am79c974 Advanced Micro Devices, am79c974 Datasheet - Page 16

• Manufacturer Part Number: am79c974
• Description: Pcnettm-scsi Combination Ethernet And Scsi Controller For Pci Systems
• Manufacturer: Advanced Micro Devices

PIN DESIGNATIONS
Quick Reference Pin Description
16
Pin Name
PCI Bus Interface
AD[31:00]
C/BE[3:0]
CLK
DEVSEL
FRAME
GNTA, GNTB
IDSELA, IDSELB
INTA, INTB
IRDY
LOCK
PAR
PERR
REQA, REQB
RST
SERR
STOP
TRDY
ETHERNET SPECIFIC
Board Interface
EECS
EEDI/LNKST
EEDO/LED3
EESK/LED1
SLEEP
XTAL1–2
Attachment Unit Interface (AUI)
CI+/CI–
DI+/DI–
DO+/DO–
10BASE-T Interface
RXD+/RXD–
TXD+/TXD–
TXP+/TXP–
LNKST/EEDI
AMD
Description
Address/Data Bus
Bus Command/Byte Enable
Bus Clock
Device Select
Cycle Frame
Bus Grant
Initialization Device Select
Interrupt
Initiator Ready
Bus Lock
Parity
Parity Error
Bus Request
Reset
System Error
Stop
Target Ready
Microwire Serial PROM Chip Select
Microwire Serial EEPROM Data In/Link Status
Microwire APROM Data Out/LED predriver
Microwire Serial PROM Clock/LED1
Sleep Mode
Crystal Input/Output
AUI Collision Differential Pair
AUI Data In Differential Pair
AUI Data Out Differential Pair
Receive Differential Pair
Transmit Differential Pair
Transmit Pre-distortion Differential Pair
Link Status/Microwire Serial EEPROM Data In
P R E L I M I N A R Y
Am79C974
Type
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
O
O
O
O
O
O
I
I
I
I
I
I
I
I
Driver
OD6
OD6
TDO
TPO
LED
LED
LED
LED
TS3
TS3
TS6
TS6
TS6
TS6
TS6
TS6
TS3
TS6
TS6
DO
NA
NA
NA
NA
O8
NA
NA
NA
NA
NA
# Pins
32
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
1