CXP84332 Datasheet, PDF (9/19 Pages) Sony Corporation – CMOS 8-bit Single Chip Microcomputer

Pin
PI0/INT0
to
PI3/INT3
4 pins
Circuit format
Port I
Pull-up resistance
∗
"0" when reset
Port data
Port direction
"0" when reset
Data bus
RD
INT0
INT1
INT2
INT3
IP
∗ _{Pull-up transistors}
approx. 10kΩ
CXP84332/84340
When reset
Hi-Z
EXTAL
XTAL
2 pins
EXTAL
XTAL
TEX
TX
TEX
TX
2 pins
RST
1 pin
• Diagram shows circuit
IP
IP
composition during oscillation.
Oscillation
• Feedback resistor is removed
during stop.
• Diagram shows circuit
composition during oscillation.
IP
IP
• When the operation of the oscillation
circuit is stopped by the software, the
feedback resistor is removed, and
TEX and TX become "Low" level and
"High" level respectively.
Oscillation
Pull-up resistor
OP Mask option
IP
Schmitt input
Low level
–9–