Sh7042 (X4409A00) Cpu (Sh-2) - Yamaha DM1000 Service Manual

MB1000

SH7042 (X4409A00) CPU (SH-2)

PIN
NAME I/O
NO.
1 PE14 O
Port E
2 PE15 O
3 VSS I Ground
4 A0 O
5 A1 O
6 A2 O
7 A3 O
8 A4 O
9 A5 O
10 A6 O
11 A7 O
12 A8 O Address bus
13 A9 O
14 A10 O
15 A11 O
16 A12 O
17 A13 O
18 A14 O
19 A15 O
20 A16 O
21 VCC I Power supply +5V
22 A17 O Address bus
23 VSS I Ground
24 PB2//IRQ0 I
25 PB3//IRQ1 I Port B / Interrupt request
26 PB4//IRQ2 I
27 VSS O Ground
28 PB5//IRQ3 I Port B / Interrupt request
29 A18 O
30 A19 O Address bus
31 A20 O
32 PB9 O Port B
33 VSS I Ground
34 /RD O Read
35 /WDTOVF O Watch dog timer overflow
36 /WRH O High write
37 VCC I Power supply +5V
38 /WRL O Low write
39 VSS I Ground
40 /CS1 O
Chip select
41 /CS0 O
42 PA9//IRQ3 I
Port A / Interrupt request
43 PA8//IRQ2 I
44 /CS3 O
Chip select
45 /CS2 O
46 PA5//IRQ1 I Port A / Interrupt request
47 TXD1 O Data transmission
48 RXD1 I Data reception
49 SCKØ I Serial clock
50 TXD0 O Data transmission
51 PA0 I Port A
52 D15 I/O
53 D14 I/O Data bus
54 D13 I/O
55 VSS I Ground
56 D12 I/O Data bus
FUNCTION
PIN
NAME I/O
NO.
57 D11 I/O
58 D10 I/O
Data bus
59 D9 I/O
60 D8 I/O
61 VSS I Ground
62 D7 I/O
63 D6 I/O Data bus
64 D5 I/O
65 VCC I Power supply +5V
66 D4 I/O
67 D3 I/O
68 D2 I/O Data bus
69 D1 I/O
70 D0 I/O
71 VSS I Ground
72 XTAL I Crystal oscillator
73 MD3 I Mode control
74 EXTAL I Crystal oscillator
75 MD2 I Mode control
76 NMI I Non-maskable interrupt request
77 VCC I Power supply +5V
78 MD1 I
Mode control
79 MD0 I
80 PLLVCC I PLL power supply +5V
81 PLLCAP I PLL capacitor
82 PLLVSS I PLL ground
83 PA15 O Port A
84 /RES I Reset
85 PE0 I
86 PE1 I
87 PE2 I Port E
88 PE3 I
89 PE4 I
90 VSS I Ground
91 AN0 I
92 AN1 I
93 AN2 I
Analog input
94 AN3 I
95 AN4 I
96 AN5 I
97 AVSS I Analog ground
98 AN6 I
Analog input
99 AN7 I
100 AVCC I Analog power supply +5V
101 VSS I Ground
102 PE5 O Port E
103 VCC I Power supply +5V
104 PE6 O
105 PE7 O
106 PE8 O Port E
107 PE9 O
108 PE10 O
109 VSS I Ground
110 PE11 O
111 PE12 O Port E
112 PE13 O
DM1000/MB1000/SP1000
MAIN: IC106
FUNCTION
57