dp8344b National Semiconductor Corporation, dp8344b Datasheet - Page 128

• Manufacturer Part Number: dp8344b
• Description: Biphase Communications Processor?bcp
• Manufacturer: National Semiconductor Corporation

t
t
t
t
t
SU-WT-LCL
H-WT-LCL
SU-WT-RD
SU-WT-WR
SU-WT-IWR
5 0 Device Specifications
Symbol
ID
1
2
3
3
3
WAIT Falling after LCL Rising to Extend Cycle
(Buffered Read Latched Read Slow Buffered Write
Fast Buffered Write and Latched Write of PC RIC)
WAIT Falling after LCL Rising to Extend Cycle
(Buffered Read Latched Read Slow Buffered Write
Fast Buffered Write and Latched Write of DMEM)
WAIT Falling after LCL Rising to Extend Cycle
(Buffered Read Latched Read Slow Buffered Write
Fast Buffered Write and Latched Write of IMEM)
WAIT Rising after LCL Rising
(Buffered Read Latched Read Slow Buffered Write
Fast Buffered Write and Latched Write of PC RIC) (Note 2)
WAIT Rising after LCL Rising
(Buffered Read Latched Read Slow Buffered Write
Fast Buffered Write and Latched Write of DMEM) (Note 2)
WAIT Rising after LCL Rising
(Buffered Read Latched Read Slow Buffered Write
Fast Buffered Write and Latched Write of IMEM) (Note 2)
WAIT Falling after READ Falling to Extend Cycle
(Buffered Read and Latched Read)
WAIT Falling after WRITE Falling to Extend Cycle
(Slow Buffered Write Fast Buffered Write and Latched Write)
WAIT Falling after IWR Falling to Extend Cycle
(Slow Buffered Write Fast Buffered Write and Latched Write)
TABLE 5-27 Remote Interface WAIT Timing (Note 1)
FIGURE 5-26 Remote Rest Time (Continued)
(f) WR-PEND Rising (Latched Write Mode)
(Continued)
Parameter
128
(n
(n
(n
(n
(n
(n
(n
(n
(n
DW
DW
DW
IW
IW
IW
IW
DW
DW
2T
Formula
T
T
a
a
a
a
a
a
a
a
a
a
)T
)T
1)T
1)T
2)T
1)T
1)T
1)T
2)T
T
T
T
a
a
H
H
a
H
a
a
a
a
a
a
a
a
T
T
a
T
T
T
H
H
T
T
T
T
H
H
H
H
a
a
H
H
H
a
a
a
a
a
a
a
Min
0
0
0
Max
b
b
b
b
b
b
b
b
b
TL F 9336 – H9
28
28
28
27
27
27
32
33
38
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns