Sony CXP84124, CXP84120 Datasheet

CMOS 8-bit Single Chip Microcomputer

Description

The CXP84120/84124 is a CMOS 8-bit single chip
micro-computer integrating on a single chip an A/D
converter, serial interface, timer/counter, time base
timer, capture timer/counter, remote control reception
circuit and other servo systems besides the basic
configurations of 8-bit CPU, ROM, RAM, and I/O
port.

The CXP84120/84124 also provides a power-on
reset function and a sleep/stop function that enables lower power consumption.

Features

• Wide-range instruction system (213 instructions) to cover various types of data

— 16-bit arithmetic/multiplication and division/Boolean bit operation instructions

• Minimum instruction cycle 400ns at 10MHz operation

122µs at 32kHz operation

• Incorporated ROM capacity 20K bytes (CXP84120)

24K bytes (CXP84124)

• Incorporated RAM capacity 624 bytes

• Peripheral functions

— A/D converter 8 bits, 8 channels, successive approximation method

(Conversion time of 32µs/10MHz)

— Serial interface SIO with 8-bit, 8-stage FIFO incorporated for data use

(Auto transfer for 1 to 8 bytes), 1 channel
8-bit standard SIO, 1 channel

— Timer 8-bit timer

8-bit timer/counter
19-bit time base timer
16-bit capture timer/counter
32kHz timer/counter

— Remote control reception circuit Incorporated noise elimination circuit

Incorporated 8-bit, 6-stage FIFO for measurement data

— PWM output 14 bits, 1 channel

• Interruption 14 factors, 15 vectors, multi-interruption possible

• Standby mode Sleep/stop

• Package 80-pin plastic QFP

• Piggyback/evaluation chip CXP84100 80-pin ceramic QFP

Structure

Silicon gate CMOS IC

– 1 –

E92234A81-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.

CXP84120/84124

80 pin QFP (Plastic)

– 2 –

CXP84120/84124

8

2

2

2

2

PA0/AN0

to

PA7/AN7

PE4/PWM

PE2/RMC

PB1/CS0

PB3/SI0

PB4/SO0

PB2/SCK0

PB6/SI1

PB7/SO1

PB5/SCK1

PE5/TO

PB0/CINT

PE1/EC1

PE0/EC0

A/D CONVERTER

AVss

AV

REF

14 BIT PWM GENERATOR

REMOCON

FIFO

SERIAL

INTERFACE

UNIT 0

FIFO

SERIAL INTERFACE UNIT 1

8 BIT TIMER/COUNTER 0

8 BIT TIMER 1

16 BIT CAPTURE

TIMER/COUNTER2

INTERRUPT CONTROLLER

PI0/INT0

PI1/INT1

PI2/INT2

PI3/INT3

PE3/NMI

SPC700

CPU CORE

ROM

20K BYTES

(CXP84120)

24K BYTES

(CXP84124)

CLOCK GEN./

SYSTEM CONTROL

RAM

624 BYTES

PRESCALER/

TIME BASE TIMER

EXTAL

XTAL

V

DD

Vss

PORT A

7

8

8

4

2

8

PA0 to PA7

PB0 to PB6

PB7

PC0 to PC7

PD0 to PD7

PE0 to PE3

PE4 to PE5

PF0 to PF7

PG0 to PG7

PI0 to PI7

RST

8

8

8

PORT B

PORT C

PORT D

PORT E

PORT F

PORT G

PORT I

TEX

TX

PH0 to PH7
8

PORT H

32kHz

TIMER/COUNTER

Block Diagram

– 3 –

CXP84120/84124

Pin Assignment (Top View)

PF3
PF4
PF5
PF6

PF7
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PH0
PH1
PH2

PI4
PI3/INT3
PI2/INT2
PI1/INT1
PI0/INT0
PE5TO
PE4/PWM
PE3/NMI
PE2/RMC
PE1/EC1
PE0/EC0
PB7/SO1
PB6/SI1
PB5/SCK1
PB4/SO0
PB3/SI0
PB2/SCK0
PB1/CS0
PB0/CINT
PA7/AN7
PA6/AN6
PA5/AN5
PA4/AN4
PA3/AN3

PH3

PH4

PH5

PH6

PH7

RST

EXTAL

XTAL

V

SS

TX

TEX

AV

SS

AV

REF

PA0/AN0

PA1/AN1

PA2/AN2

PF2

PF1

PF0

PG7

PG6

PG5

PG4

NC

V

DD

PG3

PG2

PG1

PG0

PI7

PI6

PI5

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

Note) NC (Pin 73) must be connected to VDD.

