PD Tie to ground in application I,PD Tie to ground in application Pin Name I/O VCC3 VCCI GND AVDD3 AVDDI AGND P P P P P P Description Digital 3.3V Internal 1.8V core power Digital GND Analog 3.3V power Analog 1.8V power Analog GND 5.8 Strap pins table 1: pull-high 1K~10K, 0: floating (default).,. Pin No. Pin Name 28 EECK 29 EECS 14 Description Processor Data Bus Width 0: 16-bit, SD 0-15 is used as processor data bus (default) 1: 8-bit, SD 0-7 is used as processor data bus; SD 8-15 is left floating. Polarity of IRQ 0: IRQ pin high active (default) 1: IRQ pin low active Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6. CONTROL AND STATUS REGISTER SET The DM9302 implements several control and status registers (CSR), which can be accessed by the host. Register NCR NSR TCR RCR RSR ROCR FCR EPCR EPAR EPDRL EPDRH LCCR PAR MAR RXPLLR RXPLHR RASR RACR VID CHIPR TCSCR RCSCSR DRIVER IRQCR SWITCHCR VLANCR DSP1,2 P_INDEX P_CTRL P_STUS P_RATE P_BW P_UNICAST P_MULTI P_BCAST P_UNKNWN P_PRI VLAN_TAGL VLAN_TAGH P_MIB_IDX MIB_DAT Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 All CSR are set to their default values by power on or software reset unless specified. Description Network Control Register Network Status Register TX Control Register RX Control Register RX Status Register Receive Overflow Counter Register Flow Control Register EEPROM & PHY Control Register EEPROM & PHY Address Register EEPROM & PHY Low Byte Data Register EEPROM & PHY High Byte Data Register Link Change Control Register (0FH) Processor Port Physical Address Registers Processor Port Multicast Address Registers RX Packet Length Low Register RX Packet Length High Register RX Additional Status Register RX Additional Control Register Vendor ID Registers CHIP Revision Registers Transmit Check Sum Control Register Receive Check Sum Control Status Register uP Data Bus driving capability Register IRQ Pin Control Register Switch Control Register VLAN Control Register DSP Control Register I,II Per Port Control/Status Index Register Per Port Control Data Register Per Port Status Data Register Per Port Ingress and Egress Rate Control Register Per Port Bandwidth Control Setting 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 Priority Queue Control Register Per Port VLAN Tag Low Byte Register Per Port VLAN Tag High Byte Register Per Port MIB counter Index Register MIB counter Data Register bit 0~7 Offset 00H 01H 02H 05H 06H 07H 0AH 0BH 0CH 0DH 0EH 0FH 10H-15H 16H-1DH 20H 21H 26H 27H 28H-29H 2CH 31H 32H 38H 39H 52H 53H 58H~59H 60H 61H 62H 66H 67H 68H 69H 6AH 6BH 6DH 6EH 6FH 80H 81H Default value after reset 00H 00H 00H 00H 00H 00H 00H 00H 40H 00H 00H 00H by EEPROM XXH 00H 00H 00H 00H 0A46H 01H 00H 00H 00H 00H 00H 00H 0000H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 01H 00H 00H 00H 15 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus PVLAN TOS_MAP VLAN_MAP MRCMDX MRCMD MRRL MRRH MWCMDX MWCMD MWRL MWRH TXPLL TXPLH ISR IMR 16 MIB counter Data Register bit 8~15 MIB counter Data Register bit 16~23 MIB counter Data Register bit 24~31 Port-based VLAN mapping table registers TOS Priority Map Registers VLAN Priority Map Registers Memory Data Pre-Fetch Read Command Without Address Increment Register Memory Data Read Command With Address Increment Register 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 Interrupt Mask Register 82H 83H 84H B0-BFH C0-CFH D0-D1H F0H 00H 00H 00H 0FH 00H~FFH 50H,FAH XXH F2H XXH F4H F5H F6H 00H 00H XXH F8H XXH FAH FBH FCH FDH FEH FFH 00H 00H XXH XXH 00H 00H Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 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, by PWRST# pin, default value H = hardware reset, by Reg. 52H bit 6, default value S = software reset, by Reg. 00H bit 0, default value E = default value from EEPROM setting 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 should be written with 0. Reserved bits are undefined on read access. 6.1 Network Control Register (00H) Bit Name Default Description 7 RESERVED 0,RO Reserved 6 LNK_X_EN PH0,RW Link Change Status Enable When set, it enables to report port 0 or 1 link change status function. Clearing this bit will also clear link change 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 All transmit packets from processor port are forward to processor port itself. 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 Link Change Status. PH0, This bit is set after port 0 or 1 link changed. 5 LINK_X_ST W/C1 If bit 5 of NCR is set, this bit is cleared by write 1; Otherwise it can be cleared by read or 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 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 17 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 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 6.4 RX Control Register (05H) Bit Name Default 7 HASHALL PHS0,RW RESERVED PHS0,RW 6 5:4 RESERVED PHS0,RW 3 ALL PHS0,RW 2 1 0 RESERVED PHS0,RW PRMSC PHS0,RW RXEN PHS0,RW 6.5 RX Status Register (06H) Bit Name Default 7:4 RESERVED 0,RO 3:2 SRCP 0,RO 1 CE PH0,RO 0 RESERVED 0,RO Description Reserved CRC Appends Disable for Packet Index 2 Reserved CRC Appends Disable for Packet Index 1 TX Request. Auto clears after transmit completely Description Filter All address in Hash Table Reserved Reserved Pass All Multicast Packets All received packets with bit 0 is “1” of Destination Address (DA) field are accepted and save to receive memory. Reserved Promiscuous Mode All received packets are accepted and save to receive memory without DA field filter. RX Enable Description Reserved Source Port Number CRC Error It is set to indicate that the received frame ends with a CRC error Reserved 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 Description 7:6 RESERVED 0,RO Reserved RX Flow Control Enable 5 FLOW_EN PHS0,RW Enables the pause packet for high/low water threshold control 4:0 RESERVED 0,RO Reserved 6.8 EEPROM & PHY Control Register (0BH) Bit Name Default Description 7:6 RESERVED 0,RO Reserved 5 REEP PH0,RW Reload EEPROM. Driver needs to clear it up after the operation completes 4 WEP PH0,RW Write EEPROM Enable 18 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 3 EPOS PH0,RW 2 ERPRR PH0,RW 1 ERPRW PH0,RW 0 ERRE PH0,RO EEPROM or PHY Operation Select When reset, select EEPROM; when set, select PHY EEPROM Read or PHY Register Read Command. Driver needs to clear it up after the operation completes. EEPROM Write or PHY Register Write Command. Driver needs to clear it up after the operation completes. EEPROM Access Status or PHY Access Status When set, it indicates that the EEPROM or PHY access is in progress 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 EEPROM & PHY Data Registers (0DH~0EH) Bit Name Default Description 7:0 EPDRL PH0,RW EEPROM or PHY Low Byte Data (0DH) This data is made to write/read low byte of word address defined in Reg. 0CH to EEPROM or PHY 7:0 EPDRH PH0,RW EEPROM or PHY High Byte Data (0EH) This data is made to write/read high byte of word address defined in Reg. 0CH to EEPROM or PHY 6.11 Link Change Control Register (0FH) Bit Name Type Description 7:6 RESERVED 0,RO Reserved 5 LINKEN PE0,RW Link Change Event Enable When both set of this bit and bit 6 of NCR, it enables link change status Event 4:3 RESERVED 0,RO Reserved 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. 