SC2200 NSC [National Semiconductor], SC2200 Datasheet - Page 386

• Manufacturer Part Number: SC2200
• Description: Thin Client On a Chip
• Manufacturer: NSC [National Semiconductor]

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Electrical Specifications
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RDYA2
IOCSA
IOCSH
AR1
AR2
AR3
RA
RVDS
RDH
HZ
AW1
AW2
AW3
WA
DV1
DV2
DV3
WTR
DH
DF
WDAR
Parameter
IOCHRDY valid after IOR#/MEMR#/
RD#/DOCR#/IOW#/MEMW#/WR#/
DOCW# FE
IOCS[1:0]#/DOCS#/ROMCS# driven
active from A[23:0] valid
IOCS[1:0]#/DOCS#/ROMCS# valid
Hold after A[23:0] invalid
A[23:0]/BHE# valid before
MEMR#/DOCR# active
A[23:0]/BHE# valid before IOR#
active
A[23:0]/BHE# valid before
MEMR#/DOCR#/IOR# active
A[23:0]/BHE# valid Hold after
MEMR#/DOCR#/IOR# inactive
Read data D[15:0] valid setup before
MEMR#/DOCR#/IOR# inactive
Read data D[15:0] valid Hold after
MEMR#/DOCR#/IOR# inactive
Read data floating after
MEMR#/DOCR#/IOR# inactive
A[23:0]/BHE# valid before
MEMW#/DOCW# active
A[23:0]/BHE# valid before IOW#
active
A[23:0]/BHE# valid before
MEMW#/DOCW#/IOW# active
A[23:0]/BHE# valid Hold after
MEMW#/DOCW#/IOW# invalid
Write data D[15:0] valid after
MEMW#/DOCW# active
Write data D[15:0] valid after IOW#
active
Write data D[15:0] valid after IOW#
active
TRDE# inactive after
MEMW#/DOCW#/IOW# inactive
Write data D[15:0] after
MEMW#/DOCW#/IOW# inactive
Write data D[15:0] goes TRI-STATE
after MEMW#/DOCW#/IOW# inactive
Write data D[15:0] after read
MEMR#/DOCR#/IOR#
Table 8-21. Sub-ISA Timing Parameters (Continued)
(Continued)
Width
(Bits)
8, 16
8, 16
8, 16
8, 16
8, 16
8, 16
8, 16
8, 16
8, 16
8, 16
8, 16
8, 16
Bus
16
16
16
16
16
8
8
8
8
386
M, I/O
M, I/O
M, I/O
M, I/O
M, I/O
M, I/O
M, I/O
M, I/O
M, I/O
M, I/O
M, I/O
M, I/O
M, I/O
M, I/O
Type
I/O
I/O
I/O
I/O
M
M
M
(ns)
Min
100
100
100
100
-23
34
25
24
34
25
40
40
20
45
41
0
0
Max
(ns)
366
105
34
41
Figure
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8-20
8-19
8-19
8-19
8-19
8-19
8-19
8-19
8-20
8-20
8-20
8-20
8-20
8-20
8-20
8-20
8-20
8-20
8-19
Comments
Revision 3.0