CD2231

Manufacturer Part NumberCD2231
DescriptionCD2231 Intelligent Two-channel Lan And Wan Communications Controller
ManufacturerIntel Corporation
CD2231 datasheet
 


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Page 158/178

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CD2231 — Intelligent Two-Channel LAN and WAN Communications Controller
Symbol
t
Reserved
42
t
Reserved
43
t
R/W* setup to CLK high
44
t
CLK high to data valid
45
t
Data setup time to CLK high
46
t
Data hold time after CLK high
47
t
Address setup time to CLK high
48
t
Address hold time after CLK high
49
t
CLK high to DTACK* low (read cycle)
50
t
CLK high to DTACK* low (write cycle)
51
t
(CS* and DS*) low to DATEN*/DATDIR* low
52
t
DS* high to DATEN*/DATDIR* tristate
53
t
DS* high to data bus tristate
54
t
DS* high to DTACK* high-impedance
55
Interrupt Acknowledge
t
CLK high to IACKIN*, DS* setup
61
t
CLK high to data valid
63
t
Address setup to IACKIN* low
64
t
Address hold after IACKIN* high
65
t
CLK high to DTACK* low
66
(IACKIN* and DS*) low and BUSCLK high to
t
DATEN* and DATDIR* low
67
1.This timing assumes the following conditions BGACK* high, DTACK* high, DS* high, and BUSCLK high.
158
Parameter
(Sheet 2 of 2)
MIN
MAX
5
25
6
15
5
15
25
25
28
25
25
25
20
35
0
0
25
40
Datasheet