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Rev. 1.00, 05/04, page 375 of 544
R/W
Bit Bit Name
Initial
Value
Slave Host Description
5 IRQBSY 0 R — SERIRQ Busy
Indicates that the host interface's SERIRQ signal 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
4 LRSTB 0 — — LPC Software Reset Bit
Resets the host interface. For the scope of initialization
by an LPC reset, see section 15.4.4, Host Interface
Shutdown Function (LPCPD).
0: Normal state
[Clearing conditions]
• Writing 0
• LPC hardware reset
1: LPC software reset state
[Setting condition]
• Writing 1 after reading LRSTB = 0