w925e625 ETC-unknow, w925e625 Datasheet - Page 23

• Manufacturer Part Number: w925e625
• Description: 8-bit Cid Microcontroller
• Manufacturer: ETC-unknow

CIDE: Global enable CID function. Low to disable all functions of CID parts.
FSKE: Enable FSK demodulation circuit.
CASE: Enable Dual Tone Alert Signal detection circuit.
DTMFE: Enable DTMF demodulation circuit.
FSK DATA REGISTER
FD7-0:
DTMF DATA REGISTER
CASH:
CASL:
DTMFH: Set when DTMF high tone is detected.
DTMFL: Set when DTMF low tone is detected.
DD3-0:
DTMF PRESENT TIME REGISTER
The clock period of guard-time timer is 0.8582Ms. The default DTMF present time is 21.45Ms.
DPT7-0: The pre-set data register for counting DTMF present time. When DTMF is detected(Est low
DTMF ABSENT TIME REGISTER
The clock period of guard-time timer is 0.8582Ms. The default DTMF absent time is 21.45Ms.
8 bits FSK demodulated data.
Set when Dual Tone Alert Signal high tone is detected.
Set when Dual Tone Alert Signal low tone is detected.
4 bits DTMF demodulated data.
to high), the guard timer starts to up-count from 00H. As the guard timer is equal to the value
of DTMFPT, the exist of the DTMF is accepted. Est changes to low state to stop and reset
the counter.
Mnemonic: FSKDR
Mnemonic: DTMFDR
Mnemonic: DTMFPT
Mnemonic: DTMFAT
Bit:
Bit:
Bit:
Bit:
CASH
DPT7
DAT7
FD7
7
7
7
7
CASL
DPT6
DAT6
FD6
6
6
6
6
DTMFH DTMFL
DPT5
DAT5
FD5
5
5
5
5
- 23 -
DPT4
DAT4
FD4
4
4
4
4
(initial=XXH)
DPT3
DAT3
DD3
FD3
Publication Release Date: July 4, 2005
3
3
3
3
Address: B4h
Address: B6h
Address: B7h
Address: B5h
(initial=XXH)
(initial=19H)
(initial=19H)
DPT2
DAT2
DD2
FD2
2
2
2
2
W925E/C625
DPT1
DAT1
DD1
FD1
1
1
1
1
Revision A10
DPT0
DAT0
DD0
FD0
0
0
0
0