Yamaha CD-C600 Service Manual page 30

CD-C600
Pin No.
1, 46, 47, 48
18
17
37
38
2
3
4
6
7
30
Function Name I/O
Port 7 I/O • 4-bit I/O port
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
P73 : INT3 input (input with noise filter)/timer 0 event input/timer 0H capture input/IR
AD converter input ports : AN8 (P70), AN9 (P71)
Interrupt acknowledge types
INT0
INT1
INT2
INT3
PWM0 I/O PWM0, PWM1 output port
PWM1 General-purpose input port
• Pin functions
PWM0 : Audio interface master clock output
PWM1 : Audio interface master clock input
UHD- I/O USB data I/O pin UHD-/general-purpose I/O port
UHD+ I/O USB data I/O pin UHD+/general-purpose I/O port
RES I Reset pin
XT1 I • 32.768 kHz crystal oscillator input
• Pin functions
General-purpose input port
AD converter input ports : AN10
Must be connected to VDD1 when not to be used
XT2 I/O • 32.768 kHz crystal oscillator output
• Pin functions
General-purpose I/O
AD converter input port : AN11
Must be set for oscillation and kept open if not to be used
CF1 I Ceramic/crystal resonator input
CF2 I Ceramic/crystal resonator output
Detail of Function
speed clock counter input
remote control receiver input
Rising
Rising Falling
Falling
enable enable disable
enable enable disable
enable enable enable
enable enable enable
and H level L level
enable enable
enable enable
disable disable
disable disable
Option
No
No
No
No
No
No
No
No
No