1:0 RESERVED 0,RO Reserved 6.12 Processor Port Physical Address Registers (10H~15H) Bit Name Default 7:0 PAB5 E,RW Physical Address Byte 5 (15H) 7:0 PAB4 E,RW Physical Address Byte 4 (14H) 7:0 PAB3 E,RW Physical Address Byte 3 (13H) 7:0 PAB2 E,RW Physical Address Byte 2 (12H) 7:0 PAB1 E,RW Physical Address Byte 1 (11H) 7:0 PAB0 E,RW Physical Address Byte 0 (10H) Description 6.13 Processor Port Multicast Address Registers (16H~1DH) Bit Name Default Description 7:0 MAB7 X,RW Multicast Address Byte 7 (1DH) 7:0 MAB6 X,RW Multicast Address Byte 6 (1CH) 7:0 MAB5 X,RW Multicast Address Byte 5 (1BH) Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 19 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 7:0 7:0 7:0 7:0 7:0 MAB4 MAB3 MAB2 MAB1 MAB0 X,RW X,RW X,RW X,RW X,RW Multicast Address Byte 4 Multicast Address Byte 3 Multicast Address Byte 2 Multicast Address Byte 1 Multicast Address Byte 0 (1AH) (19H) (18H) (17H) (16H) 6.14 RX Packet Length Low Register ( 20H ) Bit Name Default 7:0 RXPLL PH,RO RX Packet Length Low byte Description 6.15 RX Packet Length High Register ( 21H ) Bit Name Default 7:0 RXPLH PH,RO RX Packet Length High byte Description 6.16 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 6.17 RX Additional Control Register ( 27H ) Bit Name Default RPRD PHS0,RW RX pointer restriction disable 7 6:0 RESERVED 0,RO Reserved 6.18 Vendor ID Registers (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) 6.19 Chip Revision Register (2CH) Bit Name Default 7:0 CHIPR 01H,RO CHIP Revision Description Description Description 6.20 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 20 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.21 Receive Check Sum Control Status Register (32H) Bit Name Default Description 7 UDPS HP0,RO UDP Checksum Status 1: UDP packet checksum is fail. 0: UDP packet checksum is OK or it is not a UDP packet. 6 TCPS HP0,RO TCP Checksum Status 1: TCP packet checksum is fail. 0: TCP packet checksum is OK or it is not a TCP packet. 5 IPS HP0,RO IP Checksum Status 1: IP packet checksum is ail 0: IP packet checksum is OK or it is not an IP packet. 4 UDPP HP0,RO This is an UDP Packet 3 TCPP HP0,RO This is a TCP Packet 2 IPP HP0,RO This is an 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, IP/TCP/UDP checksum field is error, this packet will be discarded. 6.22 uP Data Bus driving capability Register (38H) Bit Name Default RESERVED 0,RW reserved Description 7 6:5 4:3 2 ISA_CURR 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 1: eliminate about 2ns IOW spike Eliminate IOR spike 1: eliminate about 2ns IOR spike 6.23 IRQ Pin Control Register (39H) Bit Name Default 7:2 Reserved PS0,RO Reserved IRQ Pin Output Type Control 1 IRQ_TYPE PET0,RW 1: IRQ Open-Collector output 0: IRQ direct output IRQ Pin Polarity Control 0 IRQ_POL PET0,RW 1: IRQ active low 0: IRQ active high Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Description 21 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.24 TX/RX Memory 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 6.25 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 and auto clear after 10us 5 RST_ANLG P0,RW Reset Analog PHY Core and auto clear after 10us 4:3 SNF_PORT PE00,RW Sniffer Port Number Define the port number to act as the sniffer port 2 CRC_DIS PE0,RW CRC Checking Disable When set, the received CRC error packet also accepts to receive memory. 1:0 AGE PE0,RW Aging 00: no aging 01: 64 ± 32 sec 10: 128 ± 64 sec 11: 256 ±128 sec 6.26 VLAN Control Register (53H) Bit Name Default Description 7 TOS6 PE0,RW Full ToS Using Enable 1: check most significant 6-bit of TOS 0: check most significant 3-bit only of TOS 6 RESERVED 0,RO Reserved 5 UNICAST PE0,RW Unicast packet can across VLAN boundary 4 VIDFF PE0,RW Replace VIDFF If the received packet is a tagged VLAN with VID equal to “FFF”, its VLAN field is replaced with VLAN tag defined in Reg. 6EH and 6FH. 3 VID1 PE0,RW Replace VID01 If the received packet is a tagged VLAN with VID equal to “001”, its VLAN field is replaced with VLAN tag defined in Reg. 6EH and 6FH. 2 VID0 PE0,RW Replace VID0 If the received packet is a tagged VLAN with VID equal to “000”, its VLAN field is replaced with VLAN tag defined in Reg. 6EH and 6FH. 1 PRI PE0,RW Replace priority field in the tag with value define in Reg 6FH bit 7~5. 0 VLAN PE0,RW VLAN mode enable 1: 802.1Q base VLAN mode enable 0: port-base VLAN only 22 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.27 DSP PHY Control Register (58H~59H) 58H: Bit 7:0 Name DSP_CTL1 Default 0,RW Description DSP Control Register 1 for testing only (register 58H) Name DSP_CTL2 Default 0,RW Description DSP Control Register 2 for testing only (register 59H) 59H: Bit 7:0 6.28 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. Note: The processor port INDEX number is 3 6.29 Per Port Control Data Register (61H) Bit Name Default Description 7 RESERVED PE0,RW Reserved 6 PARTI_EN PE0,RW Enable Partition Detection 5 NO_DIS_RX PE0,RW Not 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 PE0,RW Flow control in full duplex mode, or back pressure in half duplex mode enable 0: enable 1: disable 3 BANDWIDTH PE0,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 PE0,RW Broadcast packet filter 0: accept broadcast packets 1: reject broadcast packets 1 MP_DIS PE0,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 DM9302-15-DS-P01 July 30, 2009 23 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.30 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 1: SRAM BIST fail 0: SRAM BIST pass 3 RESERVED 0,RO Reserved 2 SPEED2 P0,RO PHY Speed Status 0: 10Mbps, 1: 100Mbps 1 FDX2 P0,RO PHY Duplex Status 0: half-duplex, 1: full-duplex 0 LINK2 P0,RO PHY Link Status 0: link fail, 1: link OK 6.31 Per Port Forward Control Register (65H) Bit Name Default Description LOOPBACK PH0,RW Loop-Back Mode 7 The received packet will be forward to this port itself. 6 MONI_TX PH0,RW TX Packet Monitored The transmitted packets are also forward to sniffer port. 5 MONI_RX PH0,RW RX Packet Monitored The received packets are also forward to sniffer port. 4 DIS_BMP PH0,RW Broad/Multicast Not Monitored The received broadcast or multicast packets are not forward to sniffer port. 3 Reserved PH0,RW Reserved 2 TX_DIS PH0,RW Packet Transmit Disabled All packets can not be forward to this port. 1 RX_DIS PH0,RW Packet receive Disabled All received packets are discarded. 0 ADR_DIS PH0,RW Address Learning Disabled The Source Address (SA) field of packet is not learned to address table. 24 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.32 Per Port Ingress and Egress Control Register (66H) Bit Name Default Description 7:4 INGRESS PE0,RW Ingress Rate Control These bits define the bandwidth threshold that received packets over the threshold are discarded. 