Yamaha CS6x Service Manual page 13

MN101C027YB (XS711200) CPU
PIN
NAME I/O
NO.
1 S1 I
2 S2 I
3 S3 I
4 S4 I
5 S5 I
6 VREF+ -
7 VDD -
8 OSC2 O
9 OSC1 I
10 VSS -
11 XI I
12 XO O
13 MMOD I
14 RD0 O
15 RXD I
16 D0 O
17 D1 O
18 D2 O
19 D3 O
20 D4 O
21 /RST I
22 D5 O
23 D6 O
24 D7 O
25 D8 O
26 D9 O
27 S6 I
28 S7 I
29 S8 I
30 S9 I
31 S10 I
32 S11 I
MBCG46183-129 (XV833A00) Gate Array
PIN
NAME I/O
NO
1 D5 I/O
2 D6 I/O
3 D7 I/O
4 /IRQ0 I/O
5 /IRQ1 I/O
6 VSS -
7 /IRQ2 I/O
8 /IRQ3 I/O
9 /RD I
10 /WR I
11 /CE I
12 /ASTB I
13 TESTSIO I
14 RX0 I
15 TX0 O
16 RX1 I
17 TX1 O
18 VSS -
19 VDD -
20 RX2 I
21 TX2/BO2 O
22 RX30 I
23 TX30 O
24 RX31 I
FUNCTION
Switch matrix data
Power supply (+5V, analog)
Power supply (+5V)
Crystal oscillator (8MHz)
Crystal oscillator (8MHz)
Ground
Not used
Not used
Memory mode select (Grounded)
Rotary encoder data
MIDI receive data
LED and switch drive data
Reset
LED and switch drive data
Switch matrix data
FUNCTION
Data Bus
Interrupt Request Port 0
Interrupt Request Port 1
Ground
Interrupt Request Port 2
Interrupt Request Port 3
Read Signal Input
Write Signal Input
Chip Enable Input
Address Strobe
(Not used: to ground)
Input with Pull-down Resistor (50k)
Receive Data 0
Transmit Data 0
Receive Data 1
Transmit Data 1
Ground
Power Supply
Receive Data 2
Transmit Data 2
Receive Data 30
Transmit Data 30
Receive Data 31
PIN
NAME I/O
NO.
33 S12 I
34 S13 I
35 S14 I
36 TXD O
37 S15 I
38 S16 I
39 S17 I
40 S18 I
41 L16 O
42 L17 O
43 L18 O
44 L19 O
45 L8 O
46 L9 O
47 L10 O
48 L11 O
49 L12 O
50 L13 O
51 L14 O
52 L15 O
53 L7 O
54 L6 O
55 L5 O
56 L4 O
57 L3 O
58 L2 O
59 L1 O
60 L0 O
61 VREF -
62 AD0 I
63 AD1 I
64 S0 I
PIN
NAME I/O
NO
25 TX31 O
26 RX32 I
27 TX32 O
28 RX33 I
29 TX33 I/O
30 /IC I
31 VSS -
32 XI I
33 VSS -
34 XO I/O
35 A0 I
36 A1 I
37 A2 I
38 A3 I
39 A4 I
40 A5 I
41 CPUCLK I
42 VSS -
43 VDD -
44 D0 I/O
45 D1 I/O
46 D2 I/O
47 D3 I/O
48 D4 I/O
FUNCTION
Switch matrix data
MIDI transmit data
Switch matrix data
LED drive data
LED and switch drive data
Grounded
Analog input
Analog input
Switch matrix data
FUNCTION
Transmit Data 31
Receive Data 32
Transmit Data 32
Receive Data 33
Transmit Data 33
Initial Clear
Ground
Quartz Crystal Input
Ground
Quartz Crystal Output
Address Bus
CPU Clock
Ground
Power Supply
Data Bus
CS6X
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