SH7280 Datasheet, PDF (1297/1726 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family

Section 23 Pin Function Controller (PFC)
23.1.17 IRQOUT Function Control Register (IFCR)
IFCR is a 16-bit readable/writable register that is used to control the IRQOUT pin output when it
is selected as the multiplexed pin function by port D control register H4 (PDCRH4) and port E
control register L4 (PECRL4). When PDCRH4 or PECRL4 selects another function, the IFCR
setting does not affect the pin function.
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
-
-
-
-
IRQ IRQ IRQ IRQ
MD3 MD2 MD1 MD0
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R
R
R
R
R
R
R
R
R
R
R
R R/W R/W R/W R/W
Bit
Bit Name
15 to 4 
3
IRQMD3
2
IRQMD2
1
IRQMD1
0
IRQMD0
Initial
Value
All 0
0
0
0
0
R/W
R
R/W
R/W
R/W
R/W
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Port D IRQOUT Pin Function Select
Select the IRQOUT pin function when bits 10, 9 and 8
(PD30MD2, PD30MD1 and PD30MD0) in PDCRH4
are set to 0, 1, and 1.
00: Interrupt request accept output
01: Refresh signal output
10: Interrupt request accept output or refresh signal
output (depends on the operating state)
11: Always high-level output
Port E IRQOUT Pin Function Select
Select the IRQOUT pin function when bits 14, 13 and
12 (PE15MD2, PE15MD1 and PE15MD0) in PECRL4
are set to 0, 1, and 1.
00: Interrupt request accept output
01: Refresh signal output
10: Interrupt request accept output or refresh signal
output (depends on the operating state)
11: Always high-level output
Rev. 1.00 Jun. 26, 2008 Page 1267 of 1692
REJ09B0393-0100