3:0 EGRESS PE0,RW Ingress Rate table below 0000: none 0001: 64Kbps 0010: 128Kbps 0011: 256Kbps 0100: 512Kbps 0101: 1Mbps 0110: 2Mbps 0111: 4Mbps 1000: 8Mbps 1001: 16Mbps 1010: 32Mbps 1011: 48Mbps 1100: 64Mbps 1101: 72Mbps 1110: 80Mbps 1111: 88Mbps Egress Rate Control These bits define the bandwidth threshold that transmitted packets over the threshold are discarded. Egress Rate table below 0000: none 0001: 64Kbps 0010: 128Kbps 0011: 256Kbps 0100: 512Kbps 0101: 1Mbps 0110: 2Mbps 0111: 4Mbps 1000: 8Mbps 1001: 16Mbps 1010: 32Mbps 1011: 48Mbps 1100: 64Mbps 1101: 72Mbps 1110: 80Mbps 1111: 88Mbps Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 25 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.33 Per Port Bandwidth Control Setting Register (67H) Bit Name Default Description 7:4 BSTH PE0,RW Broadcast Storm Threshold These bits define the bandwidth threshold that received broadcast packets over the threshold are discarded. 3:0 BW CTRL PE0,RW Threshold table below 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 Received packet length counted. Bandwidth table below These bits define the bandwidth threshold that transmitted or received packets over the threshold are discarded. Bandwidth table below 0000: none 0001: 64Kbps 0010: 128Kbps 0011: 256Kbps 0100: 512Kbps 0101: 1Mbps 0110: 2Mbps 0111: 4Mbps 1000: 8Mbps 1001: 16Mbps 1010: 32Mbps 1011: 48Mbps 1100: 64Mbps 1101: 72Mbps 1110: 80Mbps 1111: 88Mbps 26 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.34 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 The received unicast packets are not forward to the assigned ports. Note: that the assigned port definition: bit 0 for port 0, bit 1 for port 1, bit 2 reserved, and bit 3 for processor port. 6.35 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 The received multicast packets are not forward to the assigned ports. 6.36 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 The received broadcast packets are not forward to the assigned ports. 6.37 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 The packets with DA field not found in address table are not forward to the assigned ports. 6.38 Per Port Priority Queue Control Register (6DH) Bit Name Default Description 7 TAG_OUT PE0,RW Output Packet Tagging Enable The transmitted packets are containing VLAN tagged field. 6 PRI_DIS PE0,RW Priority Queue Disable Only one transmit queue is supported in this port. 5 WFQUE PE0,RW Weighted Round-Robin Queuing 1: The priority weight for queue 3, 2, 1, and 0 is 8, 4, 2, and 1 respectively. 0: The queue 3 has the highest priority, and the next priorities are queue 2, 1, and 0 respectively. 4 TOS_PRI PE0,RW Priority ToS over VLAN If an IP packet with VLAN tag, the priority of this packet is decode from ToS field. 3 TOS_OFF PE0,RW ToS Priority Classification Disable The priority information from ToS field of IP packet is ignored. 2 PRI_OFF PE0,RW 802.1 p Priority Classification Disable The priority information from VLAN tag field is ignored. Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 27 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 1:0 P_PRI PE0,RW Port Base priority The priority queue number in port base. 00 : queue 0, 01 : queue 1, 10 : queue 2, 11 : queue 3 6.39 Per Port VLAN Tag Low Byte Register (6EH) Bit Name Default 7:0 VID70 PE01,RW VID[7:0] 6.40 Per Port VLAN Tag High Byte Register (6FH) Bit Name Default 7:5 PRI PE0,RW Tag [15:13] 4 CFI PE0,RW Tag[12] 3:0 VID118 PE0,RW VID[11:8] Description Description 6.41 MIB Counter Port Index Register (80H) Bit Name Default Description 7 READY P0,RO MIB counter data is ready When this register is written with INDEX data, this bit is cleared and the MIB counter reading is in progress. After end of read MIB counter, the MIB data is loaded into registers 81H~ 84H and this bit is set to indicate that the MIB data is ready, and then the MIB data of this INDEX is cleared. 6:5 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. 6.42 MIB Counter Data Registers (81H~84H) Register Name Default Description 81H MIB_DAT X,RO MIB counter Data Register bit 0~7 82H MIB_DAT X,RO MIB counter Data Register bit 8~15 83H MIB_DAT X,RO MIB counter Data Register bit 16~23 84H MIB_DAT X,RO MIB counter Data Register bit 24~31 MIB counter: RX Byte Counter Registers (INDEX 00H) MIB counter: RX Uni-cast Packet Counter Registers (INDEX 01H) MIB counter: RX Multi-cast Packet Counter Registers (INDEX 02H) MIB counter: RX Discard Packet Counter Registers (INDEX 03H) MIB counter: RX Error Packet Counter Registers (INDEX 04H) MIB counter: TX Byte Counter Registers (INDEX 05H) MIB counter: TX Uni-cast Packet Counter Registers (INDEX 06H) MIB counter: TX Multi-cast Packet Counter Registers (INDEX 07H) MIB counter: TX Discard Packet Counter Registers (INDEX 08H) MIB counter: TX Error Packet Counter Registers (INDEX 09H) 28 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.43 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 PE0,RO Reserved 3 PORT_UP PE1,RW Mapping to processor 2 RESERVED PE1,RW Reserved 1 PORT_P1 PE1,RW Mapping to port 1 0 PORT_P0 PE1,RW Mapping to port 0 6.44 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. 53H bit 7 is “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. C1H bit [7:6] define ToS value 7. Reg. C0H: Bit 7:6 5:4 3:2 1:0 Name TOS3 TOS2 TOS1 TOS0 Default PE0/1,RW PE0,/1RW PE0,RW PE0,RW Description If Reg. 53H. bit 7 =1 :TOS[7:2]=03H, otherwise TOS]7:5]=03H If Reg. 53H. bit 7 =1 :TOS[7:2]=02H, otherwise TOS]7:5]=02H If Reg.53H. bit 7 =1 :TOS[7:2]=01H, otherwise TOS]7:5]=01H If Reg.53H. bit 7 =1 :TOS[7:2]=00H, otherwise TOS]7:5]=00H Name TOS7 TOS6 TOS5 TOS4 Default PE0/3,RW PE0/3,RW PE0/2,RW PE0/2,RW Description If Reg.53H. bit 7=1 :TOS[7:2]=07H, otherwise TOS]7:5]=07H If Reg.53H. bit 7=1 :TOS[7:2]=06H, otherwise TOS]7:5]=06H If Reg.53H. bit 7=1 :TOS[7:2]=05H, otherwise TOS]7:5]=05H If Reg.53H. bit 7=1 :TOS[7:2]=04H, otherwise TOS]7:5]=04H Name TOSB TOSA TOS9 TOS8 Default PE0,RW PE0,RW PE0,RW PE0,RW If Reg.53H. bit 7=1 :TOS[7:2]=0BH If Reg.53H. bit 7=1 :TOS[7:2]=0AH If Reg.53H. bit 7=1 :TOS[7:2]=09H If Reg.53H. bit 7=1 :TOS[7:2]=08H Name TOSF TOSE TOSD TOSC Default PE0,RW PE0,RW PE0,RW PE0,RW If Reg.53H. bit 7=1 :TOS[7:2]=0FH If Reg.53H. bit 7=1 :TOS[7:2]=0EH If Reg.53H. bit 7=1 :TOS[7:2]=0DH If Reg.53H. bit 7=1 :TOS[7:2]=0CH Reg. C1H: Bit 7:6 5:4 3:2 1:0 Reg. C2H: Bit 7:6 5:4 3:2 1:0 Description Reg. C3H: Bit 7:6 5:4 3:2 1:0 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Description 29 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus Reg. C4H: Bit 7:6 5:4 3:2 1:0 Name TOS13 TOS12 TOS11 TOS10 Default PE1,RW PE1,RW PE1,RW PE1,RW Description If Reg.53H. bit 7=1 :TOS[7:2]=13H If Reg.53H. bit 7=1 :TOS[7:2]=12H If Reg.53H. bit 7=1 :TOS[7:2]=11H If Reg.53H. bit 7=1 :TOS[7:2]=10H Name TOS17 TOS16 TOS15 TOS14 Default PE1,RW PE1,RW PE1,RW PE1,RW If Reg.53H. bit 7=1 :TOS[7:2]=17H If Reg.53H. bit 7=1 :TOS[7:2]=16H If Reg.53H. bit 7=1 :TOS[7:2]=15H If Reg.53H. bit 7=1 :TOS[7:2]=14H Name TOS1B TOS1A TOS19 TOS18 Default PE1,RW PE1,RW PE1,RW PE1,RW If Reg.53H. bit 7=1 :TOS[7:2]=1BH If Reg.53H. bit 7=1 :TOS[7:2]=1AH If Reg.53H. bit 7=1 :TOS[7:2]=19H If Reg.53H. bit 7=1 :TOS[7:2]=18H Name TOS1F TOS1E TOS1D TOS1C Default PE1,RW PE1,RW PE1,RW PE1,RW If Reg.53H. bit 7=1 :TOS[7:2]=1FH If Reg.53H. bit 7=1 :TOS[7:2]=1EH If Reg.53H. bit 7=1 :TOS[7:2]=1DH If Reg.53H. bit 7=1 :TOS[7:2]=1CH Name TOS23 TOS22 TOS21 TOS20 Default PE2,RW PE2,RW PE2,RW PE2,RW If Reg.53H. bit 7=1 :TOS[7:2]=23H If Reg.53H. bit 7=1 :TOS[7:2]=22H If Reg.53H. bit 7=1 :TOS[7:2]=21H If Reg.53H. bit 7=1 :TOS[7:2]=20H Name TOS27 TOS26 TOS25 TOS24 Default PE2,RW PE2,RW PE2,RW PE2,RW Reg. C5H: