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EXPLANATION OF MICROCOMPUTER
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Signal
/RST0
/RST1
SPDRVPS
G
MUTEL
MUTER
MD2
LSPEED
FLCNT
AUDIO
/G
VSS
D0
D1
D2
D3
D4
D5
D6
D7
VCC
HA0
HA1
HA2
HA3
HA4
HA5
HA6
HA7
VSS
NC
NC
LOEJKEY
I/O
O
O
O
O
O
O
I
O
O
O
O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
Function
ATAPI controller/decoder reset
Servo/data processor reset
Spindle motor driver power save
H : Operation mode, L : Standby
H : MUTE ON / L : MUTE OFF LcH
H : MUTE ON / L : MUTE OFF RcH
Normally 5V,boot flash writing 0V
PLL output
Flash memory output
AUDIO Disc play : H
H : Standby,L : Operation mode
GND
CPU data bus
CPU data bus
CPU data bus
CPU data bus
CPU data bus
CPU data bus
CPU data bus
CPU data bus
+5V
CPU address bus
CPU address bus
CPU address bus
CPU address bus
CPU address bus
CPU address bus
CPU address bus
NC
GND
NC
NC
NC
IC1151 (HD64F3039TEBL18)1/3