- 2-8 -
INTERNAL BLOCK DIAGRAM OF ICs
■
CXP 84332
■
PIN DESCRIPTION
A/D CONVERTER
AN0 to AN7
8
A
Vss
AV
REF
PI0/INT0
INTERRUPT
CONTROLLER
PI1/INT1
PI2/INT2
PI3/INT3
PE3/NMI
PE4/PWM
PE2/RMC
PB1/CS0
PB3/SI0
PB4/SO0
PB2/SCK0
PB6/SI1
PB7/SO1
PB5/SCK1
PE0/EC0
PE5/TO
PB0/CINT
PE1/EC1
14 BIT PWM GENERATOR
REMOCON
SPC700
CUP CORE
CLOCK GEN./
SYSTEM CONTROL
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
PH0 to PH7
PI0 to PI7
TEX
TX
EXT
AL
XT
AL
RST
V
DD
V
SS
PO
RT A
ROM
32K/40K BYTES
PRESCALER/
TIME BASE TIMER
32kHz
TIMER/COUNTER
RAM
1120 BYTES
SERIAL INTERFACE UNIT 1
16 BIT CAPTURE
8 BIT TIMER 1
8 BIT TIMER/COUNTER 0
TIMER/COUNTER 2
FIFO
FIFO
SERIAL
INTERFACE
UNIT 0
PO
RT B
PO
RT C
POR
T
D
PO
RT E
PO
RT F
PO
RT G
PO
RT H
PO
RT I
8
8
8
8
8
4
2
8
8
7
2
2
2 2
symbol
I/O
Description
PA0/AN0
to
I/O/Analog input
Analog inputs to A/D converter.(8 pins)
PA7/AN7
PB0/CINT
I/O/Input
External capture input to 16-bit timer/counter.
PB1/CS0
I/O/Input
Chip select input for serial interface(CH0).
PB2/SCK0
I/OI/O
Serial clock I/O (CH0).
PB3/SI0
I/O/Input
Serial data input (CH0).
PB4/SO0
I/O/Output
Serial data Output (CH0).
PB5/SCK1
I/OI/O
Serial clock I/O (CH1).
PB6/SI1
I/O/Input
Serial data input (CH1).
PB7/SO1
Output/Output
Serial data Output (CH1).
PC0 to PC7
I/O
(Port C)
8-bit I/O port. I/O can be set in a unit of single bits. 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 A)
8-bit I/O port. I/O can be set in
a unit of single bits.
Incorporation of the pull-up
resistance can be set through
the software in a unit of 4 bits.
(8 pins)
(Port B)
Lower 7-bit I/O port in which
I/O can be set in a unit of
single bits. 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)
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