Bit 7:6 5:4 3:2 1:0 Description Reg. C6H: Bit 7:6 5:4 3:2 1:0 Description Reg. C7H: Bit 7:6 5:4 3:2 1:0 Description Reg. C8H: Bit 7:6 5:4 3:2 1:0 Description Reg. C9H: Bit 7:6 5:4 3:2 1:0 30 Description If Reg.53H. bit 7=1 :TOS[7:2]=27H If Reg.53H. bit 7=1 :TOS[7:2]=26H If Reg.53H. bit 7=1 :TOS[7:2]=25H If Reg.53H. bit 7=1 :TOS[7:2]=24H Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus Reg. CAH: Bit 7:6 5:4 3:2 1:0 Name TOS2B TOS2A TOS29 TOS28 Default PE2,RW PE2,RW PE2,RW PE2,RW Name TOS2F TOS2E TOS2D TOS2C Default PE2,RW PE2,RW PE2,RW PE2,RW Description If Reg.53H. bit 7=1 :TOS[7:2]=2BH If Reg.53H. bit 7=1 :TOS[7:2]=2AH If Reg.53H. bit 7=1 :TOS[7:2]=29H If Reg.53H. bit 7=1 :TOS[7:2]=28H Reg. CBH: Bit 7:6 5:4 3:2 1:0 Description If Reg.53H. bit 7=1 :TOS[7:2]=2FH If Reg.53H. bit 7=1 :TOS[7:2]=2EH If Reg.53H. bit 7 =1 :TOS[7:2]=2DH If Reg.53H. bit 7 =1 :TOS[7:2]=2CH Reg. CCH: Bit 7:6 5:4 3:2 1:0 Name TOS33 TOS32 TOS31 TOS30 Default PE3,RW PE3,RW PE3,RW PE3,RW If Reg.53H. bit 7=1 :TOS[7:2]=33H If Reg.53H. bit 7=1 :TOS[7:2]=32H If Reg.53H. bit 7=1 :TOS[7:2]=31H If Reg.53H. bit 7=1 :TOS[7:2]=30H Description Name TOS37 TOS36 TOS35 TOS34 Default PE3,RW PE3,RW PE3,RW PE3,RW If Reg.53H. bit 7=1 :TOS[7:2]=37H If Reg.53H. bit 7=1 :TOS[7:2]=36H If Reg.53H. bit 7=1 :TOS[7:2]=35H If Reg.53H. bit 7=1 :TOS[7:2]=34H Name TOS3B TOS3A TOS39 TOS38 Default PE3,RW PE3,RW PE3,RW PE3,RW If Reg.53H. bit 7=1 :TOS[7:2]=3BH If Reg.53H. bit 7=1 :TOS[7:2]=3AH If Reg.53H. bit 7=1 :TOS[7:2]=39H If Reg.53H. bit 7=1 :TOS[7:2]=38H Name TOS3F TOS3E TOS3D TOS3C Default PE3,RW PE3,RW PE3,RW PE3,RW Reg. CDH: Bit 7:6 5:4 3:2 1:0 Description Reg. CEH: Bit 7:6 5:4 3:2 1:0 Description Reg. CFH: Bit 7:6 5:4 3:2 1:0 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Description If Reg.53H. bit 7=1 :TOS[7:2]=3FH If Reg.53H. bit 7=1 :TOS[7:2]=3EH If Reg.53H. bit 7=1 :TOS[7:2]=3DH If Reg.53H. bit 7 =1 :TOS[7:2]=3CH 31 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.45 VLAN Priority Map Registers (D0H~D1H) Define the 3-bit of priority field VALN mapping to 2-bit priority queue number. Reg. D0H: Bit Name 7:6 TAG3 5:4 TAG2 3:2 TAG1 1:0 TAG0 Reg. D1H: Bit 7:6 5:4 3:2 1:0 Name TAG7 TAG6 TAG5 TAG4 Default PE1,RW PE1,RW PE0,RW PE0,RW VLAN priority tag value = 03H VLAN priority tag value = 02H VLAN priority tag value = 01H VLAN priority tag value = 00H Description Default PE3,RW PE3,RW PE2,RW PE2,RW VLAN priority tag value = 07H VLAN priority tag value = 06H VLAN priority tag value = 05H VLAN priority tag value = 04H Description 6.46 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 DM9302 starts to pre-fetch the SRAM data to internal data buffers. 6.47 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 Name Default Description 7:0 MRCMD X,RO 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) 6.48 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 Name Default Description 7:0 MDRAL PHS0,RW Memory Data Read Address Low Byte[7:0] 6.49 Memory Data Read Address Register (F5H) Bit Name Default Description 7:0 MDRAH50 PHS0,RW Memory Data Read Byte Address High Byte[15:8] 6.50 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 32 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 6.51 Memory Data Write Command with Address Increment Register (F8H) When register FFH bit 7 is “0”, register FBH value will be returned to 0000H, if 16K-byte boundary is reached. 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) 6.52 Memory Data Write Address Register (FAH) When register FFH bit 7 is “0”, register FBH and FAH can be used as memory byte address to write internal 64K-byte memory. When register FFH bit 7 is “1”, register FBH and FAH are reserved. The processor port transmit memory address is generated by DM9302 automatically. Bit Name Default Description 7:0 MDWAL PHS0,RW Memory Data Write_ address Low Byte[7:0] 6.53 Memory Data Write Address Register (FBH) Bit Name Default Description 7:0 MDWAH PHS0,RW Memory Data Write Byte Address High Byte[15:8] 6.54 TX Packet Length Registers (FCH~FDH) Bit Name Default 7:0 TXPLH PHS0,RW TX Packet Length High byte 7:0 TXPLL PHS0,RW TX Packet Length Low byte 6.55 Interrupt Status Register (FEH) Bit Name Default 7 IOMODE T0, RO 6 5 4 3 2 1 0 RESERVED LNKCHG CNT_ERR ROO ROS PT PR PHS0,RO PHS0,RW/C1 PHS0,RW/C1 PHS0,RW/C1 PHS0,RW/C1 PHS0,RW/C1 PHS0,RW/C1 6.56 Interrupt Mask Register (FFH) Bit Name Default 7 TXRX_EN PHS0,RW 6 RESERVED P0,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 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Description Description Width Processor Data Bus 0: 16-bit mode 1: 8-bit mode Reserved Link Status Change of port 0 or 1 Memory Management 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 Memory Management error interrupt Enable Receive Overflow Counter Overflow Interrupt Enable Receive Overflow Interrupt Enable Packet Transmitted Interrupt Enable Packet Received Interrupt 33 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 7. EEPROM FORMAT 34 name MAC address Auto Load Control Word 0~2 3 Vendor ID pin control 4 6 PHY control 7 RESERVED Control 8~15 16 Switch Control 1 17 Switch Control 2 18 Port 0 Control 1 19 Port 0 Control 2 20 Port 1 Control 1 21 Port 1 Control 2 22 Description 6 byte Ethernet Address Bit 1:0=01: Update vendor ID and product ID Bit 3:2=01: Accept setting of WORD6 [4:0] Bit 5:4= reserved Bit 7:6= reserved, set to 00 in application Bit 9:8=Reserved Bit 11:10= Reserved, set to 00 in application Bit 13:12= Reserved Bit 15:14=01: Accept setting of WORD7 [15:12] 2-byte vendor ID (Default: 0A46H) When word 3 bit [3:2] =01, these bits can control the CS#, IOR#, IOW# and IRQ pins polarity. Bit0: CS# pin is active high when set (default active low) Bit1: IOR# pin is active high when set (default: active low) Bit2: IOW# pin is active high when set (default: active low) Bit3: IRQ pin is active low when set (default: active high) Bit4: IRQ pin is open-collected (default: force output) Bit 15:5: Reserved Bit11:0: reserved Bit 13:12 reserved, set 00 in application Bit14: Port 1 AUTO-MDIX control 1: ON, 0: OFF(default ON) Bit15: 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 15:12 = Reserved, set 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 When word 16 bit 1:0 is “01”, after power on reset: This word bit 7~0 will be loaded to Reg. 58H bit 7~0 This word bit 15~8 will be loaded to Reg. 59H 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. 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: Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus RESERVED uP Port Control 1 23~24 25 uP Port Control 2 26 Port 0 VLAN Tag 27 Port 1 VLAN Tag 28 RESERVED uP Port VLAN Tag 29 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 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 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 Reserved 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 Reserved 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 35 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 36 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 ToS Priority Map 7 47 RESERVED 53 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 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 will be loaded to Reg. CEH bit 7~0 This word bit 15~8 will be loaded to Reg. CFH bit 7~0 Set to 0 in application Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 8. PHY REGISTERS MII Register Description AD Name 15 14 13 12 11 10 9 8 D 00H CONTR Reset Loop Speed Auto-N Power Isolate Restart Full OL back select Enable Down Auto-N Duplex 0 0 1 1 0 0 0 1 01H STATU T4 TX FDX TX HDX 10 FDX 10 Reserved S Cap. Cap. Cap. Cap. HDX Cap. 0 1 1 1 1 0000 02H PHYID1 0 0 0 0 0 0 0 1 03H PHYID2 OUI_LSB 101110 04H Auto-Ne g. Advertis e 05H Link Part. Ability 06H Auto-Ne g. Expansi on 10H Specifi ed Config. 