NSC MNDP83950B-VQB Repeater interface controller Datasheet

MICROCIRCUIT DATA SHEET
Original Creation Date: 10/24/94
Last Update Date: 02/24/99
Last Major Revision Date: 10/24/94
MNDP83950B-VQB REV 0B0
REPEATER INTERFACE CONTROLLER
General Description
The "RIC" may be used to implement an IEEE 802.3 multiport repeater unit including the
functions defined by the repeater, segment partition, and jabber lockup protection state
machines.
The RIC has an on-chip phase-locked-loop (PLL) for Manchester data decoding, a Manchester
encoder, and an Elasticity Buffer for preamble regeneration.
Each RIC can connect to 13 cable segments via its network interface ports. One port is
fully AUI compatible and is able to connect to an external MAU using the maximum lenght of
AUI cable. The other 12 ports have integrated 10BASE-T transceivers. These transceiver
functions may be bypassed so that the RIC may be used with external transceivers. In
addition, large repeater units, containing several hundred ports may be constructed by
cascading RICs together over an Inter-RIC bus.
The RIC is configurable for specific applications. It provides port status information for
LED array displays and a simple interface for system processors. The RIC posseses
multi-function counter and status flag arrays to facilitate network statistics gathering.
A serial interface, known as the Management Interface is available for the collection of
data in Managed Hub applications.
Industry Part Number
NS Part Numbers
DP83950BVQB
DP83950BVQB-MPC
Prime Die
DP63950
Processing
Subgrp Description
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8A
8B
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Quality Conformance Inspection
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Static tests at
Static tests at
Static tests at
Dynamic tests at
Dynamic tests at
Dynamic tests at
Functional tests at
Functional tests at
Functional tests at
Switching tests at
Switching tests at
Switching tests at
Temp ( oC)
+25
+85
-40
+25
+85
-40
+25
+85
-40
+25
+85
-40
MICROCIRCUIT DATA SHEET
MNDP83950B-VQB REV 0B0
Features
- Compliant with the IEEE 802.3 Repeater Specification
- 13 network connections (ports) per chip
- Selectable on-chip twisted-pair transceivers
- Cascadable for large hub applications
- Compatible with AUI compliant transceivers
- On-chip Elasticity Buffer, Manchester encoder and decoder
- Separate partition state machines for each port
- Provides port status information for LED displays including:
receive, collision,
partition and link status
- Power-up configuration options:
Repeater and Partition Specifications, Transceiver interface, Status Display, Processor
Operations
- Simple processor interface for repeater management and port disable
- On-chip Event Counters and Event Flag Arrays
- Serial Management Interface to combine packet and repeater status information together
- CMOS process for low power dissipation
- Single 5V supply
2
MICROCIRCUIT DATA SHEET
MNDP83950B-VQB REV 0B0
(Absolute Maximum Ratings)
Supply Voltage(Vcc)
-0.3V to 7.0V
DC Input Voltage(Vin)
-0.3V to Vcc +0.3V
DC Output Voltage(Vout)
-0.3V to Vcc +0.3V
Storage Temperature(Tstg)
-40 C to +150 C
