NEC V850ES/KE1+ User Manual page 30

(q) Power-on-clear (POC) circuit
The power-on-clear circuit generates an internal reset signal at power on.
The power-on-clear circuit compares the supply voltage (V
an internal reset signal when V
(r) Ports
As shown below, the following ports have general-purpose port functions and control pin functions.
Port I/O
P0 7-bit I/O
P3 8-bit I/O
P4 3-bit I/O
P5 6-bit I/O
P7 8-bit input
P9 9-bit I/O
PCM 2-bit I/O
PDL 8-bit I/O
30
CHAPTER 1 INTRODUCTION
< V .
DD POC
NMI, external interrupt, timer output
Serial interface, timer I/O, external interrupt, A/D converter trigger
Serial interface
Timer I/O, key interrupt function, real-time output function
A/D converter analog input
Serial interface, timer I/O, external interrupt, key interrupt function
Clock output
User's Manual U16896EJ2V0UD
) and detection voltage (V
DD
Alternate Function
−
), and generates
POC