BT8375 CONEXANT [Conexant Systems, Inc], BT8375 Datasheet - Page 285

• Manufacturer Part Number: BT8375
• Description: single chip transceivers for T1/E1 and Integrated Service Digital Network (ISDN) primary rate interfaces
• Manufacturer: CONEXANT [Conexant Systems, Inc]

Bt8370/8375/8376
Fully Integrated T1/E1 Framer and Line Interface
Figure 5-8. Intel Asynchronous Read Cycle
Table 5-11. Intel Asynchronous Read Cycle
N8370DSE
MOTO* = 1, SYNCMD = 0, CLKMD = 0
Symbol
1
2
3
4
5
6
7
8
9
AD[7:0]
WR*
ALE
RD*
A[8]
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
10
—
0
0
0
5
0
0
5.0 Electrical/Mechanical Specifications
7
8
9
Maximum
—
—
—
—
—
80
15
—
—
5.5 MPU Interface Timing
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
5-11