Sony CXP82716, CXP82712 Datasheet
Description
The CXP82712/82716 microcomputer is composed
of a 8-bit CPU, ROM, RAM, and I/O ports. These
chips feature many other high-performance circuits
in a single-chip CMOS design, including an A/D
converter, serial interface, timer/counter, time base
timer, fluorescent display controller/driver, remote
control receiver, PWM output circuit and 32kHz
timer/counter.
This device also includes sleep/stop functions which
can be used to achieve low power consumption.
Features
• Instruction set which supports a wide array of data types
— 213 types of instructions which include 16-bit calculations, multiplication and division arithmetic, and
boolean bit operations.
• Minimum instruction cycle 400ns for 10MHz, 122µs for 32kHz operation
• On-chip ROM 12K bytes (CXP82712)
16K bytes (CXP82716)
• On-chip RAM 448 bytes (Including fluorescent display data area)
• Peripheral functions
— A/D converter 8-bit, 8-channel, successive approximation system
(conversion rate 32µs/10MHz)
— Serial interface On-chip 8-bit, 8-stage FIFO (1 to 8 bytes auto transfer),
1 circuit 2-channel
— Timers 8-bit timer
8-bit timer/counter
19-bit time base timer
32kHz timer/counter
— Fluorescent display controller/driver 24 high voltage tolerance output ports
Maximum of 144 segments display available
1 to 16 digits dynamic display
Dimmer function
High voltage tolerance output (40V)
On-chip pull-down resistor (Mask option)
Hardware key scan function (Maximum of 8 × 8 key matrix available)
— Remote control receiver circuit On-chip 6-stage FIFO 8-bit pulse measurement counter
— PWM output 8-bit, 1-channel
• Interruption 13 factors, 13 vectors, multi-interruption possible
• Standby mode Sleep/stop
• Package 64-pin plastic SDIP
• Piggyback/evaluator CXP82700 64-pin ceramic SDIP
CMOS 8-bit Single Chip Microcomputer
– 1 –
E93Y23A79-PS
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
CXP82712/82716
64 pin SDIP (Plastic)
Structure
Silicon gate CMOS IC
– 2 –
CXP82712/82716
A/D CONVERTER
FDP
CONTROLLER/
DRIVER
REMOCON
SERIAL
INTERFACE
UNIT
8 BIT TIMER/COUNTER 0
FIFO
FIFO
INTERRUPT CONTROLLER
SPC700
CPU CORE
ROM
12K/16K BYTES
PRESCALER/
TIME BASE TIMER
32kHz
TIMER/COUNTER
RAM
448 BYTES
CLOCK GEN./
SYSTEM CONTROL
8
PA0/AN0
to
PA7/AN7
T0 to T7
PE4/RMC
PB1/CS0
PB3/SI0
PB4/SO0
PB2/SCK0
PB6/SI1
PB7/SO1
PB5/SCK1
PE0/EC
PE0/INT0
PE1/INT1
PE2/INT2
PE3/INT3
PH1/TEX
PH0/TX
EXTAL
XTAL
RST
V
DD
Vss
PORT C
8
PC0 to PC7
PORT F
3
PF5 to PF7
PORT B
8
PB0 to PB7
PORT E
6
2
PE0 to PE4
PE5 to PE6
8
8
8
T8/S28
to
T15/S21
S13 to S20
V
FDP
8 BIT TIMER 1
RAM
80 BYTES
PORT A
8
PA0 to PA7
PB0/CS1
2
PE6/ADJ
PE6/TO
PE3/NMI
2
PORT H
2
PH0 to PH1
8 BIT PWM
PE5/PWM
Block Diagram
– 3 –
CXP82712/82716
Pin Assignment (Top View)
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
63
64
61
62
1
PH0/TX
PH1/TEX
NC
PE6/ADJ/TO
PB0/CS1
PB1/CS0
PB2/SCK0
PB3/SI0
PB4/SO0
PB5/SCK1
PB6/SI1
PB7/SO1
PC0/KR0
PC1/KR1
PC2/KR2
PC3/KR3
PC4/KR4
PC5/KR5
PC6/KR6
PC7/KR7
PA0/AN0
PA1/AN1
PA2/AN2
PA3/AN3
PA4/AN4
PA5/AN5
PA6/AN6
PA7/AN7
RST
EXTAL
XTAL
Vss
V
DD
PE5/PWM
PE4/RMC
PE3/INT3/NMI
PE2/INT2
PE1/INT1
PE0/EC/INT0
VFDP
T0
T1
T2
T3
T4
T5
T6
T7
T8/S28
T9/S27
T10/S26
T11/S25
T12/S24
T13/S23
T14/S22
T15/S21
S20
S19
S18
S17
S16
PF7/S15
PF6/S14
PF5/S13
Note) 1. NC (Pin 3) is always connected to VDD.
