BT8375 CONEXANT [Conexant Systems, Inc], BT8375 Datasheet - Page 287

• 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 5-10. Motorola Synchronous Read Cycle
Table 5-13. Motorola Synchronous Read Cycle
N8370DSE
Symbol
1
2
3
4
5
6
7
8
9
DTACK*
AD[7:0]
MCLK
A[8:0]
R/W*
AS*
CS*
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
10
15
—
5
0
0
0
5.0 Electrical/Mechanical Specifications
Read Data
8
0.5/MCLK +20
Maximum
—
—
—
15
10
—
25
—
5
5.5 MPU Interface Timing
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
5-13