SH7764 Datasheet, PDF (488/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 13 Interrupt Controller (INTC)
13.3.10 Interrupt Source Register 0 (Mask State is not affected) (INT2A0)
INT2A0 (mask state is not affected) is a 32-bit read-only register that indicates interrupt source
modules. Even if interrupt masking is set in the interrupt mask register, INT2A0 indicates a source
module in a corresponding bit (the corresponding interrupt is not generated). If source indication is
not necessary depending on the state of the interrupt mask register, use INT2A1.
Bit: 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
—
—
—
—
—
— GPIO
—
SRC FLCTL — ATAPI SSI_B —
SSI_A SSI_A
CH2 CH1
Initial value: ₀
0
0
0
0
0
—
0
—
—
0
—
—
0
—
—
R/W: R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Bit: 15 14 13 12
SSI_A SSI_A
CH0 DMA0
G2D
—
Initial value: —
—
—
0
R/W: R
R
R
R
11 10
—
—
0
0
RR
9
8
7
6
5
4
3
2
1
0
— DMAC H-UDI — WDT SCIF1 SCIF0 — TMU1 TMU0
0
—
—
0
—
—
—
0
—
—
R
R
R
R
R
R
R
R
R
R
Bit
31 to
26
25
24
23
22
21
20
19
18
17
16
Initial
Bit Name Value
R/W Function
Description
—
GPIO
—
SRC
FLCTL
—
ATAPI
SSI_B
—
All 0
R
Undefined R
0
R
Undefined R
Undefined R
0
R
Undefined R
Undefined R
0
R
Reserved
These bits are always read as 0.
Indicates GPIO interrupt source
Reserved
This bit is always read as 0.
Indicates SRCOVF interrupt
source
Indicates FLCTL interrupt source
Reserved
This bit is always read as 0.
Indicates ATAPI interrupt source
Indicates SSI_B interrupt source
Reserved
This bit is always read as 0.
Indicates interrupt
sources for each
peripheral module
(INT2A0 is not affected
by the state of the
interrupt mask register).
0: No interrupts
1: Interrupts are
generated
Note: Reading the
INTEVT code
notified to the
CPU directly can
identify interrupt
sources. In this
case, reading
INT2A0 is not
necessary.
SSI_ACH Undefined R
2
Indicates SSI_A (SSICH2)
interrupt source
SSI_ACH Undefined R
1
Indicates SSI_A (SSICH1)
interrupt source
Rev. 1.00 Nov. 22, 2007 Page 432 of 1692
REJ09B0360-0100