M16C29 Datasheet, PDF (351/499 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/Tiny SERIES

M16C/29 Group
19. 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 19.11 NDDR and P17DDR Registers
Rev. 1.12 Mar.30, 2007 ^{page 327} of 458
REJ09B0101-0112