Renesas M16C Series User Manual

Key-Input Interrupt
M30240 Group
Rev.1.00 Sep 24, 2003 Page 272 of 360
Figure 2.120: Key-input interrupt-related registers
b7 b6 b5 b4 b3 b2 b1 b0
Bit name FunctionBit symbol
WR
ILVL0
IR
Interrupt priority level
select bit
Interrupt request bit
0 : Interrupt not requested
1 : Interrupt requested
ILVL1
ILVL2
Nothing is assigned.
These bits can neither be set nor reset. When read, their contents are
indeterminate.
(Note1)
Note 1: This bit can only be reset (= 0). It cannot
be set
(= 1).
0 0 0 : Level 0 (interrupt disabled)
0 0 1 : Level 1
0 1 0 : Level 2
0 1 1 : Level 3
1 0 0 : Level 4
1 0 1 : Level 5
1 1 0 : Level 6
1 1 1 : Level 7
b2 b1 b0
Interrupt control register (Note 2)
Symbol
Address
When reset
KUPIC
004D
16
XXXX0000
2
Symbol Address When reset
PDi (i = 0,
1)
03E216, 03E316 0016
Port Pi direction register
Bit name FunctionBit symbol WR
b7 b6 b5 b4 b3 b2 b1 b0
PDi_0 Port Pi0 direction register
PDi_1 Port Pi
1 direction register
PDi_2 Port Pi
2 direction register
PDi_3 Port Pi
3 direction register
PDi_4 Port Pi
4 direction register
PDi_5 Port Pi
5 direction register
PDi_6 Port Pi
6 direction register
PDi_7 Port Pi
7 direction register
0 : Input mode
(Functions as an input port)
1 : Output mode
(Functions as an output port)
(i = 0, 1)
Pull-up control register 0
Symbol Address
When reset
PUR0
03FC16
0016
Bit name FunctionBit symbol WR
b7 b6 b5 b4 b3 b2 b1 b0
PU00 P00 to P03 pull-up
The corresponding port is pulled high
with a pull-up resistor
0 : Not pulled high
1 : Pulled high
PU01 P04 to P07 pull-up
PU02 P1
0 to P13 pull-up
PU03 P1
4 to P17 pull-up
PU04 P2
0 to P23 pull-up
PU05 P2
4 to P27 pull-up
PU06 P3
0 to P33 pull-up
PU07 P3
4 to P37
Note 2: To rewrite the interrupt control register, do so when it would not generate an interrupt
request for that register. See the Interrupt precautions section for more details.

Renesas M16C Series Specifications

General

Brand	Renesas
Model	M16C Series
Category	Computer Hardware
Language	English