Datasheet

78K0/Kx2-L CHAPTER 4 PORT FUNCTIONS
R01UH0028EJ0400 Rev.4.00 166
Sep 27, 2010
Figure 4-29. Block Diagram of P125
P125/RESET
WR
PU
RD
WR
PM
PU125
RSTM
VDD
P-ch
PU12
RSTMASK
Internal bus
Internal reset
PU12: Pull-up resistor option register 12
RD: Read signal
WR××: Write signal
RSTMASK: Reset pin mode register
Caution Because RESET/P125 is set in the external reset input immediately after release of reset, if a reset
signal is generated during low level input, the reset status continues until the input rises to the high
level.
Remark After reset, the external reset function and the pull-up resistor are enabled (RSTM = 0, PU125 = 1). Set
RSTM bit to 1 when using as a port function.
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