Datasheet

Rev. 3.00, 03/04, page 579 of 830
Table 16.9 Scope of Initialization in Each LPC Interface Mode
Items Initialized
System
Reset LPC Reset
LPC
Shutdown
LPC transfer cycle sequencer (internal state),
LPCBSY and ABRT flags
Initialized Initialized Initialized
SERIRQ transfer cycle sequencer (internal state),
CLKREQ and IRQBSY flags
Initialized Initialized Initialized
LPC interface flags
(IBF1, IBF2, IBF3A, IBF3B, MWMF, C/D1, C/D2,
C/D3, OBF1, OBF2, OBF3A, OBF3B, SWMF, DBU,
SMICFLG, SMICIR0, BTSR0, BTSR1, BTCR,
BTIMSR, BTFVSR0, BTFVSR1), GA20 (internal
state)
Initialized Initialized Retained
Host interrupt enable bits
(IRQ1E1, IRQ12E1, SMIE2, IRQ6E2,
IRQ9E2 to IRQ11E2, SMIE3B, SMIE3A, IRQ6E3,
IRQ9E3 to IRQ11E3, SELREQ, IEDIR, IEDIR3,
SMICIR1), Q/C flag
Initialized Initialized Retained
LRST flag Initialized
(0)
Can be
set/cleared
Can be
set/cleared
SDWN flag Initialized
(0)
Initialized
(0)
Can be
set/cleared
LRSTB bit Initialized
(0)
HR: 0
SR: 1
0 (can be set)
SDWNB bit Initialized
(0)
Initialized
(0)
HS: 0
SS: 1
SDWNE bit Initialized
(0)
Initialized
(0)
HS: 1
SS: 0 or 1
LPC interface operation control bits
(LPC3E to LPC1E, FGA20E, LADR12, LADR3,
IBFIE1 to IBFIE3, PMEE, PMEB, LSMIE, LSMIB,
LSCIE, LSCIB, TWRE, SELSTR3, SELIRQ1,
SELSMI, SELIRQ6, SELIRQ9, SELIRQ10,
SELIRQ11, SELIRQ12, HICR4, HISEL, BTCSR0,
BTCSR1)
Initialized Retained Retained
LRESET signal Input (port Input Input
LPCPD signal function) Input Input
LAD3 to LAD0, LFRAME, LCLK, SERIRQ,
CLKRUN signals
Input Hi-Z
PME, LSMI, LSCI, GA20 signals (when function
is selected)
Output Hi-Z
PME, LSMI, LSCI, GA20 signals (when function
is not selected)
Port function Port function