Datasheet

Section 19 Host Interface LPC Interface (LPC)
Rev. 3.00 Mar 21, 2006 page 567 of 788
REJ09B0300-0300
Table 19.4 Fast A20 Gate Output Signals
HA0 Data/Command
Internal CPU
Interrupt Flag
(IBF)
GA20
(P81) Remarks
1 H'D1 command 0 Q
0 1 data
*
1
01
1 H'FF command 0 Q (1)
Turn-on sequence
1 H'D1 command 0 Q
0 0 data
*
2
00
1 H'FF command 0 Q (0)
Turn-off sequence
1 H'D1 command 0 Q
0 1 data
*
1
01
1/0 Command other than H'FF and
H'D1
1Q (1)
Turn-on sequence
(abbreviated form)
1 H'D1 command 0 Q
0 0 data
*
2
00
1/0 Command other than H'FF and
H'D1
1Q (0)
Turn-off sequence
(abbreviated form)
1 H'D1 command 0 Q
1 Command other than H'D1 1 Q
Cancelled sequence
1 H'D1 command 0 Q
1 H'D1 command 0 Q
Retriggered sequence
1 H'D1 command 0 Q
0 Any data 0 1/0
1 H'D1 command 0 Q (1/0)
Consecutively executed
sequences
Notes: 1. Arbitrary data with bit 1 set to 1.
2. Arbitrary data with bit 1 cleared to 0.