Yamaha MCX-A10 Service Manual page 26

MCX-A10/MCX-SP10
IC3 : HD6417709SF100
32 bit µ-COM (CPU)
Pin No. Pin Name I/O
1 MD1 I
2 MD2 I
3 Vcc-RTC -
4 XTAL2 O
5 EXTAL2 I
6 Vss-RTC -
7 NMI I
8 D2SH_N_INT0 I
9 D2SH_N_INT1 I
10 - I
11 - I
12 PC_N_INT I
13 D31 I/O
14 D30 I/O
15 D29 I/O
16 D28 I/O
17 D27 I/O
18 D26 I/O
19 VssQ -
20 D25 I/O
21 VccQ -
22 D24 I/O
23 D23 I/O
24 D22 I/O
25 D21 I/O
26 D20 I/O
27 Vss -
28 D19 I/O
29 Vcc -
30 D18 I/O
31 D17 I/O
32 D16 I/O
33 VssQ -
34 D15 I/O
35 VccQ -
36 D14 I/O
37 D13 I/O
38 D12 I/O
39 D11 I/O
40 D10 I/O
41 D9 I/O
42 D8 I/O
43 D7 I/O
44 D6 I/O
45 VssQ -
46 D5 I/O
47 VccQ -
48 D4 I/O
49 D3 I/O
50 D2 I/O
51 D1 I/O
52 D0 I/O
53 A0 O
54 A1 O
55 A2 O
26
Function
Clock mode setting
Clock mode setting
Power supply for RTC (+1.7DC)
Crystal oscillator terminal for built-in RTC
Crystal oscillator terminal for built-in RTC
Power supply for RTC (0V)
Non maskable interrupt request
Interrupt request from DSP
Interrupt request from DSP
-
-
Interrupt request from PCMCIA
Data bus
Data bus
Data bus
Data bus
Data bus
Data bus
Power supply for input/output (0V)
Data bus
Power supply for input/output (3.3V)
Data bus
Data bus
Data bus
Data bus
Data bus
Power supply (0V)
Data bus
Power supply (1.7DC)
Data bus
Data bus
Data bus
Power supply for input/output (0V)
Data bus
Power supply for input/output (3.3V)
Data bus
Data bus
Data bus
Data bus
Data bus
Data bus
Data bus
Data bus
Data bus
Power supply for input/output (0V)
Data bus
Power supply for input/output (3.3V)
Data bus
Data bus
Data bus
Data bus
Data bus
Address bus
Address bus
Address bus
Pin No. Pin Name I/O Function
56 A3 O Address bus
57 VssQ - Power supply for input/output (0V)
58 A4 O Address bus
59 VccQ - Power supply for input/output (3.3V)
60 A5 O Address bus
61 A6 O Address bus
62 A7 O Address bus
63 A8 O Address bus
64 A9 O Address bus
65 A10 O Address bus
66 A11 O Address bus
67 A12 O Address bus
68 A13 O Address bus
69 VssQ - Power supply for input/output (0V)
70 A14 O Address bus
71 VccQ - Power supply for input/output (3.3V)
72 A15 O Address bus
73 A16 O Address bus
74 A17 O Address bus
75 A18 O Address bus
76 A19 O Address bus
77 A20 O Address bus
78 A21 O Address bus
79 Vss - Power supply (0V)
80 A22 O Address bus
81 Vcc - Power supply (+1.7DC)
82 A23 O Address bus
83 VssQ - Power supply for input/output (0V)
84 A24 O Address bus
85 VccQ - Power supply for input/output (3.3V)
86 A25 O Address bus
87 N_BS O Bus cycle start signal
88 N_RD O Read strobe
89 N_WE0 O D7 - D0 select signal
90 N_WE1 O D15 - D8 select signal
91 N_WE2 O D23 - D16 select signal
92 N_WE3 O D31 - D24 select signal
93 RD_WR O Read/write
94 N_AUDSYNC O AUD cycle
95 VssQ - Power supply for input/output (0V)
96 N_CS0 O Chip select 0
97 VccQ - Power supply for input/output (3.3V)
98 N_CS2 O Chip select 2
99 N_CS3 O Chip select 3
100 N_CS4 O Chip select 4
101 N_CS5 O Chip select 5
102 N_CE1B O Chip select 6
103 LCD_BL O LCD control signal
104 N_CE2B O Card enable for area 6PCMCIA
105 CKE O CK enable (SDRAM)
106 N_RAS3L O RAS for lower 32M/64M byte address (SDRAM)
107 LED0 O For debugging
108 N_CASL O CAS for lower 32M/64M byte address (SDRAM)
109 VssQ - Power supply for input/output (0V)
110 LINE_MUTE O Mute control signal