M16C26A Datasheet, PDF (244/352 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/26A Group (M16C/26A, M16C/26B, M16C/26T)
16. Programmable I/O Ports
NMI Digital Debounce Register ^(1,2)
b7
b0
Symbol
NDDR
Address
033E16
After Reset
FF16
Function
If the set value =n,
- n = 0 to FE16; a signal with pulse width, greater than
(n+1)/f8, is input into NMI / SD
- n = FF16; the digital debounce filter is disabled and all
signals are input
Setting Range RW
0016 to FF16
RW
NOTES:
1. Set the PACR register by the next instruction after setting the PRC2 bit in the PRCR register to "1"(write
enable).
2. When using the NMI interrupt to exit from stop mode, set the NDDR registert to "FF16" before entering
stop mode.
P17 Digital Debounce Register⁽¹⁾
b7
b0
Symbol
P17DDR
Address
033F16
After Reset
FF16
Function
If the set value =n,
- n = 0 to FE16; a signal with pulse width, greater than
(n+1)/f8, is input into INPC17/ INT5
- n = FF16; the digital debounce filter is disabled and all
signals are input
Setting Range RW
0016 to FF16
RW
NOTE:
1. When using the INT5 interrupt to exit from stop mode, set the P17DDR registert to "FF16" before entering
stop mode.
Figure 16.6.1. NDDR and P17DDR Registers
Rev. 2.00 Feb.15, 2007 ^{page 227} of 329
REJ09B0202-0200