CLIENT ST Microelectronics, Inc., CLIENT Datasheet - Page 43

• Manufacturer Part Number: CLIENT
• Description: STPC Client Datasheet / PC Compatible Embeded Microprocessor
• Manufacturer: ST Microelectronics, Inc.

Table 4-8. ISA Bus AC Timing
Note; The signal numbering refers to
Note 4; These timings are extracted from simulations and are not garanteed by testing
Name
10e
13e
18a
18a
11
12
13
13
14
15
22
23
23
23
24
24
4
4
4
4
4
4
4
4
4
4
4
4
11e
4
4
4
4
4
Parameter
SA[19:0] & SBHE valid before IOR#, IOW# asserted
XTALO to IOW# valid
ALE# asserted before ALE# negated
ALE# asserted before MEMR#, MEMW# asserted
ALE# asserted before SMEMR#, SMEMW# asserted
ALE# asserted before IOR#, IOW# asserted
ALE# asserted before AL[23:17]
ALE# asserted before MEMR#, MEMW#, SMEMR#, SMEMW# negated
ALE# negated before LA[23:17] invalid (non compressed)
ALE# negated before LA[23:17] invalid (compressed)
MEMR#, MEMW# asserted before LA[23:17]
MEMR#, MEMW# asserted before MEMR#, MEMW# negated
SMEMR#, SMEMW# asserted before SMEMR#, SMEMW# negated
IOR#, IOW# asserted before IOR#, IOW# negated
MEMR#, MEMW# asserted before SA[19:0]
SMEMR#, SMEMW# asserted before SA[19:0]
11a
11b
11d
13a
13b
13d
14a
14b
15a
15e
22a
22b
23b
23e
23h
23o
24b
24d
24e
11c
13c
24k
23r
24f
23l
24i
24l
24h Memory access to 16 bit ISA Slave Standard cycle
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Memory access to 16 bit ISA Slave - 2BCLK
Memory access to 16 bit ISA Slave - Standard 3BCLK
Memory access to 16 bit ISA Slave - 4BCLK
Memory access to 8 bit ISA Slave - 2BCLK
Memory access to 8 bit ISA Slave - Standard 3BCLK
Memory Access to 16 bit ISA Slave
Memory Access to 8 bit ISA Slave
Memory Access to 16 bit ISA Slave
Memory Access to 8 bit ISA Slave
Non compressed
Compressed
Memory Access to 16 bit ISA Slave- 4 BCLK
Memory Access to 8 bit ISA Slave- Standard Cycle
Memory access to 16 bit ISA Slave.
Memory access to 8 bit ISA Slave.
Memory access to 16 bit ISA Slave Standard cycle
Memory access to 8 bit ISA Slave Standard cycle
Memory access to 16 bit ISA Slave Standard cycle
Memory access to 16 bit ISA Slave Standard cycle
Memory access to 16 bit ISA Slave Standard cycle
Memory access to 8 bit ISA Slave Standard cycle
Memory access to 16 bit ISA Slave Standard cycle
Memory access to 8 bit ISA Slave - 3BLCK
Memory access to 8 bit ISA Slave Standard cycle
Memory access to 8 bit ISA Slave - 7BCLK
Memory access to 16 bit ISA Slave - 4BCLK
Memory access to 8 bit ISA Slave - 3BCLK
Memory access to 8 bit ISA Slave Standard cycle
Table 4-10
Issue 2.2 - October 13, 2000
ELECTRICAL SPECIFICATIONS
14T
14T
Min
15T
15T
11T
11T
13T
13T
10T
10T
10T
10T
10T
10T
10T
10T
2T
2T
2T
2T
2T
2T
1T
2T
2T
2T
2T
2T
9T
9T
9T
9T
9T
9T
Max
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Units
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