CX28398 Conexant Systems, CX28398 Datasheet - Page 263
CX28398
Manufacturer Part Number
CX28398
Description
(CX28394 - CX28398) Quad/x16/Octal?T1/E1/J1 Framers
Manufacturer
Conexant Systems
Datasheet
1.CX28398.pdf
(305 pages)
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CX28394/28395/28398
Quad/x16/Octal—T1/E1/J1 Framers
Figure 4-12. Intel Synchronous Write Cycle
Table 4-15. Intel Synchronous Write Cycle
100054E
Symbol
1
2
3
4
5
6
7
8
AD[7:0]
MCLK
MOTO* = 1, SYNCMD = 1
WR*
ALE
A[8]
RD*
CS*
ALE high pulse width
A[8], AD[7:0] Address setup to ALE low
A[8], AD[7:0] Address hold after ALE low
WR*,RD*,CS* setup to MCLK high (start WR cycle)
WR*,RD*,CS* hold after MCLK high
Start WR* cycle to AD[7:0] input data valid
AD[7:0] input data hold after Start WR cycle
Start WR cycle to next ALE high
Address
Address
1
2
Parameter
3
4
Conexant
5
6
7
Write Data
1/MCLK+10
Minimum
1/MCLK+9
8
15
—
2
2
5
5
4.0 Electrical/Mechanical Specifications
1/MCLK–10
Maximum
—
—
—
—
—
—
—
4.5 MPU Interface Timing
Units
ns
ns
ns
ns
ns
ns
ns
ns
4-15
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