11H Specifi ed Conf/Sta t 12H 10T Conf/Sta t 13H PWDO R 14H Specifie d config 16H RCVER 7 6 Coll. Test 0 5 1 1 0 VNDR_MDL 0 0 TX FDX Adv TX 10 FDX 10 HDX HDX Adv Adv Adv LP Next Page Reserved LP FC LP T4 LP TX FDX LP LP LP TX 10 FDX 10 HDX HDX Reserved 100 FDX 100 HDX Rsvd LP Enable BP BP_AD Reserv ALIGN POK edr 10 FDX TX 0 Jabber Detect Extd Cap. 1 0 0 0 0 0 1 1 0000 Advertised Protocol Selector Field Link Partner Protocol Selector Field Pardet LP Next Next Pg New Pg LP Fault Pg Able Able Rcv AutoN Cap. Force Rsvd. Reserv RMII ed mode 100LNK 10 HDX Reserv Revers Revers ed ed ed HBE SQUE JAB Enable Enable Enable 1 MDL_REV T4 Adv BP SCR 0 0 001011 FC Adv BP 4B5B 2 000_0000 Pream. Auto-N Remote Auto-N Link Supr. Compl. Fault Cap. Status Reserved LP RF 3 Reserved Next FLP Rcv Remote Page Ack Fault LP Ack 4 Serial COL RPDCT Reset Pream. LED R-EN St. Mch Supr. PHY ADDR [4:0] Sleep Remote mode LoopOut Auto-N. Monitor Bit [3:0] Reserved Polarity Reverse PD10D PD100l PDchip PDcrm PDaeq PDdrv PDecli PDeclo PD10 RV TSTSE TSTSE FORCE FORCE PREA TX10M NWAY Reserv MDIX_ AutoNe Mdix_fix Mdix_d MonSel MonSel Reserv PD_val 1 2 _TXSD _FEF MBLEX _PWR _PWR ed CNTL g_dlpbk Value own 1 0 ed ue Receiver Error Counter 17H DIS_con nect 1DH PSCR Reserved Reversed Reversed PREA AMPLIT TX_P MBLE UDE WR X 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 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Disconnect_counter Reversed <Access Type>: RO = Read only, RW = Read/Write <Attribute (s)>: SC = Self clearing, P = Value permanently set 37 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 8.1 Basic Mode Control Register (BMCR) – 00H 38 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 1=Software reset 0=Normal operation 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 1 = Loop-back enabled 0 = Normal operation 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 1 = 100Mbps 0 = 10Mbps 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 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 1=Power down 0=Normal operation 0,RW Isolate Force to 0 in application. 0,RW/SC Restart Auto-negotiation 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 DM9302. The operation of the auto-negotiation process will not be affected by the management entity that clears this bit 0 = Normal operation 1,RW Duplex Mode 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 selected by auto-negotiation 0 = Normal operation Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 7 Collision test 0,RW 6-0 Reserved 0,RO Collision Test 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. 0 = Normal operation 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 2 Link status 0,RO Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Description 100BASE-T4 Capable 1 = DM9302 is able to perform in 100BASE-T4 mode 0 = DM9302 is not able to perform in 100BASE-T4 mode 100BASE-TX Full Duplex Capable 1 = DM9302 is able to perform 100BASE-TX in full duplex mode 0 = DM9302 is not able to perform 100BASE-TX in full duplex mode 100BASE-TX Half Duplex Capable 1 = DM9302 is able to perform 100BASE-TX in half duplex mode 0 = DM9302 is not able to perform 100BASE-TX in half duplex mode 10BASE-T Full Duplex Capable 1 = DM9302 is able to perform 10BASE-T in full duplex mode 0 = DM9302 is not able to perform 10BASE-TX in full duplex mode 10BASE-T Half Duplex Capable 1 = DM9302 is able to perform 10BASE-T in half duplex mode 0 = DM9302 is not able to perform 10BASE-T in half duplex mode Reserved Read as 0, ignore on write MII Frame Preamble Suppression 1 = PHY will accept management frames with preamble suppressed 0 = PHY will not accept management frames with preamble suppressed Auto-negotiation Complete 1 = Auto-negotiation process completed 0 = Auto-negotiation process not completed Remote Fault 1 = Remote fault condition detected (cleared on read or by a chip reset). Fault criteria and detection method is DM9302 implementation specific. This bit will set after the RF bit in the ANLPAR (bit 13, register address 05) is set 0 = No remote fault condition detected Auto Configuration Ability 1 = DM9302 is able to perform auto-negotiation 0 = DM9302 is not able to perform auto-negotiation Link Status 1 = Valid link is established (for either 10Mbps or 100Mbps operation) 0 = Link is not established The link status bit is implemented with a latching function, so that 39 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 1 Jabber detect 0, RO 0 Extended capability 1,RO/P 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 1 = Jabber condition detected 0 = No jabber 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 DM9302 reset. This bit works only in 10Mbps mode Extended Capability 1 = Extended register capable 0 = Basic register capable only 8.3 PHY ID Identifier Register #1 (PHYID1) – 02H The PHY Identifier Registers #1 and #2 work together in a single identifier of the DM9302. 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 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) 8.5 Auto-negotiation Advertisement Register (ANAR) – 04H This register contains the advertised abilities of this DM9302 device as they will be transmitted to its link partner during Auto-negotiation. 40 Bit 15 Bit Name NP Default 0,RO/P 14 ACK 0,RO Description Next page Indication 1 = Next page available 0 = No next page available The DM9302 has no next page, so this bit is permanently set to 0 Acknowledge 1 = Link partner ability data reception acknowledged Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 13 RF 12-11 Reserved 10 FCS 9 T4 8 TX_FDX 7 TX_HDX 6 10_FDX 5 10_HDX 4-0 Selector 0 = Not acknowledged The DM9302'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 1 = Local device senses a fault condition 0 = No fault detected X, RW Reserved Write as 0, ignore on read 1, RW Flow Control Support 1 = Controller chip supports flow control ability 0 = Controller chip doesn’t support flow control ability 0, RO/P 100BASE-T4 Support 1 = 100BASE-T4 is supported by the local device 0 = 100BASE-T4 is not supported The DM9302 does not support 100BASE-T4 so this bit is permanently set to 0 1, RW 100BASE-TX Full Duplex Support 1 = 100BASE-TX full duplex is supported by the local device 0 = 100BASE-TX full duplex is not supported 1, RW 100BASE-TX Support 1 = 100BASE-TX half duplex is supported by the local device 0 = 100BASE-TX half duplex is not supported 1, RW 10BASE-T Full Duplex Support 1 = 10BASE-T full duplex is supported by the local device 0 = 10BASE-T full duplex is not supported 1, RW 10BASE-T Support 1 = 10BASE-T half duplex is supported by the local device 0 = 10BASE-T half duplex is not supported <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 