PSR-550
16
●
HD63266F (XI939A00) FDC (Floppy Disk Controller)
●
S6A0065B01-Q0RJ (XV993A00) LCD DRIVER
DM : IC800
PN : IC200
PIN
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
I/O
I
I
I
I
I
I
I
I
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
I
I
I
I
I
I
I
I
8"//5"
XTALSET
/RESET
E//RD
RW//WR
/CS
/DACK
RS0
RS1
VSS1
VSS2
D0
D1
D2
D3
D4
D5
D6
D7
/DREQ
/IRQ
/DEND
VSS3
1/2 EX1
VCC1
NUM1
NUM3
IFS
SFORM
/INP
/READY
/WPRT
NAME
Data transmission speed
Clock select
Rest
Enable/Read
Read/write/Write
Chip select
DMA acknowledge
Register select
Ground
Data bus
DMA request
Interrupt request
Data end
Ground
Power supply
Host interface select
Format data
Index pulse
Ready from FDD
Write control signal
FUNCTION
PIN
NO.
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
I/O
I
I
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
/TRKO
/INDEX
/RDATA
XTAL2
EXTAL2
NC
XTAL1
EXTAL1
VSS4
VSS5
NC
VCC2
VCC3
VCC4
/WGATE
/WDATA
VSS6
/STEP
/HDIR
/HLOAD
/HSEL
VSS7
/DS0
/DS1
/DS2
/DS3
VSS8
/MON0
/MON1
/MON2
/MON3
VSS9
NAME
Track 00 signal
Index signal
Read data input from FDD
Clock
Clock
Ground
Power supply
Write control
Writ data to FDD
Ground
Step signal to control head of FDD
Direction
Head load
Head select
Ground
Drive select
Ground
Motor on
Ground
FUNCTION
NAME
FUNCTION
NAME
FUNCTION
1
SC29
O
31
Vcc
LCD driver circuit (-5V)
2
SC28
O
32
CL1
I
Data shift
3
SC27
O
33
CL2
I
Latch clock
4
SC26
O
34
GND(Vss)
GND (0V)
5
SC25
O
35
DL1
I/O
6
SC24
O
36
DR1
I/O
7
SC23
O
37
DL2
I/O
Data input / output
8
SC22
O
38
DR2
I/O
9
SC21
O
39
NC
10
SC20
O
40
M
I
A lte rna te d s ig na l fo r L C D d riv e r o u tp u t
11
SC19
O
41
SHL1
I
Data interface
12
SC18
O
Segment signal output
42
SHL2
I
Data interface
13
SC17
O
for LCD driving
43
FCS
I
Mods selection
14
SC16
O
44
V1
I
15
SC15
O
45
V2
I
16
SC14
O
46
V3
I
Power supply
17
SC13
O
47
V4
I
18
SC12
O
48
V5
I
19
SC9
O
49
V6
I
20
SC10
O
50
SC40
O
21
SC11
O
51
SC39
O
22
SC8
O
52
SC38
O
23
SC7
O
53
SC37
O
24
VDD
Power supply
54
SC36
O
Segment signal output
25
SC6
O
55
SC35
O
for LCD driving
26
SC5
O
56
SC30
O
27
SC4
O
Segment signal output
57
SC31
O
28
SC3
O
for LCD driving
58
SC32
O
29
SC2
O
59
SC33
O
30
SC1
O
60
SC34
O
PIN
NO.
PIN
NO.
I/O
I/O
