CX28398 Conexant Systems, CX28398 Datasheet - Page 256

• Manufacturer Part Number: CX28398
• Description: (CX28394 - CX28398) Quad/x16/Octal?T1/E1/J1 Framers
• Manufacturer: Conexant Systems

4.0 Electrical/Mechanical Specifications
4.5 MPU Interface Timing
Figure 4-5. Motorola Asynchronous Read Cycle
Table 4-8. Motorola Asynchronous Read Cycle
4-8
Symbol
1
2
3
4
5
AD[7:0]
A[8:0]
MOTO* = 0, SYNCMD = 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
CS* low and R/W* high, and DS* low to AD[7:0]
valid
CS* high and DS* high, and R/W* low to AD[7:0]
invalid/three-state
4.5 MPU Interface Timing
Address
1
2
Parameter
3
Conexant
4
Read Data
Minimum
15
10
—
5
5
5
Quad/x16/Octal—T1/E1/J1 Framers
CX28394/28395/28398
Maximum
—
—
—
80
20
Units
100054E
ns
ns
ns
ns
ns