CD2231 Intel Corporation, CD2231 Datasheet - Page 157

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CD2231

Manufacturer Part Number
CD2231
Description
CD2231 Intelligent Two-channel Lan And Wan Communications Controller
Manufacturer
Intel Corporation
Datasheet
9.3
Datasheet
AC Electrical Characteristics
Bus Arbitration
DMA Read
DMA Write
Host Read/Write
Symbol
t
PERIOD
Intelligent Two-Channel LAN and WAN Communications Controller — CD2231
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Period of CLK input (35 MHz maximum)
CLK high to BUSCLK high
CLK high to BUSCLK low
CLK high to BGACK* tristate
BGIN* low to address valid
Address hold after CLK high
CLK high to address tristate
CLK high to ADLD* low
CLK high to ADLD* high
Address setup to ADLD* high
CLK high to AEN*/DATEN*/DATDIR* high
CLK high to AEN*/DATEN*/DATDIR* tristate
CLK high to AEN*/DATEN*/DATDIR* low
Data setup to CLK high
Data hold after CLK high
CLK high to address valid
CLK low to AS* low
CLK high to AS* high
CLK low to DS* low
CLK high to DS* high
DTACK* low setup to CLK high
DTACK* high setup to CLK high (to avoid false termination)
CLK high to data valid
Data hold after CLK high
CLK low to DS* low
CLK high to DS* high
DTACK* low setup to CLK high
DTACK* high setup to CLK high (to avoid false termination)
DS* and CS* low setup to CLK high
(Sheet 1 of 2)
Parameter
1
28.57
MIN
15
10
15
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50
10
50
0
0
7
MAX
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40
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20
157

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