2. PH0/TX (Pin 1) is input port during port selection;
oscillation output during oscillation selection
– 4 –
CXP82712/82716
Pin Description
Symbol I/O Functions
I/O/Analog Input
PA0/AN0
to
PA7/AN7
(Port A)
8-bit I/O port. I/O can
be set in a bit unit.
Incorporation of pull-up
resistor can be set
through the software in
a unit of 4 bits.
(8 pins)
Analog inputs to A/D converter.
(8 pins)
I/O/Input
PC0/KR0
to
PC7/KR7
PE0/INT0/
EC0
PE1/INT1
PE2/INT2
PE3/INT3/
NMI
PE4/RMC
PE5/PWM
PE6/ADJ/TO
Input/Input/
Input
Input/Input
Input/Input
Input/Input/
Input
Input/Input
Output/Output
Output
(Port C)
8-bit I/O port. I/O can
be set in a bit unit.
Capable of driving
12mA sink current.
Incorporation of pull-up
resistor can be set
through the software in
a unit of 4 bits.
(8 pins)
(Port E)
Lower 5 bits are for
inputs; upper 2 bits are
for outputs.
(7 pins)
Key return input for FDP segment signal which
performs key scanning.
External event input to
timer/counter. (1 pin)
External interrupt
requests.
(4 pins)
Non-maskable interruption request input.
Input for remote control receiver circuit.
8-bit PWM output.
Output for timer/counter rectangular waveform
and 32kHz oscillation frequency division.
I/O/Input
I/O/Input
I/O/I/O
I/O/Input
I/O/Output
I/O/I/O
I/O/Input
I/O/Output
PB0/CS1
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 bit unit.
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 (CH1).
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).
– 5 –
CXP82712/82716
Symbol I/O Functions
Output/Output
T8/S28
to
T15/S21
Dual purpose output for FDP timing and segment signals.
Output/Output
PF5/S13
to
PF7/S15
(Port F)
3-bit output port.
(3 pins)
Output
S16 to S20
Segment signal output for FDP.
Output
T0 to T7 Timing signal output for FDP.
Input
Crystal connectors for system clock oscillation. When the clock is
supplied externally, input to EXTAL; opposite phase clock should be
input to XTAL.
EXTAL
Provides voltage for FDP when on-chip resistor is selected under mask option.
VFDP
Output
XTAL
Input/Input
Crystal connectors for 32kHz timer/counter clock
oscillation circuit. Connect a 32kHz crystal oscillator
between TEX and TX. For usage as event input, connect
clock oscillation source to TEX, and leave TX open.
PH1/TEX
Input/OutputPH0/TX
Input System reset pin of active "L" level. RST is input pin.RST
NC.
Under normal operating conditions, connect to VDD.
NC
Vcc supply.
VDD
GND
Vss
(Port H)
2-bit input
port.
(2 pins)
Segment signal output for FDP.
– 6 –
CXP82712/82716
Port B
Data bus
RD (Port B)
Port B direction
IP
Port B data
"0" when reset
"0" when reset
∗
Schmitt input
CS0
CS1
SI0
SI1
∗
Pull-up transistors
approx. 100kΩ
Pull-up resistor
8 pins
Hi-Z
Hi-Z
When reset
PA0/AN0
to
PA7/AN7
PB0/CS1
PB1/CS0
PB3/SI0
PB6/SI1
Port B
Data bus
RD (Port B)
IP
Port B output
selection
"0" when reset
∗
Schmitt input
SCK in
Port B data
Port B direction
"0" when reset
"0" when reset
SCK OUT
Output enable
∗
Pull-up transistors
approx. 100kΩ
Pull-up resistor
4 pins
2 pins
Hi-Z
PB2/SCK0
PB5/SCK1
Data bus
RD (Port A)
Port A direction
IP
Port A data
Pull-up resistor
Port A input
selection
Input protection
circuit
"0" when reset
"0" when reset
"0" when reset
Input multiplexer
A/D converter
∗
Pull-up transistors
approx. 100kΩ
∗
I/O Circuit Format for Pins
Port A
Pin
Circuit format
– 7 –
CXP82712/82716
2 pins
Hi-Z
Hi-Z
Pin
When reset
Circuit format
PB4/SO0
PB7/SO1
PC0/KR0
to
PC7/KR7
8 pins
5 pins
Hi-Z
PE0/EC/INT0
PE1/INT1
PE2/INT2
PE3/INT3/NMI
PE4/RMC
IP
Schmitt input
RD (Port E)
Data bus
EC/INT0
INT1
INT2
INT3/NMI
RMC
Data bus
RD (Port C)
Port C direction
IP
Port C data
"0" when reset
"0" when reset
∗2
∗1
∗
2
Pull-up transistors approx. 100kΩ
∗
1
Large current drive of 12mA possible
Pull-up resistor
Key input signal
Data bus
RD (Port B)
IP
Port B output
selection
"0" when reset
∗
Port B data
Port B direction
"0" when reset
SO
Output enable
∗
Pull-up transistors
approx. 100kΩ
Pull-up resistor
"0" when reset
Port E
Port C
Port B
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