Sony CXP5078, CXP5076 Datasheet

CMOS 4-bit Single Chip Microcomputer

Description

CXP5076/5078 is a CMOS 4-bit microcomputer which consists of 4-bit CPU, ROM, RAM, I/O port, 8-bit timer, 8-bit timer/counter, 18-bit time base timer, 8-bit serial I/O, vector interruption, power on reset function, liquid crystal displayer (LCD) controller/driver, D/A conversion 14-bit PWM output port, a remote control reception circuit with noise eliminating circuit, 3-bit A/D converters, a 32kHz timer/event counter and a power supply voltage detection reset function. They are integrated into a single chip with the standby function, etc. which are to be operated at a low power consumption.

Features

• Instruction cycle 1.9µs/4.19MHz

122 µs/32kHz (Possible to select with the program)

• ROM capacity 8192 × 8 bits (CXP5078)

6144 × 8 bits (CXP5076)

• RAM capacity 448 × 4 bits (Including stack, display area)

• 43 general purpose I/O ports

• 8 high current output ports

• LCD controller/driver (Possible to direct drive)

— Possible to select with the program the segment output of 16 to 32

— Possible to select with the program the duty of static, 1/2, 1/3 and 1/4

— Possible to select with the program the bias of 1/2, 1/3

• 14-bit PWM output for D/A conversion

• Remote control reception circuit

• 3-bit A/D converter (8 channels per circuit)

• 32kHz timer/event counter

• Power supply voltage detection reset function

• Low voltage operation (2.5V) ..... when operating in 122µs/32kHz

• Rich wake-up function

• 8-bit/4-bit variable serial I/O

• Arithmetic and logical operations possible between the entire ROM area, I/O area and the accumulator by

means of the memory mapped I/O

• 8-bit timer, 8-bit timer/event counter and 18-bit time base timer, independently controlled

• 2 kinds of power down modes of sleep and stop

• Power on reset circuit (mask option)

• Provided with 80 pin plastic QFP

• Provided with 80 pin piggyback QFP (CXP5070)

Structure

Silicon gate CMOS IC

– 1 –

E88037A78-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.

CXP5076/5078

80 pin QFP (Plastic)

For the availability of this product, please contact the sales office.

– 2 –

CXP5076/5078

Block Diagram

PORT A PORT B PORT C PORT D PORT E PORT F PORT G PORT H PORT I

44 44

(Common with A/D

converter analog input) (Input and output is possible by bit unit)

(Common with segment

output S27 to S24)

(Common with segment

output S31 to S28)

(Common with segment

output S19 to S16)

(Common with segment

output S23 to S20)

(Common with A/D

converter analog input)

(Input and output is

possible by port unit)

44 4

(Input and output is possible by port unit)

448 × 4

bits

Resister

Data memory

Stack

Data memory

ALU

Accumulator

Flag

Timer (8)

Sub time (8)

Timer/Counter (8)

Serial I/O (8)

Interrupt control

Program counter (13)

Program memory 8192 × 8 bits (CXP5078) 8144 × 8 bits (CXP5076)

PWM (14)

A/D Converter

Remote control receiving

Instruction control

Time base timer (18)

Clock control

32kHz timer/ event counter

Port X Port Y

LCD controller/ driver

16 16 4

VL VLC1 VLC2 VLC3

EXTAL XTAL

TEX TX

(Common with serial I/O)

(Common with port C, port D, port G, port H)

SEG16 to SEG31

SEG0 to SEG15

COM0 to COM3

PX2/SI

PX1/SO

PX0/SC

PY3/EC

PY2/WP

PY1/PWM

PY0

INT

RST

REF

RMC

– 3 –

CXP5076/5078

Pin Configuration (Top View)

PG1/SEG18 PG2/SEG17 PG3/SEG16

SEG15 SEG14 SEG13 SEG12 SEG11 SEG10

SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1

SEG0 COM3 COM2 COM1 COM0

LC1

PD1/SEG30 PD0/SEG31 PY3/EC PY2/WP

PE2 PE1 PE0 PF3 PF2 PF1 PF0 PA3

PA1 PA0 PX2/SI PX1/SO PX0/SC NC PB3/AD7 PB2/AD6

LC2

LC3

RMC

INT

XTAL

EXTAL

RST

AD0/PI0

AD1/PI1

AD2/PI2

AD3/PI3

AD4/PB0

AD5/PB1

PG0/SEG19

PH3/SEG20

PH1/SEG22

PH0/SEG23

REF

TEX

PC3/SEG24

PC2/SEG25

PC1/SEG26

PC0/SEG27

PD3/SEG28

PD2/SEG29

2 3 4

5 6 7 8 9

10 11 12 13 14 15 16 17 18 19

20 21 22

PA2

PY0 PE3

PY1/PWM

PH2/SEG21

Note) Do not make any connections to NC pins.

