am79d2251 Advanced Micro Devices, am79d2251 Datasheet - Page 29

• Manufacturer Part Number: am79d2251
• Description: Dual Intelligent Subscriber Line Audio-processing Circuit Islac
• Manufacturer: Advanced Micro Devices

CS
DIO
DCLK
PCLK
Three-State
TSCA
DRA
DXA
FS
Figure 18. PCM Highway Timing for XE = 0 (Transmit on Negative PCLK Edge))
17
V
V
IH
IL
27
13
V
V
OH
Figure 17. Microprocessor Interface (Output Mode)
OL
31
Data
Valid
V
V
IL
26
IH
24
29
28
V
V
18
OH
OL
First
First
23
Bit
Bit
20
15
32
25
Am79D2251
22
34
Valid
Data
Time Slot Zero, Clock Slot Zero
Second
V
V
IH
Bit
IL
35
14
Valid
Data
19
16
Three-State
30
33
See Note 4
29