CX28394/28395/28398
4.0 Electrical/Mechanical Specifications
Quad/x16/Octal—T1/E1/J1 Framers
4.5 MPU Interface Timing
Figure 4-6. Motorola Asynchronous Write Cycle
MOTO* = 0, SYNCMD = 0
1
AS*
2
9
A[8:0]
CS*
Address
3
8
4
R/W*
7
DS*
5
AD[7:0]
Write Data
6
Table 4-9. Motorola Asynchronous Write Cycle
Symbol
Parameter
AS* high pulse width
Minimum
Maximum
Units
1
2
3
4
5
6
7
8
9
15
5
—
—
—
—
—
—
—
—
—
ns
ns
ns
ns
ns
ns
ns
ns
ns
A[8:0] Address setup to AS* low
A[8:0] Address hold after AS* low
CS* low and R/W* low to DS* low
AD[7:0] setup to DS* low
AD[7:0] hold after DS* low
DS* low pulse width
2
5
0
15
38
38
70
CS*, R/W* hold after DS* low
DS* low to AS* high
100054E
Conexant
4-9
CONEXANT [ CONEXANT SYSTEMS, INC ]
