6. MICROPROCESSOR AND IC DATA
RAM
2048 BYTES
SPC 700
CPU CORE
INTERRUPT CONTROLLER
A/D CONVERTER
SERIAL
INTERFACE
UNIT (CH0)
SERIAL
INTERFACE
UNIT (CH1)
8 BIT TIMER/COUNTER 0
8 BIT TIMER 1
I
2
C BUS
INTERFACE UNIT
INT3/NMI
INT1
INT0
INT2
AN0 to AN7
8
PA0 to PA7
BUFFER
RAM
REMOCON IN
FDP
CONTROLLER/
DRIVER
32KHz
TIMER/COUNTER
PRESCALER/
TIME BASE TIMER
RST
V
D
D
V
S
S
PORT A
PORT B
PORT C
PORT D
PORT E
PORT F
PORT G
8
8
6
2
4
4
8
8
PB0 to PB7
PC0 to PC7
PD0 to PD7
PE0 to PE5
PF0 to PF3
PG0 to PG3
PE6 to PE7
TEX
EXTAL
XTAL
TX
AV
R
E
F
AV
S
S
T0 to T7
T8/S19 to T15/S12
S0 to S11
V
FDP
KR0 to KR7
RMCO
RMC
CS0
SI0
SO0
SCK0
SI1
SO1
SCK1
EC
SCL0
SCL1
SDA0
2
8
8
ROM
40K/48K/52K/60K
BYTES
12
8
RAM
RAM
KEY SCAN
2
CLOCK
GENERATOR
SYSTEM CONTROL
BUFFER
RAM
REMOCON OUT
SDA1
AV
D
D
FIFO
FIFO
ADJ
TO
2
PE0/EC/INT0
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
40
39
38
37
36
35
34
31 32 33
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
70 69 68 67
63
64
65
66
61
62
71
72
73
74
75
76
77
78
79
80
1
T0
T1
T2
T3
T4
T5
T6
PB5/SCK1
PB3/SI0
PB4/SO0
PB6/SI1
PB7/SO1
PA7/AN7
PA0/AN0
PA1/AN1
PA2/AN2
PA3/AN3
PA4/AN4
PA5/AN5
PA6/AN6
T7
T10/S17
T11/S16
T12/S15
T13/S14
T14/S13
T15/S12
S11
S10
S9
S8
PD7/S7
PD6/S6
T8/S19
T9/S18
PC6/KR6
PC7/KR7
PD5/S5
PD4/S4
PD3/S3
PD2/S2
PD1/S1
PD0/S0
V
FDP
NC
TEX
TX
V
D
D
PG3
PG2
PG1
PG0
PE1/INT1
PE2/INT2
PE3/INT3/NMI
PE4/RMC
PE5
PE6/RMCO
PE7/TO/ADJ
PB0
PB1/CS0
PB2/SCK0
AV
DD
PC0/KR0
PC1/KR1
PC2/KR2
PC3/KR3
PC4/KR4
PC5/KR5
AV
R
E
F
V
S
S
AV
S
S
PF0/SCL0
PF1/SCL1
PF2/SDA0
PF3/SDA1
EXTAL
XTAL
RST
17
Pin code
I/O
Functions
I/O/
Analog input
PA0/AN0
to
PA7/AN7
Analog inputs to A/D converter. (8 pins)
I/O/Input
PC0/KR0
to
PC7/KR7
PE0/INT0/EC
PE1/INT1
PE2/INT2
PE3/INT3/
NMI
PE4/RMC
PE5
PE6/RMCO
PE7/TO/ADJ
PF0/SCL0
PF1/SCL1
PF2/SDA0
PF3/SDA1
Input/Input/Input
Input/Input
Input/Input
Input/Input/Input
Input/Input
Input
Output/Output
Output/Output/
Output
Output/I/O
Output/I/O
Serves as key return inputs when operating
key scan with fluorescent display panel (FDP)
segment signal (8 pins).
(Port E)
8-bit port. Lower 6 bits
are for inputs; upper
2 bits are for outputs.
