Sony CXP822P24 Datasheet

CXP822P24

CMOS 8-bit Single Chip Microcomputer

Description

The CXP822P24 is a CMOS 8-bit single chip
microcomputer integrating on a single chip an A/D
converter, serial interface, timer/counter, time base
timer, capture timer counter, fluorescent display tube
controller/driver, remote control reception circuit, CTL
duty detection circuit, 14-bit PWM output and high­speed output circuit besides the basic configurations
of 8-bit CPU, PROM, RAM, and I/O port.

The CXP822P24 also provides sleep/stop function
that enables lower power consumption.

CXP822P24 is the PROM-incorporated version of
the CXP82224 with built-in mask ROM. This provides
the additional feature of being able to write directly into
the program. Thus, it is most suitable for evaluation
use during system development and for small­quantity producton.

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 PROM capacity 24K bytes

• Incorporated RAM capacity 704 bytes (including fluorescent display area)

• Peripheral functions

— A/D converter 8-bit, 8-channel, 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

— Fluorescent display tube controller/driver Maximum of 384 segment display possible

1 to 16-digit dynamic display
Dimmer function
High voltage drive output (40V)
Incorporated pull-down resistor
Hardware key scan function
Maximum of 16 × 8 key matrix compatible

— Remote control reception circuit Incorporated noise elimination circuit

Incorporated 8-bit, 6-stage FIFO for measurement data
— PWM output circuit 14 bits, 1 channel
— CTL duty detection circuit
— High-speed output circuit Precision of 800ns at 10MHz, 4 outputs.

• Interruption 19 factors, 15 vectors, multi-interruption possible

• Standby mode Sleep/stop

• Package 100-pin plastic QFP

Structure

Silicon gate CMOS IC

100 pin QFP (Plastic)

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.

– 1 –

E93242A78-PS

CXP822P24

V

SS

V

DD

RST

XTAL
EXTAL
TX

TEX

PA0 to PA7
8

PB0 to PB7
8

PORT APORT B

CLOCK GEN./

SYSTEM CONTROL

SPC700

CPU CORE

PC0 to PC7
8

PD0 to PD7
8

PORT C

RAM

704 BYTES

PROM

24K BYTES

PE0 to PE5
6

PORT D

PE6 to PE7

PF0 to PF7

2

8

PORT E

32kHz

PRESCALER/

PG0 to PG7
8

PORT F

PH0 to PH7
8

PORT G

TIMER/COUNTER

TIME BASE TIMER

PI0 to PI7
8

PORT H

PULSE

REALTIME

GENERATOR

CH0 CH1

2

PORT I

4

PG3/RTO3

to

PG0/RTO0

REF

SS

Block Diagram

PE3/INT3/NMI

PE2/INT2

PE1/EC1/INT1

PE0/EC0/INT0

AV

AV

A/D CONVERTER

8

PA0/AN0 to

PA7/AN7

RAM

80 BYTES

DRIVER

FDP CONTROLLER/

8

8

24

T0 to T7

T8/S31 to

T15/S24

PD0/S0 to

PI7/S23

INTERRUPT CONTROLLER

FIFO

CTL DUTY DET

REMOCON

14 BIT PWM GENERATOR

VFDP

PE5/CTL

PE7/DDO

PE6/PWM

PE4/RMC

2 2 2

FIFO

UNIT 0

SERIAL

INTERFACE

PB3/SI0

PB4/SO0

PB1/CSO

PB2/SCK0

2

8 BIT TIMER/COUNTER 0

SERIAL INTERFACE UNIT 1

PB6/SI1

PB7/SO1

PB5/SCK1

PE0/EC0

2

8 BIT TIMER 1

16 BIT CAPTURE

TIMER/COUNTER 2

PE7/TO

PB0/CINT

PE1/EC1

– 2 –

Pin Assignment (Top View)

PG7

PE0/EC0/INT0

PG6

PG5

PG3/RTO3

PG4

PG2/RTO2

PG0/RTO0

PG1/RTO1

SS

V

CXP822P24

FDP

DD

pp

V

V

V

T0

T1

T2

T3

T4

T5

T6

PE1/EC1/INT1

PE2/INT2

PE3/INT3/NMI

PE4/RMC

PE5/CTL

PE6/PWM

PE7/TO/DDO/ADJ

PB0/CINT

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

PH0
PH1

PH2
PH3
PH4
PH5
PH6

10
11
12
13
14
15
16
17
18
19

20
21
22

23

24
25
26
27
28

29
30

100

99

98

96

97

1

2
3
4

5
6
7
8
9

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

80

79
78
77
76
75
74

73
72

71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55

54
53
52
51

T7
T8/S31
T9/S30

T10/S29
T11/S28
T12/S27
T13/S26
T14/S25
T15/S24
P17/S23
P16/S22
P15/S21

P14/S20

P13/S19
P12/S18
P11/S17
P10/S16
PF7/S15
PF6/S14
PF5/S13
PF4/S12
PF3/S11

PF2/S10
PF1/S9
PF0/S8
PD7/S7

PD6/S6

PD5/S5
PD4/S4
PD3/S3

31

32

PH7

33

34

PA0/AN0

PA1/AN1

35

PA2/AN2

37

36

PA4/AN4

PA3/AN3

38

39

RST

PA5/AN5

40

XTAL

EXTAL

Note) Vpp (Pin 90) must be connected to VDD.