Power Dissipation(Pd)
2W
Lead Temperature(Tl)
(Soldering, 10 seconds)
260 C
Recommended Operating Conditions
Vcc
Supply Voltage
4.75V min
3
5.25V max
MICROCIRCUIT DATA SHEET
MNDP83950B-VQB REV 0B0
Electrical Characteristics
DC: PROCESSOR,LED,TWISTED PAIR,INTER-RIC & MGMT. INTERFACES
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: Vcc = 5V +5%
SYMBOL
PARAMETER
CONDITIONS
NOTES
Voh
Minimum High
Level Output
Voltage
Ioh = -8mA
Vol
Minimum Low Level
Output Voltage
Iol = 8mA
Vih
Minimum High
Level Input
Voltage
Vil
Maximum Low Level
Input Voltage
Iin
Input Current
Vin = Vcc OR GND
Ioz
Maximum TRI-STATE
Output Leakage
Current
Vout = Vcc or GND
Icc
Average Supply
Current
Vin = Vcc or GND, Vcc = 5.25V
PINNAME
MIN
MAX
3.5
UNIT
SUBGROUPS
V
1, 2,
3
V
1, 2,
3
V
1, 2,
3
0.8
V
1, 2,
3
-1.0
1.0
uA
1, 2,
3
-10
10
uA
1, 2,
3
380
mA
1, 2,
3
0.4
2.0
DC PARAMETERS: AUI
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: Vcc = 5V +5%
Vod
Differential
Output
Voltage(TX+)
Vds
Differential
Squelch Threshold
(RX+, CD+)
78 Ohms Termination and 270 Ohms
Pulldowns
PORT 1
+550
+1200
mV
1, 2,
3
3, 5 PORT 1
-175
-300
mV
1, 2,
3
DC PARAMETERS: PSEUDO AUI
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: Vcc = 5V +5%
Vpod
Differential
Output Voltage
(TX+)
Vpds
Differential
Squelch Threshold
(RX+, CD+)
270 Ohms Termination and 1K Ohm
Pulldowns
4
3, 5 PORTS
2-13
+450
+1200
mV
1, 2,
3
3, 5 PORTS
2-13
-175
-300
mV
1, 2,
3
MICROCIRCUIT DATA SHEET
MNDP83950B-VQB REV 0B0
Electrical Characteristics
DC PARAMETERS: TWISTED PAIR
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: Vcc = 5V +5%
SYMBOL
Vron
PARAMETER
Minimum Squelch
Threshold
CONDITIONS
NOTES
PINNAME
Normal Mode
PORTS
2-13
Reduced Mode
PORTS
2-13
UNIT
SUBGROUPS
MIN
MAX
+300
+585
mV
1, 2,
3
+340
mV
1, 2,
3
AC PARAMETERS
(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: Vcc = 5V +5%, Cl = 50pF, Vil(TTL) = 0V, Vih(TTL) = 3V
T1
ACKI low to
ACKO Low
2, 3
24
nS
9, 10,
11
T2
ACKI High to
ACKO High
2, 3
21
nS
9, 10,
11
T3a
RX Active to
ACKO Low
3, 4 AUI &
PSEUDO
AUI
66
nS
9, 10,
11
T4a
RX Inactive to
ACKO High
3, 4 AUI &
PSEUDO
AUI
325
nS
9, 10,
11
T5a
RX Active to
ACTNd Active
3, 4 AUI &
PSEUDO
AUI
105
nS
9, 10,
11
T6a
RX Inactive to
ACTNd Inactive
3, 4 AUI &
PSEUDO
AUI
325
nS
9, 10,
11
T3t
RX Active to
ACKO Low
4
TWISTED
PAIR
ONLY
240
nS
9, 10,
11
T4t
RX Inactive to
ACKO High
4
TWISTED
PAIR
ONLY
255
nS
9, 10,
11
T5t
RX Active to
ACTNd Active
4
TWISTED
PAIR
ONLY
270
nS
9, 10,
11
T6t
RX Inactive to
ACTNd Inactive
4
TWISTED
PAIR
ONLY
265
nS
9, 10,
11
T15a
ACTNd Active to
TX Active
3,
AUI &
4, 5 PSEUDO
AUI
585
nS
9, 10,
11
T15t
ACTNd Active to
TX Active
4, 5 TWISTED
PAIR
ONLY
790
nS
9, 10,
11
5
MICROCIRCUIT DATA SHEET
MNDP83950B-VQB REV 0B0
Electrical Characteristics
AC PARAMETERS(Continued)
(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: Vcc = 5V +5%, Cl = 50pF, Vil(TTL) = 0V, Vih(TTL) = 3V
SYMBOL
PARAMETER
CONDITIONS
NOTES
PINNAME
MIN
AUI &
PSEUDO
AUI
UNIT
SUBGROUPS
65
nS
9, 10,
11
MAX
T30a
CD Active to
ANYXN Active
3
T31a
CD Inactive to
ANYXN Inactive
3,
AUI &
6, 7 PSEUDO
AUI
400
nS
9, 10,
11
T32a
CD Active to COLN
Active
3, 8 AUI &
PSEUDO
AUI
55
nS
9, 10,
11
T33a
CD Inactive to
