w925e625 ETC-unknow, w925e625 Datasheet - Page 6

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

Pin Description, continued
DTMF/FSK
DH1,DH2
SYMBOL
VLCD1-5
P00-P07
P10-P17
P20-P27
P30-P37
P40-P47
COM31
SEG55
COM0-
VPOS,
SEG0-
VNEG
XIN2
BUZ
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
I
I
I
I
Input pin for sub-oscillator. Connected to 32.768KHz crystal only. Suggest to
add an external capacitor about 10~30Pf to ground (V
the oscillator.
FTE=0, Dual-Tone Multi-Frequency(DTMF) signal output
FTE=1, FSK signal output
Buzzer output pin. If buzzer function is disabled, BUZ pin is in floating state.
Input/Output port0. Port0 data can be bit controlled. The I/O mode is
controlled by P0IO register. Port0 is open drain type when it is configured as
output mode.
Input/Output port1 with pull high resistors. Port1 data can be bit controlled.
The I/O mode is controlled by P1IO register. The P10-P13 and P14-P17
indicates the external interrupt pins(INT2 and INT3)
Input/Output port2 with pull high resistors. Port2 data can be bit controlled.
The I/O mode is controlled by P2IO register.
Input/Output port3 with pull high resistors. Port3 data can be bit controlled.
The I/O mode is controlled by P3IO register. The special function of port3 is
referred to the description of P3 register.
Contents are byte controlled. Pull high and I/O mode can be bit controlled.
The special function of P4 is referred to the description of P4 register.
The comparator V+, V- analog input pins. Share pin with P4.2 and P4.4
Connection terminals for LCD voltage doublers capacitor.
Positive LCD voltage supplies terminals.
LCD segment output pins.
LCD common output pins.
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DESCRIPTION
SS
W925E/C625
) for the accuracy of