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 Default 0, RO 14 ACK 0, RO 13 RF 0, RO Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Description Next Page Indication 1 = Link partner, next page available 0 = Link partner, no next page available Acknowledge 1 = Link partner ability data reception acknowledged 0 = Not acknowledged The DM9302's auto-negotiation state machine will automatically control this bit from the incoming FLP bursts. Software should not attempt to write to this bit Remote Fault 41 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 12-11 Reserved 10 FCS 9 T4 8 TX_FDX 7 TX_HDX 6 10_FDX 5 10_HDX 4-0 Selector 1 = Remote fault indicated by link partner 0 = No remote fault indicated by link partner 0, RO Reserved Read as 0, ignore on write 0, RO Flow Control Support 1 = Controller chip supports flow control ability by link partner 0 = Controller chip doesn’t support flow control ability by link partner 0, RO 100BASE-T4 Support 1 = 100BASE-T4 is supported by the link partner 0 = 100BASE-T4 is not supported by the link partner 0, RO 100BASE-TX Full Duplex Support 1 = 100BASE-TX full duplex is supported by the link partner 0 = 100BASE-TX full duplex is not supported by the link partner 0, RO 100BASE-TX Support 1 = 100BASE-TX half duplex is supported by the link partner 0 = 100BASE-TX half duplex is not supported by the link partner 0, RO 10BASE-T Full Duplex Support 1 = 10BASE-T full duplex is supported by the link partner 0 = 10BASE-T full duplex is not supported by the link partner 0, RO 10BASE-T Support 1 = 10BASE-T half duplex is supported by the link partner 0 = 10BASE-T half duplex is not supported by the link partner <00000>, RO Protocol Selection Bits Link partner’s binary encoded protocol selector 8.7 Auto-negotiation Expansion Register (ANER) - 06H 42 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: DM9302, next page available NP_ABLE = 0: DM9302, no next page DM9302 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 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 8.8 DAVICOM Specified Configuration Register (DSCR) – 10H Bit Bit Name Default Description 15 BP_4B5B 0,RW Bypass 4B5B Encoding and 5B4B Decoding 1 = 4B5B encoder and 5B4B decoder function bypassed 0 = Normal 4B5B and 5B4B operation 14 BP_SCR 0, RW Bypass Scrambler/Descrambler Function 1 = Scrambler and descrambler function bypassed 0 = Normal scrambler and descrambler operation 13 BP_ALIGN 0, RW Bypass Symbol Alignment Function 1 = Receive functions (descrambler, symbol alignment and symbol decoding functions) bypassed. Transmit functions (symbol encoder and scrambler) bypassed 0 = Normal operation 12 BP_ADPOK 0, RW BYPASS ADPOK Force signal detector (SD) active. This register is for debug only, not release to customer 1: Forced SD is OK, 0: Normal operation 11 Reserved RW Reserved Force to 0 in application TX 1, RW 100BASE-TX Mode Control 10 1 = 100BASE-TX operation 0 = 100BASE-FX operation 9 Reserved 0, RO Reserved 8 Reserved 0, RW Reserved 7 F_LINK_100 0, RW Force Good Link in 100Mbps 1 = Force 100Mbps good link status 0 = Normal 100Mbps operation This bit is useful for diagnostic purposes 6 Reserved 0, RW Reserved Force to 0 in application. 5 COL_LED 0, RW COL LED Control (valid in PHY test mode) 4 RPDCTR-EN 1, RW Reduced Power Down Control Enable This bit is used to enable automatic reduced power down 1 = Enable automatic reduced power down 0 = Disable automatic reduced power down 3 SMRST 0, RW 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 2 MFPSC 1, RW MF Preamble Suppression Control MII frame preamble suppression control bit 1 = MF preamble suppression bit on 0 = MF preamble suppression bit off 1 SLEEP 0, RW 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 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 43 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 0 RLOUT 0, RW 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 8.9 DAVICOM Specified Configuration and Status Register (DSCSR) – 11H Bit Bit Name Default Description 15 100FDX 1, RO 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 14 100HDX 1, RO 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 13 10FDX 1, RO 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 12 10HDX 1, RO 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 11 Reserved 0, RO Reserved Read as 0, ignore on write 10 Reserved 0,RW Reserved 9 Reserved 0,RW Reserved 8-4 PHYADR[4:0] 1, RW 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 3-0 ANMB[3:0] 0, RO 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 44 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 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 1 = Transmission of link pulses enabled 0 = Link pulses disabled, good link condition forced This bit is valid only in 10Mbps operation Heartbeat Enable 1 = Heartbeat function enabled 0 = Heartbeat function disabled When the DM9302 is configured for full duplex operation, this bit will be ignored (the collision/heartbeat function is invalid in full duplex mode) Squelch Enable 1 = Normal squelch 0 = Low squelch Jabber Enable Enables or disables the Jabber function when the DM9302 is in 10BASE-T full duplex or 10BASE-T transceiver Loopback mode 1 = Jabber function enabled 0 = Jabber function disabled 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 Bit Name Reserved 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 20.0 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Default 0, RO 45 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 8.12 (Specified config) Register – 14H Bit Bit Name Default 15 TSTSE1 0,RW 14 TSTSE2 0,RW 13 FORCE_TXSD 0,RW 12 FORCE_FEF 0,RW 11 PREAMBLEX 0,RW 10 TX10M_PWR 1,RW 9 NWAY_PWR 0,RW 8 Reserved 0, RO 7 MDIX_CNTL 6 5 4 3 2 1 0 46 Description Vendor test select 1 control Vendor test select 2 control Force Signal Detect 1: force SD signal OK in 100M 0: normal SD signal. Vendor test select control Preamble Saving Control 0: when bit 10 is set, the 10BASE-T transmit preamble count is reduced. When bit 11 of register 1DH is set, 12-bit preamble is reduced; otherwise 22-bit preamble is reduced. 1: transmit preamble bit count is normal in 10BASE-T mode 10BASE-T mode Transmit Power Saving Control 1: enable transmit power saving in 10BASE-T mode 0: disable transmit power saving in 10BASE-T mode Auto-negotiation Power Saving Control 1: disable power saving during auto-negotiation period 0: enable power saving during auto-negotiation period Reserved Read as 0, ignore on write MDI/MDIX,RO The polarity of MDI/MDIX value 1: MDIX mode 0: MDI mode AutoNeg_dpbk 0,RW Auto-negotiation Loopback 1: test internal digital auto-negotiation Loopback 0: normal. 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 Reg.14H.bit5 MonSel1 0,RW Vendor monitor select 1 MonSel0 0,RW Vendor monitor select 0 Reserved 0,RW Reserved Force to 0, in application. PD_value 0,RW Power down control value Decision the value of each field Reg.13H. 1: power down 0: normal Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 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 reading 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 reading this register. 