
PSR-550
13
■
LSI PIN DESCRIPTION
DM : IC270
µ
PD789022GB-A15-8E (XZ560100) CPU ........................................................................................... 13
HD6437042AF90F (XZ787100) CPU .................................................................................................. 14
HG73C205AFD (XU947C00) SWX00B (Tone Generator) ................................................................... 15
HD63266F (XI939A00) FDC (Floppy Disk Controller) ......................................................................... 16
S6A0065B01-Q0RJ (XV993A00) LCD DRIVER ................................................................................. 16
S6A0069X10-Q0RJ (XV226A00) LCD DRIVER .................................................................................. 17
PCM1716E (XU829A00) DAC (Digital to Analog Converter) ............................................................... 13
●
µ
PD789022GB-A15-8E (XZ560100) CPU
MKS5 : IC1
PIN
NO.
I/O
FUNCTION
NAME
PIN
NO.
I/O
FUNCTION
NAME
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
P12
P11
P10
P47/KR7
P46/KR6
P45/KR5
P44/KR4
P43/KR3
P42/KR2
P41/KR1
P40/KR0
NC
IC
X2
X1
VSS0
VDD0
/RESET
P53
P52
P51/TO2
P50/TI0/TO0
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I/O
I/O
I/O
I/O
Port 1
Port 4/Key return signal detection input
Internally connected (N.C.)
Clock
Ground
Power supply
System reset
Port 5
Port 5/16-bit timer output
Port 5/External count clock input to 8-bit timer/8-bit timer output
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
P32/INTP2/CPT2
P31/INTP1
P30/INTP0
P22/RXD/SI0
P21/TXD/SO0
P20/ASCK//SCK0
P07
P06
P05
P04
P03
P02
P01
P00
NC
VDD1
VSS1
P17
P16
P15
P14
P13
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Port 3/External interrupt input/Capture edge input
Port 3/External interrupt input
Port 2/Asynchronous serial interface serial data input/Serial interface serial data input
Port 2/Asynchronous serial interface serial data output/Serial interface serial data output
Port 2/Asynchronous serial interface serial clock input/Serial interface serial clock
Port 0
Power supply
Ground
Port 1
●
PCM1716E (XU829A00) DAC (Digital to Analog Converter)
PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
I/O
I
I
I
O
I
O
-
-
-
-
O
-
O
-
LRCK
DATA
BCK
CLKO
XTI
XTO
DGND
VDD
Vcc2R
AGND2R
EXTR
NC
VOUTR
AGND1
NAME
Data input
Bit clock
Clock input
Clock input
Clock out
Digital ground
Digital power supply (+5 V)
Analog power supply (+5 V)
Analog ground
Rch, analog output
Rch, analog voltage output
Analog ground
FUNCTION
PIN
NO.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
I/O
-
O
-
O
-
-
O
I
I
I
I
I
I
I
Vcc1
VOUTL
NC
EXTL
AGND2L
Vcc2L
/ZERO
/RST
/CS/IWO
MODE
/MUTE
MD/DM0
MC/DM1
ML/IIS
NAME
Analog power supply (+5 V)
Lch, analog voltage output
Lch, analog output
Analog ground
Analog power supply (+5 V)
Zero data flag
Reset
Chip select
Mode control select
(H: Software, L: Hardware)
Mute control
Mode control data/ De-emphasis select1
Mode control BCK/De-emphasis select2
Mode control Latch/input format select
FUNCTION