cx28394 Conexant Systems, Inc., cx28394 Datasheet - Page 258

• 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 4-7. Intel Asynchronous Read Cycle
Table 4-10. Intel Asynchronous Read Cycle
4-10
Symbol
1
2
3
4
5
6
7
8
9
MOTO* = 1, SYNCMD = 0
AD[7:0]
WR*
ALE
A[8]
RD*
CS*
ALE high pulse width
A[8], AD[7:0] Address setup to ALE low
A[8], AD[7:0] Address hold after ALE low
ALE low to RD* and CS* both low
WR* high setup to RD* and CS* both low
RD* and CS* both low to AD[7:0] valid
RD* or CS* high to AD[7:0] invalid/three-state
WR* high hold after RD* or CS* high
RD* or CS* high to next ALE
Address
Address
1
2
Parameter
3
5
4
Conexant
6
Minimum
Read Data
15
—
2
0
0
0
0
0
5
7
8
Quad/x16/Octal—T1/E1/J1 Framers
9
CX28394/28395/28398
Maximum
—
—
—
—
—
80
25
—
—
Units
100054E
ns
ns
ns
ns
ns
ns
ns
ns
ns