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參數(shù)資料
| 型號： | 91C94 |
| 廠商： | SMSC Corporation |
| 英文描述： | ISA/PCMCIA SINGLE CHIP ETHERNET CONTROLLER WITH RAM |
| 中文描述： | 的ISA / PCMCIA的單芯片以太網(wǎng)控制器與RAM |
| 文件頁數(shù)： | 2/120頁 |
| 文件大小： | 447K |
| 代理商： | 91C94 |
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10
PIN NUMBER
QFP
VTQFP/
TQFP
NAME
SYMBOL
BUFFER
TYPE
DESCRIPTION
67
65
Reset
RESET
IS with
pullup
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
27
25
Address
Latch
BALE/nWE
IS with
pullup
ISA - Input - Address strobe. For
systems that require address latching.
The falling edge of BALE latches
address lines and nSBHE
PCMCIA - Write Enable input. For
writing into COR and CSR registers as
well as attribute memory space
19
17
Interrupt
INTR0/
nIREQ
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
PCMCIA - Active low interrupt request
output
20
18
INTR1/
nINPACK
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
PCMCIA
-
Output
asserted
to
acknowledge read cycles when the
card is enabled
22,23
20,21
Interrupt
INTR2-3
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
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