Lsi Pin Description - Yamaha N-100 Service Manual

LSI PIN DESCRIPTION

HD6433690B70FYV (X6008200) CPU (E-HOSTs) ............................................................................ 17
YMW767-VTZ (X6055A00) CPU (SWL01B) ...................................................................................... 18
AK4385ET (X6040A00) DAC (Digital to Analog Converter) ............................................................... 19
µPD780031AYGK-N04 (X0031200) E-LKS ....................................................................................... 19
HD6433690B70FYV (X6008200) CPU (E-HOSTs)
PIN
I/O
NAME
NO.
1 Avcc - Analog Power Supply (+3.3V)
2 X2 O Sub Clock Output
X1
3 I Sub Clock Input
Vcl
4 - Internal Power Supply (+3.3V)
5 /RES I RESET input
6 TEST I TEST input
Vss
7 - Ground
OSC2
8 O Clock output
OSC1 Clock input
9 I
10 Vcc - Power supply
P50
11 O - (NC)
P51
12 O - (NC)
P52 Active Sensing ON/OFF
13 I
14 P53 O - (NC)
15 P54 O - (NC)
P55
16 O - (NC)
P10 - (NC)
17 O
18 P11 O - (NC)
19 P12 O /E-IC
P56
20 I/O SDA
P57
21 I/O SCL
22 P74 O - (NC)
23 P75 O - (NC)
P76
24 O - (NC)
FUNCTION
PIN
I/O
NAME
NO.
25 /NMI I (Pull Up)
26 P80 O - (NC)
27
P81 O - (NC)
28
P82 O - (NC)
29 P83 O - (NC)
30 P84 O - (NC)
31
P85 I (Pull Up or Vcc)
32
P86 O - (NC)
33 - (NC)
P87 O
34 P20 O SCK3 (Main CPU)
35
P21 I RXD (Pull Up)
36
P22 O TXD (Main CPU)
37 /IRQ0 (Main CPU)
P14 I
38 P15 O - (NC)
39 P16 O - (NC)
40
P17 O - (NC)
41 Analog Controller (AN4)
PB4 I
42 PB5 I Analog Controller (AN5)
43 PB6 I Analog Controller (AN6)
44
PB7 I Analog Controller (AN7)
45
PB3 I Analog Controller (AN3)
46 PB2 I Analog Controller (AN2)
47 PB1 I Analog Controller (AN1)
48
PB0 I Analog Controller (AN0)
N-100
DM: IC024
FUNCTION
17