CD2231

Manufacturer Part NumberCD2231
DescriptionCD2231 Intelligent Two-channel Lan And Wan Communications Controller
ManufacturerIntel Corporation
CD2231 datasheet
 
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Intelligent Two-Channel LAN and WAN Communications Controller — CD2231
9.3
AC Electrical Characteristics
Symbol
t
Period of CLK input (35 MHz maximum)
PERIOD
t
CLK high to BUSCLK high
1
t
CLK high to BUSCLK low
2
Bus Arbitration
t
CLK high to BGACK* tristate
11
t
BGIN* low to address valid
12
t
Address hold after CLK high
13
t
CLK high to address tristate
14
t
CLK high to ADLD* low
15
t
CLK high to ADLD* high
16
t
Address setup to ADLD* high
17
t
CLK high to AEN*/DATEN*/DATDIR* high
18
t
CLK high to AEN*/DATEN*/DATDIR* tristate
19
t
CLK high to AEN*/DATEN*/DATDIR* low
20
DMA Read
t
Data setup to CLK high
21
t
Data hold after CLK high
22
t
CLK high to address valid
23
t
CLK low to AS* low
24
t
CLK high to AS* high
25
t
CLK low to DS* low
26
t
CLK high to DS* high
27
t
DTACK* low setup to CLK high
28
t
DTACK* high setup to CLK high (to avoid false termination)
29
DMA Write
t
CLK high to data valid
31
t
Data hold after CLK high
32
t
CLK low to DS* low
33
t
CLK high to DS* high
34
t
DTACK* low setup to CLK high
35
t
DTACK* high setup to CLK high (to avoid false termination)
36
Host Read/Write
t
DS* and CS* low setup to CLK high
41
Datasheet
Parameter
(Sheet 1 of 2)
1
MIN
MAX
28.57
20
20
25
40
0
25
25
20
15
25
25
25
10
15
30
25
20
25
20
10
50
40
0
25
20
10
50
7
157