w925e625 ETC-unknow, w925e625 Datasheet - Page 24

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

DAT7-0:The pre-set data register for counting DTMF absent time. When DTMF is absent(Est high to
low), the guard timer starts to up-count from 00H. As the guard timer is equal to the value of DTMFAT,
the finish of DTMF is recognized. Est changes to low state to stop and reset the counter.
INTERRUPT PRIORITY
IP.7: This bit is un-implemented and will read high.
PS1: This bit defines the Serial port interrupt priority. PS1 = 1 sets it to higher priority level
PT1: This bit defines the Timer 1 interrupt priority. PT1 = 1 sets it to higher priority level.
PX1: This bit defines the External interrupt 1 priority. PX1 = 1 sets it to higher priority level.
PT0: This bit defines the Timer 0 interrupt priority. PT0 = 1 sets it to higher priority level.
PX0: This bit defines the External interrupt 0 priority. PX0 = 1 sets it to higher priority level.
DTMF GENERATOR REGISTER
LE: Enable low group frequency output.
HE: Enable high group frequency output.
DTGE: Enable dual tone output to DTMF pin.
COMPARATOR REGISTER
L1
Bit:
x
x
x
x
0
0
1
1
Mnemonic: COMPR
Mnemonic: IP
Mnemonic: DTMFG
7
-
Bit:
Bit:
L0
0
1
0
1
x
x
x
x
6
-
7
7
-
-
H1
DTGE
0
0
1
1
x
x
x
x
PS1
6
6
5
-
HE
- 24 -
5
5
-
4
H0
-
0
1
0
1
x
x
x
x
LE
4
4
-
RESC
3
PT1
L1
3
3
REF
SELECTED TONE
Address: BBh
Address: B8h
Address: Bah
(initial=00H)
(initial=00H)
2
PX1
L0
1209Hz
1336Hz
1477Hz
1633Hz
2
2
697Hz
770Hz
852Hz
941Hz
W925E/C625
(initial=00H)
1
-
PT0
H1
1
1
COMPEN
PX0
H0
0
0
0