18.3.12 SERIRQ Control Register 2 (SIRQCR2)
SIRQCR2 contains bits that enable or disable SERIRQ interrupt requests and select the host
interrupt request outputs.
Bit
Bit Name Initial Value Slave Host Description
7
IEDIR3
0
6
IEDIR4
0
R/W
R/W
Interrupt Enable Direct Mode 3
Selects whether an SERIRQ interrupt generation of
LPC channel 3 is affected only by a host interrupt
enable bit or by an OBF flag in addition to the enable
bit.
0: A host interrupt is generated when both the
enable bit and the corresponding OBF flag are
set
1: A host interrupt is generated when the enable bit
is set
R/W
Interrupt Enable Direct Mode 4
Selects whether an SERIRQ interrupt generation of
LPC channel 4 is affected only by a host interrupt
enable bit or by an OBF flag in addition to the enable
bit.
0: A host interrupt is generated when both the
enable bit and the corresponding OBF flag are
set
1: A host interrupt is generated when the enable bit
is set
Section 18 LPC Interface (LPC)
Rev. 3.00 Jul. 14, 2005 Page 649 of 986
REJ09B0098-0300