5.0 Electrical/Mechanical Specifications
5.5 MPU Interface Timing
Bt8370/8375/8376
Fully Integrated T1/E1 Framer and Line Interface
Figure 5-7. Motorola Asynchronous Write Cycle
MOTO* = 0, SYNCMD = 0, CLKMD = 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 5-10. 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
5-10
Conexant
N8370DSE