5 gpio interrupt set register (int2gpic) – Renesas SH7781 User Manual
Page 352
10. Interrupt Controller (INTC)
Rev.1.00 Jan. 10, 2008 Page 322 of 1658
REJ09B0261-0100
10.3.5
GPIO Interrupt Set Register (INT2GPIC)
INT2GPIC enables interrupt requests input from the pins 0 to 5 of port E, pins 1 to 4 of port H,
pins 6 and 7 of port L, as GPIO interrupts.
A GPIO interrupt is a low-active interrupt. Enable interrupt requests after setting the pins
corresponding to the port control register (E, H, and L) used for GPIO interrupts to be input pins
from ports For the port control registers, see section 28, General Purpose I/O Ports (GPIO).
The timing required to reflect the register value is guaranteed by writing to this register, and then,
reading from this register once (the interrupt request is reflected).
16
17
18
19
20
21
22
23
24
25
26
27
28
29
31
30
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
R/W
R/W
R/W
R/W
R
R
R
R
R/W
R/W
R
R
R
R
R
R
Bit:
Initial value:
R/W:
0
1
2
3
4
5
6
7
8
9
10
11
12
13
15
14
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
R/W
R/W
R/W
R
R
R
R
R
R/W
R/W
R/W
R
R
R
R
R
Bit:
Initial value:
R/W:
Table 10.11 shows the correspondence between bits in INT2GPIC and the functions.
Table 10.11 Correspondence between Bits in INT2GPIC and GPIO Interrupts
Bit Name
Initial
Value R/W Function
Description
31 to
26
⎯ All
0
R/W
Reserved
These bits are always read as 0.
The write value should always be 0.
25
PORTL7E 0
R/W
Enables interrupt request from pin 7
of port L.
24
PORTL6E 0
R/W
Enables interrupt request from pin 6
of port L.
23 to
20
⎯ All
0
R/W
Reserved
These bits are always read as 0.
The write value should always be 0.
Enables GPIO interrupt
request for each pin.
0: Disable the
corresponding interrupt
request
1: Enable the
corresponding interrupt
request
19
PORTH4E 0
R/W
Enables interrupt request from pin 4
of port H.