(8 pins)
(Port F)
4-bit output port,
operating as N-ch open
drain output for large
current (12mA).
(4 pins)
External event inputs for
timer/counter.
Inputs for
external
interruption
request.
(4 pins)
Non-maskable interruption
request input.
Remote control reception circuit input.
Carrier output of remote control transmission
circuit.
Output for the timer/counter rectangular waves,
and 32kHz oscillation dividing frequency.
Transfer clock I/Os for I
2
C bus interface.
Transfer data I/Os for I
2
C bus interface.
I/O
I/O/Input
I/O/I/O
I/O/Input
I/O/Output
I/O/I/O
I/O/Input
I/O/Output
PB0
PB1/CS0
PB2/SCK0
PB3/SI0
PB4/SO0
PB5/SCK1
PB6/SI1
PB7/SO1
(Port B)
8-bit I/O port. I/O can
be set in a unit of
single bits.
Incorporation of pull-up
resistor can be set
through the software in
a unit of 4 bits.
(8 pins)
Chip select input for serial interface (CH0).
Serial clock I/O (CH0).
Serial data input (CH0).
Serial data output (CH0).
Serial clock I/O (CH1).
Serial data input (CH1).
Serial data output (CH1).
(Port A)
8-bit I/O port. I/O can
be set in a unit of
single bits.
Incorporation of pull-up
resistor can be set
through the software in
a unit of 4 bits.
(8 pins)
(Port C)
8-bit I/O port. I/O can
be set in a unit of single
bits. Capable of driving
12mA sync current.
Incorporation of pull-up
resistor can be set
through the software in
a unit of 4 bits.
(8 pins)
Output/Output
PD0/S0
to
PD7/S7
(Port D)
8-bit output ports.
(8 pins)
FDP segment signal outputs.
(8 pins)
Output
S8 to S11
FDP segment signal outputs. (4 pins)
Output/Output
T8/S12
to
T15/S19
Outputs for FDP timing signals/segment signals.
(8 pins)
I/O
PG0 to PG3
(Port G)
8-bit I/O port. I/O can be set in a unit of single bits.
Incorporation of pull-up resistor can be set through the software in a unit
of 4 bits.
(4 pins)
V
FDP
EXTAL
XTAL
TEX
TX
RST
NC
AV
REF
AV
SS
V
DD
V
SS
Input
Output
Input
Output
Input
Input
FDP voltage supply when incorporated resistor is set by mask option.
T0 to T7
FDP timing signal outputs.
Crystal connectors for system clock oscillation. When the clock is
supplied externally, input to EXTAL; opposite phase clock should be
input to XTAL.
Crystal connectors for 32kHz timer/counter clock oscillation. Set 32kHz
crystal oscillator between TEX and TX. For usage as event input, attach
clock source to TEX, and open TX.
Low-level active, system reset.
NC. Under normal operation, connect to V
DD
.
AV
DD
Positive power supply for A/D converter.
Reference voltage input for A/D converter.
A/D converter GND.
Positive power supply.
GND.
Output
18
U42 : CXT82940
Note) NC (Pin 75) must be connected to V
DD.
1. Pin Functions
3. Pin Configuration
12
13
14
15
16
17
18
19
20
21
22
2
3
4
5
6
7
8
9
10
11
1
IREF
MOA
SSK
REC AMP
SSK
REC AMP
KLS
HDET
LDET
LLS
KLS
HDET
LDET
LLS
V
CC
V
EE
Mode
Control
MOA
2. Block Diagram
U305 : CXA1561S
U310 : PC1297CA
V
CC
V
R2
V
IN(R)2
PH
2
C
IN2
C
OUT2
V
OUT21
V
OUT22
V
IN(O)
V
ST
V
R1
V
IN(R)1
PH
1
C
IN1
C
OUT1
V
OUT11
V
OUT12
GND
10
11
12
13
14
15
16
ABSO
DET
PEAK
DET
ABSO
DET
PEAK
DET
V C A
PRE.
DRIVER
POWER
REGULATOR
THERMO
DETECT
V C A
17
18
1
2
3
4
5
6
7
8
9