– 4 –

CXP5076/5078

Pin Description

Symbol Name I/O Equivalent Circuit Description

Supply voltage Grounding

voltage

Clock input

Clock output

Reset

External interrupt

Remote control input

Port X2 Serial input

Port X1 Serial output

— —

I/O

Positive voltage supply pin GND pin Clock oscillation circuit input pin.

Connect the crystal oscillator or ceramic resonator between the EXTAL and XTAL. When using as the external clock input, connect the clock oscillation source to the EXTAL pin and open the XTAL pin.

Clock oscillation circuit output pin

Serves as the incorporated power-on reset circuit output pin. When inputting a reset signal from the outside, provide 2 instruction cycles or longer of an "L" level (0V).

Serves the interrupt input pin. Permits the selection with a program of the edge and the level modes.

Remote control receiver input pin Doubles as a serial interface (8 bits)

input pin and as bit "2" (input) of port X.

Doubles as a serial interface (8 bits) output pin and as bit "1" (input) of port X. (SO output possible to inhibit with the program.)

EXTAL

XTAL

Mask option

(Note 2)

Data

Output Select

Disable

Standby

(Only during tri-state output)

VDD VSS

EXTAL

XTAL

RST

INT

RMC

PX2/SI

PX1/SO

Output pull-up resistor (P-ch Tr) N-ch Tr output Schmitt inverter input

See Note 2) for the output circuit format. Inverter input

Schmitt inverter input

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CXP5076/5078

Symbol Name I/O Equivalent Circuit Description

Port X0 Serial clock

Port Y3 Event count input

Port Y2 Wake-up input

Port Y1 PWM generator output

Port Y0

Port A

Port B Analog voltage input

Port E

Port F

Port I Analog voltage input

I/O

(Note 2)

Data

Output Select

Disable

Standby

(Only during tri-state output)

PX0/SC

PY3/EC

PY2/WP

PY1/PWM

PY0

PA0 to PA3

PB0/AD4 to PB3/AD7

PE0 to PE3

PF0 to PF3

PI0/AD0 to PI3/AD3

See Note 2) for the output circuit format. Schmitt inverter input

(Note 2)

Data

Output Select

Disable

Standby

(Only during tri-state output)

See Note 2) for the output circuit format. Inverter input

See Note 1) for the output circuit format.

Schmitt inverter input

Doubles as shift clock input/output pin for the serial interface and as bit "0" (input) of port X.

Doubles as event counter (8 bits) input pin and as bit "3" (input) of port Y.

Doubles as wake-up input pin to release the standby state and as bit "2" (input) of port Y.

Doubles as PWM generator (14 bits) output pin and as bit "1" (output) of port Y.

Output pin for bit "0" of port Y. This 4-bit input/output port permits its

each individual bit to be programmed to serve either as input or output. For the output format, a tri-state and pullup resistor possible to be programmed, and it is also used as the standby resetting pin.

This 4-bit input/output port has the functions that are equivalent to those of port A. It is also used for A/D converter input.

This 4-bit input/output port permits its each individual port to be programmed to serve either as input or output. For the output format, a tri-state and pullup resistor possible to be programmed.

This 4-bit input/output port has the functions that are equivalent to those of port E.

This 4-bit input/output port has the functions that are equivalent to those of port E. It is also used for A/D converter input.

(Note 1)

Data

Output Select

Disable

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CXP5076/5078

Symbol Name I/O Equivalent Circuit Description

Port D Segment output

Port C Segment output

Port H Segment output

Port G Segment output

Segment output

Common output

Power supply for LCD

Cut-off output

—

Doubles as a 4-bit output port (For the output format, the inverter and pull-up resistor possible to be programmed.) and as the segment signal output pin for LCD.

Doubles as a 4-bit output port (The output format is equivalent to port D.) and as the segment signal output pin for LCD.

Doubles as a 4-bit output port (The output format is equivalent to port D.) and as the segment signal output pin for LCD. (Possible to designate in bit units.)

Doubles as a 4-bit output port (The output format is equivalent to port D.) and as the segment signal output pin for LCD.

Segment signal output pin for LCD

Common signal output pin for LCD

Bias power supply pin for LCD

Control pin which cuts off the current input to the bias resistor for the external LCD during standby.

Segment

(Note 3)

Data

Output Select

Standby

Port C, D, G, H

LCD/PORT select

PD3/ SEG31 to PD0/ SEG28

PC3/ SEG27 to PC0/ SEG24

PH3/ SEG23 to PH0/ SEG20

PG3/ SEG19 to PG0/ SEG16

SEG0 to SEG15

COM0 to COM3

VLC1 to VLC3

The transfer gate input signal is controlled based on 1/2, 1/3 bias method in advance.

See Note 3) for the output circuit format.

Transfer gate output

The transfer gate input signal is controlled based on 1/2, 1/3 bias methods in advance.

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