Sony CXP861P16 Datasheet

CMOS 8-bit Single-chip Microcomputer

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

Description

The CXP861P16 is a highly integrated CMOS 8-bit
single-chip microcomputer which is mainly composed
of an 8-bit CPU, PROM, RAM and I/O ports. This
microcomputer features many other high­performance circuits in a single-chip CMOS design,
including an A/D converter, clock synchronized serial
interface, UART, stepping motor controller, PWM
generator, 16-bit timer/counter, and watchdog timer.

Also, the CXP861P16 provides the power-on reset
function as well as the sleep/stop function which
enables to lower power consumption.

This IC is the PROM-incorporated version of the
CXP86116 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 production.

Structure

Silicon gate CMOS IC

CXP861P16

80 pin QFP (PIastic)

Features

• Instruction set which supports a wide array of data types 213 types

— 16-bit arithmetic instruction/multiplication and division instructions/boolean bit operation

• Minimum instruction cycle During operation 400ns/instruction 10MHz

• Incorporated PROM capacity 16K bytes

• Incorporated RAM capacity 576 bytes

• Peripheral functions

— A/D converter 8-bit, 8-channel, successive comparison type (conversion time: 32µs at 10MHz)

— Serial interface Universal Asynchronous Receiver Transmitter (baud-rate generator incorporated)

8-bit clock synchronized type
— Stepping motor controller 2-channel stepping motor excitation output
— PWM output 2-channel 12-bit output
— Timer 2-channel 16-bit capture timer/counter

2-channel 16-bit timer/counter (step rate generation function incorporated)

19-bit time-base timer
— Watchdog timer

• Interrupts 17 factors, 15 vectors, multiple interrupt processing

• Standby mode SLEEP/STOP

• Package 80-pin plastic QFP

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 –

E95308-ST

CXP861P16

DD

Vpp
Vss

V
MP
RST
XTAL
EXTAL

NMI

PG3/INT3
PG2/INT2
PI3/INT1
PI1/INT0

PA0 to PA7
8

CL OCK GE NERA TOR/

SPC700

SYSTEM CONTROL

CPU CORE

PB0 to PB7
8

PORT A

PORT B

PC0 to PC7
8

PORT C

PD0 to PD7
8

PORT D

PE0 to PE7
8

PORT E

RAM

PF4 to PF7

PF0 to PF3

4

4

PORT F

2
4

PORT G

2

8

PG0, PG1

PG2 to PG5

PG6, PG7

PH0 to PH7

PORT H

576 BYTES

PRESCALER/

TIME BASE TIMER

4

PI0 to PI3

PORT I

PROM

16K BYTES

TIMER

WATCHDOG

CH-Y

MOTOR

STEPPING

CONTROLLER

PE7/Yd

PE6/Yc

PE5/Yb
PE4/Ya

PE3/Xd
PE2/Xc

INTERRUP T CONTROLLE R

CH-X

MOTOR

STEPPING

CONTROLLER

PE1/Xb
PE0/Xa

Block Diagram

SS

REF

DD

AV

AV

AV

UNIT

SERIAL

A/D CONVE RT ER

UART RECE IVER

GENE RATO R

UART BA UD RATE

UART TRANSMITTER

INTERFACE

1 6B IT TI MER/COUNTE R 0

1 6B IT TI MER/COUNTE R 1

1 6B IT TI MER/COUNTE R 3

1 6B IT TI MER/COUNTE R 2

1 2B IT P WM G ENE RATO R 0

1 2B IT P WM G ENE RATO R 1

8

PH5/S0

PH6/S1

PH1/TxD

PH0/RxD

PH4/SCK

PI0/EC0

PI2/EC1

PG4/TO0

PI1/CINT0

PG5/TO1

PG2/EC2

PI3/CINT1

PG3/EC3

PH3/PWM1

PH2/PWM0

PF0/AN0 to PF7/AN7

– 2 –

Pin Configuration (Top View)

CXP861P16

PA1
PA0
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
PD7
PD6
PD5
PD4
PD3
PD2

10
11
12
13
14
15
16
17
18
19

20
21
22
23

24

DD

V

Vss

Vpp

PA7

PA6

PA5

PA4

PA3

PA2

80

78

79

77

1

2
3
4

5
6
7
8
9

76

75

74

73

72

71

NMI

PE0/Xa

70

PE1/Xb

69

PE2/Xc

68

67

PE4/Ya

PE3/Xd

66

PE5/Yb

65

60
59
58

64
63
62

57
56
55
54
53

49
48
47
46
45
44

41

61

52
51
50

43
42

PE6/Yc
PE7/Yd
PG0
PG1
PG2/EC2/INT2
PG3/EC3/INT3
PG4/TO0
PG5/TO1
PG6
PG7
PI0/EC0
PI1/CINT0/INT0
PI2/EC1
PI3/CINT1/INT1
PF0/AN0
PF1/AN1
PF2/AN2
PF3/AN3
PF4/AN4
PF5/AN5
PF6/AN6
PF7/AN7
AV

DD

AVREF

25

PD1

26

PD0

27 28

PH7

29

PH6/SI

PH5/SO

31

30

PH4/SCK

MP

32

RST

33

SS

V

34

35

XTAL

36

EXTAL

PH3/PWM1

37

38

PH1/TxD

PH2/PWM0

Note) 1. Vpp (Pin 74) is always connected to VDD.