8.15 Power Saving Control Register (PSCR) – 1DH Bit 15-12 11 Bit Name RESERVED PREAMBLEX Default 0,RO 0,RW 10 AMPLITUDE 0,RW 9 TX_PWR 0.RW 8-0 RESERVED 0,RO Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Description RESERVED Preamble Saving Control when both bit 10 and 11 of register 14H are set, the 10BASE-T transmit preamble count is reduced. 1: 12-bit preamble is reduced. 0: 22-bit preamble is reduced. Transmit Amplitude Control Disabled 1: when cable is unconnected with link partner, the TX amplitude is reduced for power saving. 0: disable Transmit amplitude reduce function Transmit Power Saving Control Disabled 1: when cable is unconnected with link partner, the driving current of transmit is reduced for power saving. 0: disable transmit driving power saving function RESERVED 47 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 9. FUNCTIONAL DESCRIPTION 9.1 Processor bus and memory management function: When the bit 7 of IMR is cleared, there is a 64K9.1.1 Processor Interface byte memory space in the DM9302 can be accessed. In the general processor mode, the chip selection This configured type of internal memory is used for is just coming from pin CS#. There are only two testing only. The memory write address (register addressing ports through the access of the host FAh/FBh) and the memory read address (register interface. F4h/F5h) represent the physical memory address of One port is the INDEX port and the other is the the DM9302 internal memory. It is noted that after the DATA port. The INDEX port is decoded by the CMD memory had been written by memory write command, pin=0 and the DATA by the CMD pin=1. The contents the switch reset command (bit 6 of register 52h) of the INDEX port are the register address of the should be set before normal switch function operation, DATA port. Before the access of any register, the since the controlled data in internal memory may be address of the register must be saved in the INDEX corrupted. port before. 9.1.2 Direct Memory Access Control The DM9302 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 or 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 8K bytes. And the receive buffer occupies 7.75K bytes. Both the transmit and receive buffer address need not to be programmed instead that they are managed by the DM9302 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 7.75K-byte receive buffer can be treated as a continued logic memory space. The memory address will wrap to address 0 if the end of address is reached. 48 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 DM9302 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 or word mode). Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 9.2 Switch function: 9.2.1 Address Learning The DM9302 has a self-learning mechanism for learning the MAC addresses of incoming packets in real time. DM9302 stores MAC addresses, port number and time stamp information in the Hash-based Address Table. It can learn up to 1K unicast address entry. The switch engine updates address table with new entry if incoming packet’s Source Address (SA) does not exist and incoming packet is valid (non-error and legal length). Besides, DM9302 has an option to disable address learning for individual port. This feature can be set by bit 0 of register 65h 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 DM9302 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 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 DM9302 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 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 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 DM9302 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 Half Duplex Flow Control The DM9302 supports IEEE standard 802.3x flow control frames on both transmit and receive sides. On the receive side, The DM9302 will defer transmitting next normal frames, if it receives a pause frame from link partner. On the transmit side, The DM9302 issues pause frame with maximum pause time when internal resources such as received buffers, transmit queue and transmit descriptor ring are unavailable. Once resources are available, The DM9302 sends out a pause frame with zero pause time allows traffic to resume immediately. 9.2.8 Full Duplex Flow Control The DM9302 supports half-duplex backpressure. The inducement is the same as full duplex mode. When flow control is required, the DM9302 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 DM9302 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 49 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 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 collisions were detected on the first 512 bits of the transmission. 9.2.10 Broadcast Storm Filtering The DM9302 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 DM9302 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 50 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 DM9302 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 (processor port) is selected as “sniffer port”. If a packet is received form port 0 and destined to port 1 after forwarding decision, the DM9302 will forward it to port 1 and processor port 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 processor port is selected as “sniffer port”. If a packet is received from port 0 and predestined to port 1 after forwarding decision, the DM9302 will forward it to port 1 and processor port in the end. (4).Exception The DM9302 has an optional setting that broadcast/multicast packets are not monitored (see bit 4 of register 65h). It’s useful to avoid unnecessary bandwidth. Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 9.2.13 VLAN Support 9.2.13.1 Port-Based VLAN The DM9302 supports port-based VLAN as default, up to 16 groups. Each port has a default VID called PVID (Port VID, see register 6Fh). The DM9302 used LSB 4-bytes of PVID as index and mapped to register B0h~BFh, to define the VLAN groups. Dest. Src. Dest. Src. 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 1 bits port. The DM9302 will remove the tag from the The DM9302 also supports 16 802.1Q-based packet and recalculate CRC before sending it out. VLAN groups, as specified in bit 1 of register 53h. It’s (3). Receive untagged packet and forward to Tag obvious that the tagged packets can be assigned to port. several different VLANs which are determined The DM9302 will insert the PVID tag when an according to the VID inside the VLAN Tag. Therefore, untagged packet enters the port, and recalculate the operation is similar to port-based VLAN. The CRC before delivering it. DM9302 used LSB 4-bytes VID of received packet (4). Receive tagged packet and forward to Tag with VLAN tag and VLAN Group Mapping Register port. (B0h~BFh) to configure the VLAN partition. If the Received packet will forward to destination port destination port of received packet is not same VLAN without modification. group with received port, it will be discarded. 3 bits 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 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 9.2.14 Priority Support The DM9302 supports Quality of Service (QoS) mechanism for multimedia communication such as VoIP and video conferencing. The DM9302 provides three priority classifications: Port-based, 802.1p-based and DiffServ-based priority. See next section for more detail. The DM9302 offers four level queues for transmit on per-port based. The DM9302 provides two packet scheduling algorithms: Weighted Round-Robin Queuing and 51 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus Strict Priority Queuing. 