– 3 –

41

SS

V

42

TX

43

44

TEX

46

45

PA6/AN6

PA7/AN7

REF

AV

47

SS

AV

48

PD0/S0

49

PD1/S1

50

PD2/S2

Pin Description

Symbol I/O Functions

CXP822P24

PA0/AN0

to

PA7/AN7
PB0/CINT

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

PC0/KR0

to

PC7/KR7

PD0/S0

to

PD7/S7

I/O/
Analog input

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

I/O/Input

Output/Output

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

(Port B)
8-bit I/O port. I/O for lower
7bits can be set in a unit
of single bits. Uppermost
bit (PB7) is for output only.
(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.

(Port D)
8-bit output port.
(8 pins)

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

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).

Serves as key return inputs when operating
key scan with FDP segment signal.

FDP segment signal outputs.

PE0/INT0/EC0
PE1/INT1/EC1

PE2/INT2
PE3/INT3/NMI
PE4/RMC

PE5/CTL
PE6/PWM

PE7/TO/DDO/
ADJ

PF0/S8

to

PF7/S15

PG0/PTO0

to

PG3/RTO3

PG4 to PG7

Input/Input/Input
Input/Input/Input

Input/Input
Input/Input/Input
Input/Input

Input/Input
Output/Output

Output/Output/
Output/Output

Output/Output

I/O/Output

I/O

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

(Port F)
8-bit output port.
(8 pins)

(Port G)
8-bit I/O port. I/O can be
set in a unit of single bits.
Data for the lower 4 bits
are gated with the contents
of RTO or OR-gate output.
(8 pins)

External event inputs for
Inputs for
external

timer/counter.

(2 pins)
interruption
request.
(4 pins)

Non-maskable

interruption request input.
Remote control reception circuit input.
Input for CTL duty direction circuit.
14-bit PWM output.
Output for the 16-bit timer/counter

rectangular waves, CTU duty detection,
and 32kHz oscillation frequuency
demultiplication.

FDP segment signal

outputs.

Outputs for real-time pulse generator (RTG).
Functions as high-precision, real-time pulse
output port.
(4 pins)

– 4 –

Symbol I/O Functions

(Port H)

PH0 to PH7

I/O

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

CXP822P24

PI0/S16

to

PI7/S23
T8/S31

to

T15/S24
T0 to T7
VFDP
EXTAL
XTAL

TEX
TX

RST
AVREF
AVSS
VDD

Vpp

Output/Output

Output/Output

Output

Input
Output

Input
Output

Input
Input

(Port I)
8-bit output ports. FDP segment signal outputs.
(8 bits)

Outputs for FDP timing (digit) signals/sagment signals.

FDP timing signal outputs.
FDP voltage supply when incorporated resistor is set by mask option.

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.
Reference voltage input for A/D converter.
A/D converter GND.
Vcc supply.
Vcc supply for incorporated PROM writing.

Connect to VDD during normal operation.

VSS

GND.

– 5 –

Input/Output Circuit Formats for Pins

CXP822P24

Pin

PA0/AN0

to

PA7/AN7

8 pins

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

Port A

Data bus

Port B

Port A data

Port A direction

"0" when reset

RD (Port A)

Port A input selection

"0" when reset

"0" when reset

Data bus

Circuit format

A/D converter

Port B data

Port B direction

Input multiplexer

Schmitt input

When reset

IP Input protection circuit

Hi-Z

IP

Hi-Z

4 pins

PB2/SCK0
PB5/SCK1

2 pins

Port B

Port B output selection

"0" when reset

Port B data

Port B direction

"0" when reset

Data bus

RD (Port B)

RD (Port B)

SCK out

Output enable

SCK in

CINT
CS0
SI0
SI1

IP

Hi-Z

Schmitt input

– 6 –

CXP822P24

PB4/SO0

1 pin

PB7/SO1

1 pin

Port B

Port B output selection

"0" when reset

Port B direction

"0" when reset

Data bus

RD (Port B)

Port B

Port B output selection

"1" when reset

Port B data

"1" when reset

Data bus

RD (Port B)

Output enable

Port B data

Output enable

SO

SO

Circuit format

Internal reset signal

IP

∗

∗

Pull-up transistor approx.

200kΩ

When resetPin

Hi-Z

High level

PC0/KR0

to

PC7/KR7

8 pins

PE0/EC0/INT0
PE1/EC1/INT1
PE2/INT2
PE3/INT3/NMI
PE4/RMC
PE5/CTL

6 pins

Port C

Data bus

Port E

Port C data

Port C direction

"0" when reset

RD (Port C)

Key input signal

Schmitt input

IP

∗

IP

∗

High current drive of 12mA possible

EC0/INT0
EC1/INT1
INT2
INT3/NMI
RMC
CTL

Data bus

RD (Port E)

Hi-Z

Hi-Z

– 7 –