W925EP01 Datasheet, PDF (31/108 Pages) Winbond – 8-BIT CID MICROCONTROLLER

W925EP01/ W925EP01FG
HE: Enable CAS/DTMF high group frequency output.
LE: Enable CAS/DTMF low group frequency output.
L1 L0 H1 H0 SELECTED TONE
HE
xX
0
0
1209Hz
0
x
X
0
1
1336Hz
0
x
X
1
0
1477Hz
1
x
X
1
1
1633Hz
1
0
0
x
X
0
1
x
X
1
0
x
X
1
1
x
X
697Hz
770Hz
852Hz
941Hz
LE
CAS SELECTED
TONE
0
Low
1
2130Hz
0
2750Hz
1
2130Hz &
2750Hz
COMPARATOR REGISTER
Bit:
7
6
5
-
-
-
(initial=00H)
4
3
2
1
0
-
RESC
-
- COMPEN
Mnemonic: COMPR
Address: BBh
RESC:
Result of the comparator. Set when positive analog input voltage is (VPOS)
higher than negative analog input voltage (VNEG) RESC is a read only bit.
COMPEN: COMPEN=0 Disable comparator
COMPEN=1 Enable comparator
IDLE RELEASED CONDITION REGISTER 1
(initial=00H)
Bit:
7
6
5
4
3
2
1
0
-
IRCS1
-
IRCS1 IRCT1 IRCX1 IRCT0 IRCX0
Mnemonic: IRC1
Address: BCh
One of the bits of IRC1 and IRC2 will be set by hardware to record the idle released condition when
the idle mode is released. IRC1 and IRC2 can be set by hardware and can be R/W by software.
IRCS1: Idle mode released by Serial port1 interrupt flag.
IRCS0: Idle mode released by Serial port0 interrupt flag.
IRCT1: Idle mode released by Timer1 interrupt flag.
IRCX1: Idle mode released by external interrupt 1 flag.
IRCT0: Idle mode released by Timer0 interrupt flag.
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Publication Release Date: Apr. 10, 2006
Revision A2