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. 6Dh, it is enabled by default. The DM9302 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. 9.2.14.2 802.1p-Based Priority 802.1p priority can be disabled by bit 2 of register 52 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 9.3 Internal PHY functions 9.3.1 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 9.3.1.1 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. 9.3.1.2 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. Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 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. 9.3.1.3 Parallel to Serial Converter 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 9.3.1.4 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. 9.3.1.5 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. 9.3.1.6 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. 53 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 9.3.1.7 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 54 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 9.3.2 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 9.3.2.1 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. 9.3.2.2 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. Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 9.3.2.3 MLT-3 to NRZI Decoder The DM9302 decodes the MLT-3 information from the Digital Adaptive Equalizer into NRZI data. 9.3.2.4 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. 9.3.2.5 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. 9.3.2.6 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. 9.3.2.7 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. 55 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 9.3.2.8 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. 9.3.5 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. 9.3.6 Auto-Negotiation 9.3.2.9 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. 9.3.3 10Base-T Operation The 10Base-T transceiver is IEEE 802.3u compliant. When the DM9302 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. 9.3.4 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. 56 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. Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 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 DC Input Voltage (VIN) 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 with 100BASE-FX (Power Data utilization rate is 100% Dissipation) Ethernet Link O.K. Fiber Link O.K. Auto-negotiation or cable off Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Min. -0.3 -0.3 -0.3 -0.3 -0.5 -65 0 - Min. 3.135 1.71 3.135 1.71 - Typ. 3.300 1.80 3.300 1.80 90 120 20 50 90 110 40 40 90 120 60 20 80 80 30 40 Max. 3.6 1.95 3.6 1.95 5.5 +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 mA mA mA mA mA mA mA mA mA mA mA mA Conditions Lead-free Device Conditions 1.8VD only 1.8VA only 3.3VD only 3.3VA only 1.8VD only 1.8VA only 3.3VD only 3.3VA only 1.8VD only 1.8VA only 3.3VD only 3.3VA only 1.8VD only 1.8VA only 3.3VD only 3.3VA only 57 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 10.3 DC Electrical Characteristics Symbol Parameter Min. Typ. Max. Unit Inputs VIL Input Low Voltage 0.8 V VIH Input High Voltage 2.0 V IIL Input Low Leakage Current -1 uA IIH Input High Leakage Current 1 uA Outputs VOL Output Low Voltage 0.4 V VOH Output High Voltage 2.4 V Receiver VICM RX+/RX- Common Mode Input 1.8 V Voltage Transmitter VTD100 100TX+/- Differential Output Voltage 1.9 2.0 2.1 V VTD10 10TX+/- Differential Output Voltage 4.0 5 5.6 V ITD100 100TX+/- Differential Output Current │19│ │20│ │21│ mA ITD10 10TX+/- Differential Output Current │40│ │50│ │56│ mA Note: Vcond1 = VCC3 = 3.3V, VCCI = 1.8V, AVDD3 = 3.3V, AVDDI = 1.8V. 58 Conditions Vcond1 Vcond1 VIN = 0.0V, Vcond1 VIN = 3.3V, Vcond1 IOL =4mA IOH = -4mA 100 Ω Termination Across Peak to Peak Peak to Peak Absolute Value Absolute Value Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 10.4 AC characteristics 10.4.1 Power On Reset Timing T1 PWRST# T4 Strap pins T2 EECS T3 CS# T5 Symbol Parameter Min. Typ. Max. Unit Conditions T1 T2 T3 T4 T5 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 1 40 -- 5 -400 4 -- ms ns us ms us - Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 59 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 10.4.2 Processor I/O Read Timing CS#,CMD T1 T2 IOR# T4 T3 SD0~15 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 DM9302 register T4 IOR# invalid to next IOR#/IOW# valid When read DM9302 memory with F0h register T3+T4 IOR# invalid to next IOR#/IOW# valid When read DM9302 memory with F2h register T5 System Data(SD) Delay time T6 IOR# invalid to System Data(SD) invalid *1 : the Unit: clk is under the internal system clock 50MHz.(20ns). 60 T6 Min. 5 5 20 2 Typ. Max. Unit ns ns ns Clk *1 4 Clk *1 1 Clk *1 25 10 ns ns Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 10.4.3 Processor I/O Write Timing CS#,CMD IOW# T1 T2 T4 T3 ∫∫ T6 SD0~15 T5 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 DM9302 INDEX port T4 IOW# Invalid to next IOW#/IOR# valid When write DM9302 DATA port T3+T4 IOW# Invalid to next IOW#/IOR# valid When write DM9302 memory T5 System Data(SD) Setup Time T6 System Data(SD) Hold Time *1 : the Unit: clk is under the internal system clock 50MHz.(20ns). Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 Min. 5 5 20 1 Typ. Max. Unit ns ns ns Clk *1 2 Clk *1 1 Clk *1 5 3 ns ns 61 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 10.4.4 EEPROM timing T1 T2 EECS T3 EECK T6 T4 EEDIO T5 Symbol T1 T2 T3 T4 T5 T6 T7 62 Parameter EECS Setup Time EECS Hold Time EECK Frequency EEDIO Setup Time in output state EEDIO Hold Time in output state EEDIO Setup Time in input state EEDIO Hold Time in input state T7 Min. 8 8 Typ. 480 2080 0.38 460 2100 Max. Unit ns ns MHz ns ns ns ns Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 11. PACKAGE INFORMATION 64 Pins LQFP Package Outline Information: Symbol A A1 A2 b b1 c c1 D D1 E E1 e L L1 R1 R2 S θ θ1 θ2 θ3 Min 0.05 1.35 0.17 0.17 0.09 0.09 0.45 0.08 0.08 0.20 o 0 o 0 Dimension in mm Nom 1.40 0.22 0.20 12.00 BSC 10.00 BSC 12.00 BSC 10.00 BSC 0.50 BSC 0.60 1.00 REF o 3.5 o 12 TYP o 12 TYP Max 1.60 0.15 1.45 0.27 0.23 0.20 0.16 0.75 0.20 o 7 - Dimension in inch Min Nom Max 0.063 0.002 0.006 0.053 0.055 0.057 0.007 0.009 0.011 0.007 0.008 0.009 0.004 0.008 0.004 0.006 0.472 BSC 0.394 BSC 0.472 BSC 0.394 BSC 0.020 BSC 0.018 0.024 0.030 0.039 REF 0.003 0.003 0.008 0.008 o o o 0 3.5 7 o 0 o 12 TYP o 12 TYP 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. Preliminary datasheet DM9302-15-DS-P01 July 30, 2009 63 DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus 12. ORDERING INFORMATION Part Number DM9302EP Pin Count 64 Package LQFP (Pb-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 E-MAIL: [email protected] Web: 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. 64 Preliminary datasheet DM9302-15-DS-P01 July 30, 2009