AMD Geode SC1200 Data Book page 395

Electrical Specifications
Symbol Parameter
t IOCHRDY valid after IOR#/MEMR#/
RDYA2
RD#/DOCR#/IOW#/MEMW#/WR#/
DOCW# FE
t IOCS[1:0]#/DOCS#/ROMCS# driven
IOCSA
active from A[23:0] valid
t IOCS[1:0]#/DOCS#/ROMCS# valid
IOCSH
hold after A[23:0] invalid
t A[23:0]/BHE# valid before
AR1
MEMR#/DOCR# active
t A[23:0]/BHE# valid before IOR#
AR2
active
t A[23:0]/BHE# valid before
AR3
MEMR#/DOCR#/IOR# active
t A[23:0]/BHE# valid hold after
RA
MEMR#/DOCR#/IOR# inactive
t Read data D[15:0] valid setup before
RVDS
MEMR#/DOCR#/IOR# inactive
t Read data D[15:0] valid hold after
RDH
MEMR#/DOCR#/IOR# inactive
t Read data floating after
HZ
MEMR#/DOCR#/IOR# inactive
t A[23:0]/BHE# valid before
AW1
MEMW#/DOCW# active
t A[23:0]/BHE# valid before IOW#
AW2
active
t A[23:0]/BHE# valid before
AW3
MEMW#/DOCW#/IOW# active
t A[23:0]/BHE# valid hold after
WA
MEMW#/DOCW#/IOW# invalid
t Write data D[15:0] valid after
DV1
MEMW#/DOCW# active
t Write data D[15:0] valid after IOW#
DV2
active
t Write data D[15:0] valid after IOW#
DV3
active
t TRDE# inactive after
WTR
MEMW#/DOCW#/IOW# inactive
t Write data D[15:0] after
DH
MEMW#/DOCW#/IOW# inactive
t Write data D[15:0] goes TRI-STATE
DF
after MEMW#/DOCW#/IOW# inactive
t Write data D[15:0] after read
WDAR
MEMR#/DOCR#/IOR#
AMD Geode™ SC1200/SC1201 Processor Data Book
Table 9-24. Sub-ISA Timing Parameters (Continued)
Bus
Width
(Bits)
8
8, 16
8, 16
16
16
8
8, 16
8, 16
8, 16
8, 16
16
16
8
8, 16
8, 16
8
16
8, 16
8, 16
8, 16
8, 16
Min Max
Type (ns) (ns)
M, I/O 366
M, I/O 34
M, I/O 0
M 34
I/O 100
M, I/O 100
M, I/O 25
M, I/O 24
M, I/O 0
M, I/O 41
M 34
I/O 100
M, I/O 100
M, I/O 25
M 40
I/O 40
I/O -23
M, I/O 20
M, I/O 45
M, I/O 105
M, I/O 41
32579B
Figure Comments
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395