cx28394 Conexant Systems, Inc., cx28394 Datasheet - Page 260

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

4.0 Electrical/Mechanical Specifications
4.5 MPU Interface Timing
Figure 4-9. Motorola Synchronous Read Cycle
Table 4-12. Motorola Synchronous Read Cycle
4-12
Symbol
1
2
3
4
5
6
7
8
9
DTACK*
AD[7:0]
MOTO* = 0, SYNCMD = 1
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
AS*, DS*, CS*, R/W* setup to MCLK high
DS* sampled low to AD[7:0] valid
CS* or DS* high to AD[7:0] invalid/three-state
MCLK high to AS* high
Address
1
2
3
Parameter
4
6
Conexant
7
9
1/MCLK + 12
Minimum
15
15
—
2
0
0
0
2
Read Data
Quad/x16/Octal—T1/E1/J1 Framers
8
0.5/MCLK +20
CX28394/28395/28398
Maximum
—
—
—
10
10
—
30
—
5
Units
100054E
ns
ns
ns
ns
ns
ns
ns
ns
ns