![background image](http://html.mh-extra.com/html/sony/hcd-gnx780/hcd-gnx780_service-manual_420696055.webp)
55
HCD-GNX780/GNX880
– BD84 Board –
IC301 TC94A34FG-002
33
34
35
36
37
38
39
40
41
42
1
8
43
61
62
63
64
60
59
56
52
50
47
46
45
44
48
49
25
26
27
28
29
30
31
32
17
18
19
20
21
22
23
24
9
10
11
2
3
4
5
6
7
58
57
55
53
51
12
13
14
15
16
54
CS/RAS/SDO2
AD15/CAS/PD12
SDO3/OE
WE/SDO1
PIO7/B
US3/IO7
PIO6/FI3/B
US2/IO7
PIO5/FI2/B
US1/IO5
PIO4/FI1/B
US0/IO4
Bus
Switch
PO11/BUCK/AD14
PO10/CCE/AD13
PO9/AD12
PO08/AD11
Gener
al
In/Output P
o
rt
Address Calc.
2sets
Y-
P
ointer
register
C-P
ointer
register
X-P
ointer
register
VDDM
SRMSTB
VDDT
AD10
AD9
ERAM
2k w
ord
CRAM
4k w
ord
CR
OM
4k w
ord
YRAM
4k w
ord
XRAM
4k w
ord
SRAM/
DRAM I/F
SRAM I/F
1Mbit
SRAM
X-Bus
Y
-Bus
PO07/AD7
PO06/AD6
PO05/AD5
AD8
VC0
Timing
Generator
PRAM
Instr
uction
Decoder
Prog
ra
m
Control
MCU
. I/F
register
XO • X1 • X2
Y0 •
Y1 •
Y2
MX
MY
MZ
MA
C
A0
A1
AX
A
Y
ALU
A2
A3
DIT
round & limit
round & limit
A
udio I/F
LRCKIA
BCKIA
SDI0
LRCKO
BCKO
SDO0
VSS
VDDT
MIACK
MICK
MIDIO
MILP
MICS
STANBY
RESET
VDDP
AD4/PO04
AD3/PO03
AD2/PO02
AD1/PO01
AD0/PO00
VSS
VDD
CK
O/PO13/AD16
VDDX
XO
TEST
VCOI
VSSX
XI
MIMD
VSSP
PIO3/IO3
PIO2/IO2
PIO1/SDI3/IO1
PIO0/SDI2/IO0
VSS
CKI/CLOCK/IRQ/FIO
VDD
TXO
SFSY/LRCKIB
SBSY/BCKIB
SDI1/D
A
T
A
POM
Sub code
I/F
CDP Cont
I/F