COLN Inactive
3
215
nS
9, 10,
11
T39
COLN Active to
Start of JAM
3
400
nS
9, 10,
11
T40
COLN Inactive to
End of JAM
3, 9
800
nS
9, 10,
11
T30t
Collision Active
to ANYXN Active
3
TWISTED
PAIR
ONLY
800
nS
9, 10,
11
T31t
Collision
Inactive to ANYXN
Inactive
3, 6 TWISTED
PAIR
ONLY
400
nS
9, 10,
11
T34
ANYXN Active Time
96
T35
ANYXN Inactive to
TX to all
inactive
120
T38
ANTXN Active to
Start of Jam
T36
ACTN Inactive to
TX Inactive
3
T37
ANYXN Inactive to
TX "One Port
Left" Inactive
3
T101
IRC Output High
Time
T102
AUI &
PSEUDO
AUI
Bits 9, 10,
11
180
nS
9, 10,
11
400
nS
9, 10,
11
415
nS
9, 10,
11
120
180
nS
9, 10,
11
3,
10
45
55
nS
9, 10,
11
IRC Output Low
Time
3,
10
45
55
nS
9, 10,
11
T103
IRC Output Cycle
Time
3,
10
90
110
nS
9, 10,
11
T104
ACTNd Active to
PKEN Active
3,
10
555
nS
9, 10,
11
6
MICROCIRCUIT DATA SHEET
MNDP83950B-VQB REV 0B0
Electrical Characteristics
AC PARAMETERS(Continued)
(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: Vcc = 5V +5%, Cl = 50pF, Vil(TTL) = 0V, Vih(TTL) = 3V
SYMBOL
PARAMETER
CONDITIONS
NOTES
PINNAME
MIN
MAX
SUBGROUPS
nS
9, 10,
11
T105
ACTNd Active to
IRE Active
3,
10
T106
IRE Output Active
to IRC Active
3,
10
1.8
uS
9, 10,
11
T107
IRD Output Valid
from IRC
3,
10
10
nS
9, 10,
11
T108
IRD Output Stable
Valid Time
3,
10
75
nS
9, 10,
11
T109
IRC Output High
to IRE Inactive
3,
10
30
nS
9, 10,
11
T110
Number of IRCs
after IRE
Inactive
3,
10
5
Clks 9, 10,
11
T111
IRC Input High
Time
3
20
nS
9, 10,
11
T112
IRC Input Low
Time
3
20
nS
9, 10,
11
T114
IRD Input Setup
to IRC
3
5
nS
9, 10,
11
T115
IRD Input Hold
from IRC
3
10
nS
9, 10,
11
T116
IRC Input High to
IRE Inactive
3
10
90
nS
9, 10,
11
T50
MRXC High Time
3,
11
45
55
nS
9, 10,
11
T51
MRXC Low Time
3,
11
45
55
nS
9, 10,
11
T52
MRXC Cycle Time
3,
11
90
110
nS
9, 10,
11
T53
ACTNd Active to
MEN Active
3,
11
725
nS
9, 10,
11
T54
ACTNd Active to
MCRS Active
3,
11
730
nS
9, 10,
11
T55
MRXD Setup
3,
11
35
nS
9, 10,
11
T56
MRXD Hold
3,
11
40
nS
9, 10,
11
T57
MRXC Low to MCRS
Inactive
3,
11
-5
6
nS
9, 10,
11
T58
MCRS Inactive to
MEN Low
3,
11
510
nS
9, 10,
11
7
560
UNIT
70
MICROCIRCUIT DATA SHEET
MNDP83950B-VQB REV 0B0
Electrical Characteristics
AC PARAMETERS(Continued)
(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: Vcc = 5V +5%, Cl = 50pF, Vil(TTL) = 0V, Vih(TTL) = 3V
SYMBOL
PARAMETER
CONDITIONS
NOTES
PINNAME
MIN
MAX
SUBGROUPS
T59
Min Number of
MRXCs after MCRS
Inactive
3,
11
5
T60
PCOMP Pulse Width
3,
11
20
nS
9, 10,
11
T61
Data Setup
10
nS
9, 10,
11
T62
Data Hold
10
nS
9, 10,
11
T63
MLOAD Active to
BUFEN Active
35
nS
9, 10,
11
T64
MLOAD Inactive to
BUFEN Inactive
35
nS
9, 10,
11
T65
MLOAD Width
800
nS
9, 10,
11
T66
Strobe Address
Setup
80
115
nS
9, 10,
11
T67
Strobe Data Setup
35
65
nS
9, 10,
11
T68
Strobe Data Hold
135
165
nS
9, 10,
11
T69
Strobe Width
30
65
nS
9, 10,
11
T70
CDEC Pulse Width
20
100
nS
9, 10,
11
T71
CDEC to CDEC
Width
200
nS
9, 10,
11
T80
Read Address
Setup
12
0
nS
9, 10,
11
T81
Read Address Hold
12
0
nS
9, 10,
11
T82
Read Active to
BUFEN Active
12
95
345
nS
9, 10,
11
T83
Read Inactive to
BUFEN Inactive
12
35
nS
9, 10,
11
T84
Read Active to
Data Invalid
12
245
nS
9, 10,
11
T85
Read Data Hold
12
75
nS
9, 10,
11
T86
