Lsi Pin Description - Yamaha EZ-AG Service Manual

LSI PIN DESCRIPTION

MN101C027YB (XS711200) CPU
PIN
NAME I/O
NO.
1 S1 I
2 S2 I
3 S3 I Switch matrix data
4 S4 I
5 S5 I
6 VREF+ - Power supply (+5V, analog)
7 VDD - Power supply (+5V)
8 OSC2 O Crystal oscillator (8MHz)
9 OSC1 I Crystal oscillator (8MHz)
10 VSS - Ground
11 XI I Not used
12 XO O Not used
13 MMOD I Memory mode select (Grounded)
14 RD0 O Rotary encoder data
15 RXD I MIDI receive data
16 D0 O
17 D1 O
18 D2 O LED and switch drive data
19 D3 O
20 D4 O
21 /RST I Reset
22 D5 O
23 D6 O
24 D7 O LED and switch drive data
25 D8 O
26 D9 O
27 S6 I
28 S7 I
29 S8 I
Switch matrix data
30 S9 I
31 S10 I
32 S11 I
FUNCTION
PIN
NAME I/O
NO.
33 S12 I
34 S13 I Switch matrix data
35 S14 I
36 TXD O MIDI transmit data
37 S15 I
38 S16 I
Switch matrix data
39 S17 I
40 S18 I
41 L16 O
42 L17 O
43 L18 O
44 L19 O
45 L8 O
46 L9 O
LED drive data
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
LED and switch drive data
57 L3 O
58 L2 O
59 L1 O
60 L0 O
61 VREF - Grounded
62 AD0 I Analog input
63 AD1 I Analog input
64 S0 I Switch matrix data
EZ-AG
PN: IC001
FUNCTION
9