91C94 查看數據表（PDF） - SMSC -> Microchip

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91C94

ISA/PCMCIA Single-Chip Ethernet Controller with RAM

SMSC -> Microchip 

PIN NUMBER

VTQFP/

QFP TQFP

NAME

67

65 Reset

27

25 Address

Latch

19

17 Interrupt

20

18

22,23 20,21 Interrupt

SYMBOL

RESET

BALE/nWE

BUFFER

TYPE

IS with

pullup

IS with

pullup

DESCRIPTION

Input - Active high Reset. This input is

not considered active (except in

powerdown mode) unless it is active

for at least 100ns to filter narrow

glitches

ISA - Input - Address strobe. For

systems that require address latching.

The falling edge of BALE latches

address lines and nSBHE

INTR0/

nIREQ

PCMCIA - Write Enable input. For

writing into COR and CSR registers as

well as attribute memory space

O24 ISA - Active high interrupt signal. The

interrupt line selection is determined by

the value of INT SEL1-0 bits in the

Configuration Register. This interrupt is

tri-stated when not selected

INTR1/

nINPACK

PCMCIA - Active low interrupt request

output

O24 ISA - Output - Active high interrupt

signal. The interrupt line selection is

determined by the value of INT SEL1-0

bits in the Configuration Register. This

interrupt is tri-stated when not selected

INTR2-3

PCMCIA - Output asserted to

acknowledge read cycles when the

card is enabled

O24 ISA - Outputs - Active high interrupt

signals. The interrupt line selection is

determined by the value of INT SEL1-0

bits in the Configuration Register.

These interrupts are tri-stated when not

selected

10

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