SH7211 Datasheet, PDF (883/1228 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family

Section 19 Pin Function Controller (PFC)
19.1.8 IRQOUT Function Control Register (IFCR)
IFCR is a 16-bit readable/writable register that is used to control the IRQOUT/REFOUT pin
output when it is selected as the multiplexed pin function by port B control register H4
(PBCRH4). When PBCRH4 selects another function, the IFCR setting does not affect the pin
function.
IFCR is initialized to H'0000 by a power-on reset; but is not initialized by a manual reset or in
sleep mode or software standby mode.
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
IRQMD[1:0]
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
R R/W R/W
Initial
Bit
Bit Name Value R/W Description
15 to 2 ⎯
All 0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
1, 0
IRQMD[1:0] 00
R/W IRQOUT Mode
Select the function of the IRQOUT/REFOUT pin when
bits 10 to 8 (PB30MD[2:0]) in PBCRH4 are set to
B'001.
00: Interrupt request accept signal output
01: Refresh signal output
10: Interrupt request accept signal output or refresh
signal output (depends on the operating state)
11: Always high-level output
Rev. 2.00 May. 08, 2008 Page 859 of 1200
REJ09B0344-0200