– 4 –

CXP84120/84124

Pin Description

Symbol I/O Description

I/O/Analog input

PA0/AN0

to

PA7/AN7

(Port A)
8-bit I/O port. I/O can be
set in a unit of single bit.
Incorporation of the
pull-up resistance can be
set through the software
in a unit of 4 bits.
(8 pins)

Analog inputs to A/D converter.
(8 pins)

I/OPC0 to PC7

(Port C)
8-bit I/O port. I/O can be set in a unit of single bit. 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)

I/OPD0 to PD7

(Port D)
8-bit I/O port. I/O can be set in a unit of single bits. Incorporation of pull­up resistor can be set through the software in a unit of 4 bits.
(8 pins)

I/OPF0 to PF7

(Port F)
8-bit I/O port. I/O can be set in a unit of single bit. Incorporation of
pull-up resistor can be set through the software in a unit of 4 bits.
(8 pins)

Input/Input
Input/Input
Input/Input
Input/Input
Output/Output

Output/Output/
Output

PE0/EC0
PE1/EC1
PE2/RMC
PE3/NMI
PE4/PWM

PE5/TO/ADJ

(Port E)
6-bit port. Lower 4 bits
are for inputs; upper
2 bits are for outputs.
(6 pins)

External event inputs for timer/counter.
(2 pins)

Remote control reception circuit input.
Non-maskable interruption request input.
14-bit PWM output.
Rectangular wave output for 16-bit

timer/counter. Output for 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
Output/Output

PB0/CINT
PB1/CS0
PB2/SCK0
PB3/SI0
PB4/SO0
PB5/SCK1
PB6/SI1
PB7/SO1

(Port B)
7-bit I/O port in which I/O
can be set in a unit of
single bit. Also, an
uppermost bit (PB7)
exclusively for output.
Incorporation of pull-up
resistor can be set
through the software in a
unit of 4 bits.
(8 pins)

External capture input to 16-bit timer/counter.
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 –

CXP84120/84124

Symbol I/O Description

I/OPG0 to PG7

(Port G)
8-bit I/O port. I/O can be set in a unit of single bits. Incorporation of pull­up resistor can be set through the software in a unit of 4 bits.
(8 pins)

I/OPH0 to PH7

(Port H)
8-bit I/O port. I/O can be set in a unit of single bits. Incorporation of pull­up resistor can be set through the software in a unit of 4 bits.
(8 pins)

I/O/Input

PI0/INT0

to

PI3/INT3

I/O

PI4 to PI7

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

Output

XTAL

Input

Crystal connectors for 32kHz timer/counter clock generation circuit.
Connect a 32kHz crystal oscillator between TEX and TX.
For usage as event input, connect clock oscillation source to TEX, and
open TX.

TEX

OutputTX
Input Low-level active, system reset.

RST

NC. Under normal operating conditions, connect to VDD.

NC

Input Reference voltage input for A/D converter.

AVREF

A/D converter GND.

AVss

Positive power supply.

VDD

GND

Vss

(Port I)
8-bit I/O ports. I/O can be set in a unit of single
bit. Incorporation of pull-up resistor can be set
through the software in a unit of 4 bits.
(8 pins)

External interruption
request inputs.

– 6 –

CXP84120/84124

Port B

Data bus

RD (Port B)

Port B direction

IP

Port B data

Pull-up resistance

"0" when reset

"0" when reset

∗

Pull-up transistors

approx. 10kΩ

∗

Schmitt input

CINT
CS0
SI0
SI1

8 pins

Hi-Z

Hi-Z

When reset

PA0/AN0

to

PA7/AN7

PB0/CINT
PB1/CS0
PB3/SI0
PB6/SI1

Port B

4 pins

2 pins

Hi-Z

PB2/SCK0
PB5/SCK1

Data bus

RD (Port A)

Port A direction

IP

Port A data

Pull-up resistance

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. 10kΩ

∗

Input/Output Circuit Formats for Pins

Port A

Pin

Circuit format

Data bus

RD (Port B)

IP

Port B output
selection

"0" when reset

∗

Pull-up transistors

approx. 10kΩ

∗

Schmitt input

SCK in

Port B data

Port B direction

"0" when reset

Pull-up resistance

"0" when reset

SCK OUT

Output enable