cx28394 Conexant Systems, Inc., cx28394 Datasheet - Page 261

• Manufacturer Part Number: cx28394
• Description: Quad/x16/octal-t1/e1/j1 Framers
• Manufacturer: Conexant Systems, Inc.

CX28394/28395/28398
Quad/x16/Octal—T1/E1/J1 Framers
Figure 4-10. Motorola Synchronous Write Cycle
Table 4-13. Motorola Synchronous Write Cycle
100054E
Symbol
10
11
12
1
2
3
4
5
6
7
8
9
MOTO* = 0, SYNCMD = 1
DTACK*
AD[7:0]
MCLK
A[8:0]
R/W*
CS*
AS*
DS*
AS* high pulse width
A[8:0] Address setup to AS* low
A[8:0] Address hold after AS* low
AS* and CS* low to DTACK* low
AS* or CS* high to DTACK* high
CS* and R/W* low to DS* low
AD[7:0] setup to DS* low
AD[7:0] hold after DS* low
DS* setup to MCLK high
DS* hold after MCLK high
DS* sampled low to data latch (internal)
DS* sampled low to AS* high
Address
1
Write Data
2
Parameter
3
7
4
8
6
9
Conexant
10
12
11
1/2 MCLK + 15
Minimum
15
—
5
0
0
2
2
5
2
5
2
4.0 Electrical/Mechanical Specifications
5
1/MCLK+15
Maximum
—
—
—
10
10
—
—
—
—
—
—
4.5 MPU Interface Timing
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
4-13