Read Active to
RDY Active
12
340
nS
9, 10,
11
8
5
UNIT
585
Clks 9, 10,
11
MICROCIRCUIT DATA SHEET
MNDP83950B-VQB REV 0B0
Electrical Characteristics
AC PARAMETERS(Continued)
(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: Vcc = 5V +5%, Cl = 50pF, Vil(TTL) = 0V, Vih(TTL) = 3V
SYMBOL
PARAMETER
CONDITIONS
NOTES
PINNAME
MIN
MAX
SUBGROUPS
nS
9, 10,
11
T87
Read Inactive to
RDY Inactive
12
T88
Read Width
12
600
nS
9, 10,
11
T90
Write Address
Setup
12,
13,
14,
15
0
nS
9, 10,
11
T91
Write Address
Hold
12,
13,
14,
15
0
nS
9, 10,
11
T92
Write Active to
BUFEN Active
12,
13,
14,
15
95
355
nS
9, 10,
11
T93
Write Inactive to
BUFEN Inactive
12,
13,
14,
15
35
nS
9, 10,
11
T94
Write Active to
Data Valid
12,
13,
14,
15
275
nS
9, 10,
11
T95
Write Data Hold
12,
13,
14,
15
0
nS
9, 10,
11
T96
Write Active to
RDY Active
12,
13,
14,
15
340
585
nS
9, 10,
11
T97
Write Inactive to
RDY Inactive
12,
13,
14,
15
30
nS
9, 10,
11
T98
Write Width
12,
13,
14,
15
nS
9, 10,
11
T99
Write Active to
Data TRI-STATE
12,
13,
14,
15
nS
9, 10,
11
Note 1:
Note 2:
Note 3:
Note 4:
30
UNIT
600
350
The operation in Reduced Mode is not guaranteed below 300 mV.
Timing Valid with no receive or collision activities
The Inter-RIC and Management Busses use active high signals, active low signals may
also be used.
ACKI assumed high
9
MICROCIRCUIT DATA SHEET
MNDP83950B-VQB REV 0B0
(Continued)
Note 5:
Note 6:
ACTNd and ACTNs are tied together
TX collision extension has already been performed and no other port is driving ANYXN.
Note 7:
Note 8:
Note 9:
Includes TW2
PKEN assumed high
Assuming reception ended before COLN goes inactive. TW2 is included in this
parameter. Assuming ACTNd to ACTNs delay is 0.
In a Multi-RIC system, the PKEN signal is valid only for the first receiving RIC.
The preamble on this bus consists of the following string: 01011
Minimum high time between read/write cycles is 100nS.
Assuming zero propagation delay on external buffer.
The data will always TRI-STATE before BUFEN goes active with a load of 100pF on the
data bus.
When RDY is used, the minimum 600nS write width does not have to be maintained.
Note
Note
Note
Note
Note
10:
11:
12:
13:
14:
Note 15:
10
MNDP83950B-VQB REV 0B0
Burn-in/QCI Electrical End-Point Tests
OP#
Operation description
Sub-Groups
01
Post Burn-In PDA 10%
1,7,9
02
Final Electrical
1,2,3,7,8A,8B,9,10,11
03
Group A
1,2,3,7,8A,8B,9,10,11
04
Subgroup B-4 (For Initial Qual ONLY)
1,7,9
05
Subgroup C-1 (For Initial Qual ONLY)
1,2,3,7,8A,8B,9,10,11
06
Subgroup C-2 (For Initial Qual ONLY)
1,7,9
07
Subgroup D-2 (For Initial Qual ONLY)
1,7,9
08
Subgroup D-3 (For Initial Qual ONLY)
1,2,7,8A,9,10
09
Subgroup D-4 (For Initial Qual ONLY)
1,2,7,8A,9,10
11
MICROCIRCUIT DATA SHEET
MNDP83950B-VQB REV 0B0
Graphics and Diagrams
GRAPHICS#
VUL160ARB
DESCRIPTION
PQFP, JEDEC METRIC, 28x28x3.4MM, 160LD (P/P DWG)
See attached graphics following this page.
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MICROCIRCUIT DATA SHEET
MNDP83950B-VQB REV 0B0
Revision History
Rev
ECN #
0B0
M0003282 02/24/99
Rel Date
Originator
Changes
Rose Malone
Update MDS: MNDP83950B-VQB, Rev. 0A0 to
MNDP83950B-VQB, Rev. 0B0.
13
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