27
CD-S300
CD-S30
0
Pin No.
Function Name
I/O
Detail of Function
Option
1, 46, 47, 48
Port 7
I/O • 4-bit I/O port
No
P70 to P73
• I/O specifiable in 1-bit units
• Pull-up resistors can be turned on and off in 1-bit units
• Pin functions
P70 : INT0 input/HOLD reset input/timer 0L capture input/watchdog timer output
P71 : INT1 input/HOLD reset input/timer 0H capture input
P72 : INT2 input/HOLD reset input/timer 0 event input/timer 0L capture input/high
speed clock counter input
P73 : INT3 input (input with noise filter)/timer 0 event input/timer 0H capture input/IR
remote control receiver input
AD converter input ports : AN8 (P70), AN9 (P71)
Interrupt acknowledge types
18
PWM0
I/O PWM0, PWM1 output port
No
17
PWM1
General-purpose input port
• Pin functions
PWM0 : Audio interface master clock output
PWM1 : Audio interface master clock input
37
UHD-
I/O USB data I/O pin UHD-/general-purpose I/O port
No
38
UHD+
I/O USB data I/O pin UHD+/general-purpose I/O port
No
2
RES
I
Reset pin
No
3
XT1
I
• 32.768 kHz crystal oscillator input
No
• Pin functions
General-purpose input port
AD converter input ports : AN10
Must be connected to VDD1 when not to be used
4
XT2
I/O • 32.768 kHz crystal oscillator output
No
• Pin functions
General-purpose I/O
AD converter input port : AN11
Must be set for oscillation and kept open if not to be used
6
CF1
I
Ceramic/crystal resonator input
No
7
CF2
I
Ceramic/crystal resonator output
No
Rising
Falling
Rising
and
Falling
H level
L level
INT0
enable
enable
disable
enable
enable
INT1
enable
enable
disable
enable
enable
INT2
enable
enable
enable
disable
disable
INT3
enable
enable
enable
disable
disable