W925E625 Datasheet, PDF (17/75 Pages) Winbond – 8-bit CID MICROCONTROLLER

W925E/C625
T0S0-1&T1S0-1: Timer0 & Timer1 clock source mode select bits. These bits determine the timer0 &
timer1 clock source.
T0S1
(T1S1)
0
0
1
T0S0
(T1S0)
0
1
0
Prescale clock
source
Fosc/2²
Fosc/2⁶
Fosc/2¹⁰
1
1
Fs
DIVS: Divider clock source control bit 1:
DIVS = 0 : Fs/2¹³
DIVS= 1 : Fs/2¹⁴
M /S: System clock source control bit :
M /S = 0 : Fosc = XIN1 ( F_M)
M /S = 1 : Fosc = XIN2 ( Fs)
CLOCK CONTROL2
(initial=00H)
Bit:
7
6
5
4
3
2
1
0
ENBUZ BUZSL KT1 KT0
-
-
-
-
Mnemonic: CKCON2
Address: 8Fh
ENBUZ: When ENBUZ=1 the BUZ pin works as buzzer output, otherwise BUZ pin is in floating state.
BUZSL: Buzzer output selection. When BUZSL=0 BUZ is the output of octave tone. When BUZZL=1,
BUZ is the output of key tone.
KT1-0: Key tone frequency sources from divider. When divider is enable, KT1 and KT0 determines
the key tone frequency.
KT1
KT0
KEY TONE FREQUENCY
0
0
Low
0
1
512Hz
1
0
1024Hz
1
1
2048Hz
PORT 1
Bit: 7
6
P1.7 P1.6
5
P1.5
4
P1.4
(initial=FFH,input mode)
3
2
1
0
P1.3 P1.2 P1.1 P1.0
Mnemonic: P1
Address: 90h
P1.7-0: P1 can be selected as input or output mode by the P1IO register, at initial reset, P1IO is set
to 1, so P1 is used as input mode . When P1IO is set to 0, the P1 is used as CMOS output
mode. When P1EF are set and P1IO are set as input mode, P1 can be used as external
interrupt source. The functions are listed below.
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Publication Release Date: July 4, 2005
Revision A10