CD-C492/492C
– 64 –
ICF1 RH-iX0233AWZZ:System Microcomputer (IX0233AW)
1-2
P00-P01
Input/Output
8-Bit input/output port. Input/output can be specified in 4-bit units
HOLD release input. Port 0 interrupt input
3-10
P10-P17
Input/Output
8-Bit input/output port. Input/output can be specified in 1-bit units
Dual-purpose function
P10: SIO0 data output
P11: SIO0 data input input/bus input/output
P12: SIO0 clock input/output
P13: SIO1 data output
P14: SIO1 data input input/bus input/output
P15: SIO1 clock input/output
P16: BUZ output
P17: Timer 1 output (PWM output)
11
P70
Input/Output
6-Bit input port. Dual-purpose function
P70: INT0 input/HOLD release input/Nch-Tr. Output for watchdog timer
12
RES
Input
Reset terminal
13
XT1/P74
Input
Input terminal for 32.768 KHz crystal oscillator
Connected to VDD when not used
Dual-purpose function
General-purpose input port P74
14
XT2/P75
Output
Output terminal for 32.768 KHz crystal oscillator
Open when not use
Dual-purpose function
General-purpose input port P75
15
VSS1
—
Negative power terninal
16
CF1
Input
Intput terminal for ceramic oscillator
17
CF2
Output
Output terminal for ceramic oscillator
18
VDD1
—
Positive power terninal
19-26
P80-P87
Input
8-Bit input port. Dual-purpose function
AD input port (8 pcs.)
27-29
P71-73
Input
6-Bit input port. Dual-purpose function
P71: INT1 input/HOLD release input
P72: INT2 input/timer 0 event input
P73: INT3 input (input with noise filter)/ timer 0 event input
30-37
S0/PA0-
Input/Output
Segment output terminal for LCD display
S7/PA7
Usable as general-purpose input/output port (PA)
38-45
S8/PB0-
Input/OUtput
Segment output terminal for LCD display
S15PB7
Usable as general-purpose input/output port (PB)
46-53
S16/PC0-
Input/Output
Segment output terminal for LCD display
(53)*
S23/PC7
Usable as general-purpose input/output port (PC)
54-55
S24/PD0-
Input/Output
Segment output terminal for LCD display
S25/PD1
Usable as general-purpose input/output port (PD)
56
VDD2
—
Positive power terninal
57
VSS2
—
Negative power terninal
58-63
S26/PD2-
Input/Output
Segment output terminal for LCD display
S31/PD7
Usable as general-purpose input/output port (PD)
64-71
S32/PE0-
Input/Output
Segment output terminal for LCD display
S39/PE7
Usable as general-purpose input/output port (PE)
72-79
S40/PF0-
Input/Output
Segment output terminal for LCD display
(72)*
S47/PF7
Usable as general-purpose input/output port (PF)
80-82
V1/PL4-
Input
Bias power terminal for LCD drive
V3/PL6
Usable as general-purpose input/output port (PL)
83-86
COM0/PL0-
Input/Output
Common output terminal for LCD display
COM3/PL3
Usable as general-purpose input/output port (PL)
87-88
P30-P31
Input/Output
6-Bit input/output port. Input/output can be specified in 1-bit units
89
VSS3
—
Negative power terninal
90
VDD3
—
Positive power terninal
91-94
P32-P35
Input/Output
6-Bit input/output port. Input/output can be specified in 1-bit units
95-100
P02-P07
Input/Output
8-Bit input/output port. Input/output can be specified in 4-bit units
HOLD release input. Port 0 interrupt input
Port Name
Pin No.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Input/Output
Function