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Section 19 LPC Interface (LPC)
Initial
Bit
Bit Name
Value
6
CLKREQ
0
5
IRQBSY
0
Rev. 1.00 Mar. 12, 2008 Page 676 of 1178
REJ09B0403-0100
R/W
Slave Host Description
R
LCLK Request
Indicates that the LPC interface's SERIRQ output is
requesting a restart of LCLK.
0: No LCLK restart request
[Clearing conditions]
•
LPC hardware reset or LPC software reset
•
LPC hardware shutdown or LPC software shutdown
•
SERIRQ is set to continuous mode
•
There are no further interrupts for transfer to the
host in quiet mode
1: LCLK restart request issued
[Setting condition]
In quiet mode, SERIRQ interrupt output becomes
necessary while LCLK is stopped
R
SERIRQ Busy
Indicates that the LPC interface's SERIRQ is engaged
in transfer processing.
0: SERIRQ transfer frame wait state
[Clearing conditions]
•
LPC hardware reset or LPC software reset
•
LPC hardware shutdown or LPC software shutdown
•
End of SERIRQ transfer frame
1: SERIRQ transfer processing in progress
[Setting condition]
Start of SERIRQ transfer frame
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