Sony BKM-142HD Maintenance Manual page 58

1
2
3
4
5
A B
BX (2/2) BX (2/2)
BKM-129X
7-4
C D
BKM-129X
7-4
E F
MB89613R-651 (IC501)
X0 23 TIME BASE TIMER
OSC
X1 24
8 BIT
59 P37/PTO
PMW TIMER
CLOCK CONTROL
8 BIT 58 P36/WTO
PULSE WIDTH
RST 20 RESET(WDT) 57 VCC
COUNT TIMER
56 P35/PWC
P00/AD0 49
16 BIT
55 P34/EC
P01/AD1 48 TIMER COUNTER
P02/AD2 47
54 P33/SI1
P03/AD3 46 8 BIT
53 P32/SO1
SERIAL 1
P04/AD4 45
52 P31/SCK1
P05/AD5 44
C-MOS I/O PORT 51
P30
P06/AD6 43
50 VSS
P07/AD7 42
P47/S12
C-MOS I/O PORT 8BIT 3
P10/A08 41
2 P46/SO2
SERIAL 2
P11/A09 40
1 P45/SCK2
P12/A10 39
BUZZER OUT
64 P44/BZ
P13/A11 38
63 P43
P14/A12 37
62 P42
P15/A13 36 OPEN DRAIN
I/O PORT 61 P41
P16/A14 35
P17/A15 34 60 P40
P50
4
MOD0 21 P51
5
EXT. BUS INTERFACE
MOD1 22 P52
6
OPEN DRAIN
P27/ALE 26 7 P53
OUT PORT
P26/RD 27 8 P54
P25/WR
28 9 P55
C-MOS OUT PORT
P24/CLK 29
10 P56
P23/RDY 30
11 P57
P22/HRQ 31
12 VCC
32
P21/HAK
13 N.C.
P20/BUFC 33
14 VSS
RAM
15 P60/INT0
CPU
EXT. INTERRUPUT 16 P61/INT1
F MC-8L 2
17 P62/INT2
18 P63/INT3
19
P64
I/O PORT
ROM
X25040S (IC503)
X DECODE 512 BYTE
WRITE
STATUS LOGIC ARRAY
PROJECT
REGISTER
LOGIC
32
32X32
8
VCC
CS
1
COMMAND
32
DECODE 32X32
AND
SO 2
CONTROL
LOGIC
64
64X32
WP 3 WRITE
CONTROL
AND
TIMING
LOGIC
4 8
VSS 4
Y DECODE
7 HOLD
DATA REGISTER
6 SCK
5
SI
BKM-120D/127W/129X/142HD
G H