W925EP01 Datasheet, PDF (32/108 Pages) Winbond – 8-BIT CID MICROCONTROLLER

W925EP01/ W925EP01FG
IRCX0: Idle mode released by external interrupt 0 flag.
IDLE RELEASED CONDITION REGISTER 2
(initial=00H)
Bit:
7
-
6
5
4
3
2
1
0
- IRCWDI IRCCOMP IRCDIV IRCCID IRCX3 IRCX2
Mnemonic: IRC2
Address: BDh
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.
IRCWDI: Idle mode released by Watchdog timer interrupt flag.
IRCCOMP: Idle mode released by comparator interrupt flag.
IRCDIV: Idle mode released by Divider interrupt flag.
IRCCID: Idle mode released by CID interrupt flag.
IRCX3: Idle mode released by External Interrupt 3 flag.
IRCX2: Idle mode released by External Interrupt 2 flag.
CAS TONE PRESENT TIME REGISTER
(initial=0FH)
Bit:
7
6
5
4
3
2
1
0
CASPT7 CASPT6 CASPT5 CASPT4 CASPT3 CASPT2 CASPT1 CASPT0
Mnemonic: CASPT
Address: BEh
The clock period of guard-time timer is 0.8582mS. The initial alert tone present time is 12.87mS.
CASPT7-0: The pre-set data register for counting CAS tone present time. When CAS tone is
detected (ALGR: low to high), the guard timer starts to up-count from 00H. As the guard
timer is equal to the value of CASPT, the existence of the CAS tone is accepted. ALGR
changes to low state to stop and reset the counter.
CAS TONE ABSENT TIME REGISTER
(initial=0FH)
Bit:
7
6
5
4
3
2
1
0
CASAT7 CASAT6 CASAT5 CASAT4 CASAT3 CASAT2 CASAT1 CASAT0
Mnemonic: CASAT
Address: BFh
The clock period of guard-time timer is 0.8582mS. The initial alert tone absent time is 12.87mS.
CASAT7-0: The pre-set data register for counting CAS tone absent time. When CAS tone is absent
(ALGR: high to low), the guard timer starts to up-count from 00H. As the guard timer is
equal to the value of CASAT, the finish of CAS tone is recognized. ALGR changes to
high state to stop and reset the counter.
SERIAL PORT CONTROL 1
(initial=00H)
Bit:
7
SF1
6
5
4
3
2
1
0
-
REGON REN1
SFQ
SEDG CLKIO
SIO
Mnemonic: SCON1
Address: C0h
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