W925EP01 Datasheet, PDF (93/108 Pages) Winbond – 8-BIT CID MICROCONTROLLER

W925EP01/ W925EP01FG
CPE goes off-hook
Tip/Ring
CAS
A
CPE mutes handset & disables keypad
CPE sends
ACK
B
C
D
Mark
E
ASE
CIDF
ALGO
t _REC
t _ABS
CPE unmutes handset and
enable keypad
Message
F
G
...
FSKE
FCD
FDR
FCLK
FDATA
...
A = 75 - 85mS
B = 0 - 100mS
C = 55 - 65mS
D = 0 - 500mS
E = 58 - 75mS
Data
F = depends on data length
G <= 50mS
Figure 6-23 Input and Output Timing of Bellcore Off-hook Data Transmission
- 93 -
Publication Release Date: Apr. 10, 2006
Revision A2