M30280F6HP RENESAS [Renesas Technology Corp], M30280F6HP Datasheet - Page 385

• Manufacturer Part Number: M30280F6HP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

M
R
R
20.7 Timer S
e
E
1
. v
Figure 20.4 IC/OC Interrupt i Flow Chart
J
6
0
20.7.1 Rewrite the G1IR Register
C
2
9
2 /
Bits in the G1IR register are not automatically set to 0 (no interrupt requested) even if a requested inter-
rupt is acknowledged. Set each bit to 0 by program after the interrupt requests are verified.
The IC/OC interrupt is generated when any bit in the G1IR register is set to 1 (interrupt requested) after all
the bits are set to 0. If conditions to generate an interrupt are met when the G1IR register holds the value
other than 00
request again, clear the G1IR register to 00
register to 0.
Figure 20.4 shows an example of IC/OC interrupt i processing.
0 .
B
0
0
8
0
Subject instructions: AND, BCL
G
4
J
7
a
NOTES:
o r
0 -
. n
u
1. Example for the interrupt operation when using the channel i waveform generating interrupt and
2
3
p
0
channel j time measurement interrupt.
, 1
0
(
M
2
0
1
16
0
6
, the IC/OC interrupt request will not be generated. In order to enable an IC/OC interrupt
7
C
2 /
page 365
, 8
M
1
6
Process channel j time measurement interrupt
C
Process channel i waveform generating interrupt
2 /
f o
8
3
) B
8
5
Set the G1IRj bit to "0"
Set the G1IRi bit to "0"
Interrupt completed
G1IRi=1 ?
G1IRj=1 ?
Interrupt
G1IR=0 ?
16
. Use the following instructions to set each bit in the G1IR
Yes
Yes
Yes
(1)
No
No
No
20. Precautions