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35
IC501 (H8/3048) : µ COM
It Controls the total system giving or taking the data from the peripheral ICS.
Pin Description
No.
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
34
35
36
37
38
DRD-820B
pin name
VCC1
FLAGA
FLAGB
FLAGD
CDNDVD
VCOSEL0
VCOSEL1
CDLED
DVDLED
VPP
VSS1
RESET
TxD1
NC
RxD1
NC
NC
/CCE
BUCK
SCB
SCL
VSS2
SCD
VRCS
NC
VPPON
/TESTMD
/WR41
/RD41
/CS41
TRAYIN
TRAYOUT
SPDG0
SPDG1
VCC2
MADDR0
MADDR1
MADDR2
5V
NC
NC
NC
DVD or CD output (DVD="0", CD="1")
PLL REF SW ( x 24=H, x 1/ x 12/DVD=L)
NC
CD busy LED
DVD busy LED
Vcc for Flash Memory Version
GND
Software Reset Output to 9461F, 90A41AF
TxD for flash serial writing
NC
RxD for flash serial writing
NC
N.C
Chip select output to TC9461F
Clock output to TC9461F when read/write command transfer
Bit Clock to TA1254F
Latch Signal to TA1254F
GND
Data to TA1254F
Clock for RF EQ. Filter to TA1254F
NC
°Æ
H
°Ø
when Flash Rom writing
For Test Mode (L active)
Write enable signal to TC90A41F (L active)
Read enable signal to TC90A41F (L active)
Chip Select signal to TC90A41F (L active)
Tray close output to BA6792
Tray open output to BA6792
Spindle Gain control Output 0
Spindle Gain control Output 1
VCC
Address 0 to/from TC6817F/TC90A41AF
Address 1 to/from TC6817F/TC90A41AF
Address 2 to/from TC6817F
H8/3048
pin name
Vcc
PB-0
PB-1
PB-2
PB-3
PB-4
PB-5
PB-6
PB-7
Vpp
Vss
P9-0
P9-1
P9-2
P9-3
P9-4
P9-5
P4-0
P4-1
P4-2
P4-3
Vss
P4-4
P4-5
P4-6
P4-7
P3-0
P3-1
P3-2
P3-3
P3-4
P3-5
P3-6
P3-7
Vcc
P1-0
P1-1
P1-2
D
I
O
O
O
O
O
O
O
O
I
I
O
I
O
I
O
O
O
O
I
I
I
O
O
O
O
O
O
O
O
O
I
O
Description
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