Sony BVP-550, Maintenance Manual

Page: 610 / 924

6-28
IC
BVP-550
X24164SI(XICOR)(16K BIT)FLAT PACKAGE
X24C02S-3.0(XICOR)(2K BIT)FLAT PACKAGE
UPD71055GB-10-3B4(NEC)FLAT PACKAGE
C-MOS PARALLEL INTERFACE UNIT
—TOP VIEW—
V
DD (+5V)
1
2
3
4
5
6
7
CS
A1
A0
P27
P26
P25
P24
P20
P21
P22 P23 P10 P11 P12 P13 P14 P15 P16 P17
RD P00 P01 P02 P03 P04 P05 P06 P07 WR
IC
8 26
27
28
29
30
31
32
25
GND
43
42
41
35
44
32
RESET
RESET
31
D0
D0
30
D1
D1
29
D2
D2
28
D3
D3
27
D4
D4
26
D5
D5
25
D6
D6
24
D7
D7
4
WR
RD
A0
CS
A1
5
P00
P01
P02
P03
P04
P05
P06
P07
P10
P11
P12
P13
P14
P15
P16
P17
P20
P21
P22
P23
P24
P25
P26
P27
A1, A0
CS
D7-D0
P07-P00
IC
CS
0
0
0
0
0
0
0
0
0
0
1
RD
0
0
0
0
0
1
1
1
1
1
X
WR
1
1
1
1
0
0
0
0
0
1
X
A1
0
0
1
1
X
0
0
1
1
X
X
A0
0
1
0
1
X
0
1
0
1
X
X
OPERATION
PORT0 DATA • BUS
PORT1 DATA • BUS
PORT2 DATA • BUS
DATA • BUS PORT0
DATA • BUS PORT1
DATA • BUS PORT2
DATA • BUS COMMAND REGISTER 0 ; LOW LEVEL
1 ; HIGH LEVEL
X ; DON'T CARE
CPU ACTION
INPUT
INPUT
INPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
DISABLE
HIGH IMPEDANCE
;
;
;
;
;
P17-P10
P27-P20
RD
WR ADDRESS
CHIP SELECT
DATA BUS
PORT 0
INTERNALLY CONNECTED
PORT 1
PORT 2
READ STROBE
WRITE STROBE ;
;
;
;
33
9
24
10
23
NC
NC
NC
INDEX
11
12 13 14 15 16 17 18 19 20 21 22
44 43 42 41 40 39 38 37 36 35 34
40
39
38
37
36
14
15
16
18
19
20
21
22
10
11
12
13
9
8
7
6
2
PORT 1
PORT 2
PORT 0
READ/
WRITE
CONTROL
DATA BUS
BUFF
8
8
8
8
GROUP
CONTROL
GROUP
CONTROL
COMMAND
REGISTER
13-10
6-9
24-31
44
35
4
5
32
2
36-43
22-18,
16-14
P17-P10
P23-P20
P27-P24
P07-P00
D7-D0
RD
WR
A1
A0
RESET
CS
INTERNAL 8-BIT BUS
C-MOS SERIAL EEPROM
- TOP VIEW -
1
2
3
4
8
7
6
5 GND
Vcc (+5V) A0
A1
A2
IN
IN
IN
WC*
SCL
SDA
IN
IN
OUT
6
3
2
1
7
5
SCL
A2
A1
A0
WC*
NOTE : * TEST (at X24164SIC7000)
START
STOP
LOGIC
SLAVE ADDRESS
REGISTER
COMPARATOR
CONTROL
LOGIC
WORD
ADDRESS
COUNTER
LOAD
INC
E PROM
2K ; 64x32
4K ; 64x64
16K ; 64x256
2
X DEC
Y DEC
DATA
ERGISTER
8
CK
PIN
H. V. GENERATION
TIMING &
CONTROL
START
CYCLE
7
5
6
3
2
1
WC *
SDA
SCL
A2
A1
A0
D OUT
ACK
D OUT
R/W
SDA