STPCC03 STMicroelectronics, STPCC03 Datasheet - Page 32

• Manufacturer Part Number: STPCC03
• Description: STPC CONSUMER-S DATASHEET- PC COMPATIBLE EMBEDDED MICROPROCESSOR
• Manufacturer: STMicroelectronics

ELECTRICAL SPECIFICATIONS
Figure 4-2 ISA Cycle (ref table Table 4-9 )
Table 4-9. ISA Bus AC Timing
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Note 1; Stands for SMEMR#, SMEMW#, MEMR#, MEMW#, IOR# & IOW#.
Note; The clock has not been represented as it cannot be accuratly represented depending on the ISA Slave mode.
Note; The signal numbering refers to Table 4-2
Note 4; These timings are extracted from simulations and are not garanteed by testing
Name
10e
CONTROL (Note 1)
10
10
11
2
3
9
4
4
4
4
4
4
4
WRITE DATA
READ DATA
IOCHRDY
LA [23:17]
SA [19:0]
IOCS16#
MCS16#
AEN
Parameter
ALE
LA[23:17] valid before ALE# negated
LA[23:17] valid before MEMR#, MEMW# asserted
SA[19:0] & SBHE valid before ALE# negated
SA[19:0] & SBHE valid before MEMR#, MEMW# asserted
SA[19:0] & SHBE valid before SMEMR#, SMEMW# asserted
SA[19:0] & SBHE valid before IOR#, IOW# asserted
XTALO to IOW# valid
10a
10b
10c
10d
11a
11b
3a
3b
4
4
4
4
4
4
4
4
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
Memory access to 16 bit ISA Slave
Memory access to 8 bit ISA Slave
Memory access to 16 bit ISA Slave - 2BCLK
Memory access to 16 bit ISA Slave - Standard 3BCLK
Valid Address
2
Valid AENx
3
12
12
13
9
10
14
Issue 1.1 - October 16, 2000
18
33
22
61
34
Valid Address, SBHE*
37
41
38
47
15
11
42
48
23
23
25
24
VALID DATA
26
26
Min
5T
5T
5T
1T
2T
2T
2T
2T
2T
2T
2T
55
56
54
V.Data
57
29
58
59
27
64
Max
28
28
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Cycles
Units
Cycle
Cycle