M30222 Datasheet, PDF (52/237 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

dUevnedloerpment
MITSUBISHI MICROCOMPUTERS
Specifications in this manual are tentative and subject to change
M30222 Group
Rev. G
Overview of Interrupts
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Figure 1.34 shows the Key input mode register. With bits 0 and 1 of this register, it is possible to select both
edges or the fall edge of the key input for P6. Port P6 is set for pull-up using the pll-up control register.
Key input mode register
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
KUPM
Address
012616
When reset
XXXXXX00 2
Bit symbol
P6KIS
P6KIE
Bit name
P6 key input select bit (Note)
P6 key input enable bit
Function
0 : Falling edge
1 : Two edges
0 : Disable
1 : Enable
Nothing is assigned. Write "0" when writing to these bits.
The value is indeterminate when read.
RW
__
Note :
If this bit is set for “Two edges” when the corresponding port has been
specified to have a pull up, the port is automatically pulled high intermittently
by the operating subclock.
The pull-up resistance is not connected for pins that are set for output from
peripheral functions, regardless of the setting in the pull-up control register
Fig. 1.34. Key input mode register
1-53