2. Vss (Pins 33 and 73) are both connected to GND.

3. MP (Pin 31) is always connected to VSS.

– 3 –

40

39

PH0/RxD

SS

AV

Pin Description

Symbol I/O Description

(Port A)

PA0 to PA7

Output

8-bit output port. 12mA sink current can be driven.
(8 pins)

(Port B)

PB0 to PB7

Output

8-bit output port.
(8 pins)

(Port C)

PC0 to PC7

I/O

8-bit I/O port. Enable to specify input/output by 4-bit unit.
(8 pins)

(Port D)

I/OPD0 to PD7

8-bit I/O port. Enable to specify input/output by 4-bit unit.
(8 pins)

CXP861P16

PE0/Xa

to

PE3/Xd
PE4/Ya

to

PE7/Yd
PF0/AN0

to

PF3/AN3
PF4/AN4

to

PF7/AN7
PG0

PG1

PG2/EC2/INT2
PG3/EC3/INT3

PG4/TO0
PG5/TO1

PG6
PG7

PH0/RxD

I/O/output

I/O/output

Input/input

Output/input

I/O

I/O/input/input

I/O/output

Output

I/O/input

(Port E)
8-bit I/O port. I/O can
be selected in a unit of
4 bits.
(8 pins)

(Port F)
Input port for the lower
4 bits; output port for
the upper 4 bits.
(8 pins)

(Port G)
I/O port for the lower
6 bits; output port for
the upper 2 bits.
Enable to specify
input/output by bit
unit.
(8 pins)

Output for stepping motor control circuit CH-X.
(4 pins)

Output for stepping motor control circuit CH-Y.
(4 pins)

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

External event input for
timer/counter 2 and 3.

Input for external
interrupt request.

Output for capture and timer/counter.
(2 pins)

Input for UART reception data.
PH1/TxD
PH2/PWM0
PH3/PWM1
PH4/SCK
PH5/SO
PH6/SI
PH7

I/O/output
I/O/output
I/O/output
I/O/I/O
I/O/output
I/O/input
I/O

(Port H)
8-bit I/O port. Enable
to specify input/output
by bit unit.
(8 pins)

– 4 –

Output for UART transmission data.

PWM output.

(2 pins)

I/O for serial clock.

Output for serial data.

Input for serial data.

Symbol I/O Description

CXP861P16

PI0/EC0
PI1/CINT0 /

INT0
PI2/EC1
PI3/CINT1/

INT1
NMI

EXTAL
XTAL

RST

MP
AVDD
AVREF
AVss
VDD

Input/input/input

Input
Input

Output

I/O

Input

Input

External event input for timer/counter 0.

(Port I)

Capture input for
timer/counter 0.

Input for external
interruption request.

4-bit input port.
(4 pins)

External event input for timer/counter 1.
Capture input for

timer/counter 1.

Input for external
interruption request.

Non-maskable interruption request for active at falling edge.
Crystal connection for system clock oscillation. Input the clock to EXTAL

pin and at the same time input the clock with reversed phase to XTAL
pin when clock is input externally.

System reset for active at low level. RST pin becomes I/O pin, and
outputs low level at the power on with power-on reset function executed.
(mask option)

Always connect to VSS.
Positive power supply for A/D converter.
Reference supply voltage input for A/D converter.
GND for A/D converter.

Positive power supply.
Vpp
Vss

Positive power supply for built-in PROM writing.

Connect to VDD for normal operation.

GND. Connect both of Vss to GND.

– 5 –

I/O Circuit Formats for Pins

Hi-Z control

Port A or
Port B data

High current
12mA
(only for port A)

Data bus

RD (Port C)

Port C I/O direction

IP

Input
protection
circuit

TTL level input

RD

Data bus

Port C data

Data bus

RD (Port D)

Port D I/O direction

IP

Port D data

Data bus

RD (Port D)

Port D I/O direction

IP

Port D data

Pin When resetCircuit format

Port A

CXP861P16

PA0 to PA7
PB0 to PB7

16 pins

PC0 to PC7

8 pins

Port B

Hi-Z

Port C

Hi-Z

Port D

PD0 to PD5

6 pins

PD6
PD7

2 pins

Port D

– 6 –

Hi-Z

Hi-Z