Yamaha CDR-S1000 Service Manual page 16

CDR-S1000
IC5 : HD64F3039F18
CPU
NO. PORT Name
26 A4 A4
27 A5 A5
28 A6 A6
29 A7 A7
30 VSS VSS
31 A8 A8
32 A9 A9
33 A10 A10
34 A11 A11
35 A12 A12
36 A13 A13
37 A14 A14
38 A15 A15
39 A16 A16
40 A17 A17
41 A18 A18
42 A19 A19
43 /WAIT N_WAIT
44 MD MD
45 MD1 MD1
46 PHY PHY
47 /STBY /STBY
48 /RES /RES
49 NMI NMI
50 VSS VSS
51 EXTAL EXTAL
52 XTAL XTAL
53 VCC VCC
54 /AS N_AS
55 /RD N_RD
56 /WR N_WR
57 FWE FWE
58 AVSS AVSS
59 AN0 PUI_KEY0
60 AN1 PUI_KEY1
61 AN2 PUI_KEY2
62 AN3 PUI_KEY3
63 AN4 DIR0_VFL_S
64 AN5 PUI_KEY_VR
65 AN6 TEMP
66 AN7 SB_DIR0_O
67 AVCC AVCC
68 /IRQ0 REMOCON
69 /IRQ1 N_INT_CDR
70 TXD1 TXD1
71 RXD1 RXD1
72 /IRQ5 N_INT_USB
73 PA0 SB_DATA
74 PA1 SB_SCK
75 PA2 SB_DIR0
76 PA3 SB_ADA
77 PA4 SB_DIT
78 PA5 SB_EEP
79 PA6 SB_EEP_DATA
80 PA7 CDR_FSCNT
15
I/O Function
O Address bus
O Address bus
O Address bus
O Address bus
GND
O Address bus
O Address bus
O Address bus
O Address bus
O Address bus
O Address bus
O Address bus
O Address bus
O Address bus
O Address bus
O Address bus
O Address bus
I WAIT input
I Setting CPU operation mode
I Setting CPU operation mode
O CPU operation clock output
I Stand-by input
I Resetting input
I NMI input
GND
I Terminal for crystal oscillator
O Terminal for crystal oscillator
+ 5V power
O Address strobe
O READ strobe
O WRITE strobe
I Flash write enable
GND for A/D
I Key input
I Key input
I Key input
I Key input
I Detecting digital input validity flag
I Panel volume data
I Measuring temperature by using thermistor
I Reading data of DIR for SPDIF
+ 5V power for A/D
I External interrupt (Remote control)
I External interrupt (ACDR)
O SCI1 output
I SCI1 input
I External interrupt (USB)
O Three-wire serial data
O Three-wire serial clock
O Chip select of DIR for SPDIF
O Chip select for AD/DA
O Chip select for DIT (Unused)
O EEPROM clock
I/O EEPROM data
I Counting frequency of SPDIF input