Datasheet

Section 20 LPC Interface (LPC)
Rev. 2.00 Sep. 28, 2009 Page 665 of 994
REJ09B0452-0200
Table 20.4 GA20 Setting/Clearing Timing
Pin Name Setting Condition Clearing Condition
GA20 When bit 1 of the data that follows an
H'D1 host command is 1
When bit 1 of the data that follows an
H'D1 host command is 0
Start
Wait for next byte
H'D1 command
received?
Host write
Host write
Yes
No
Data byte?
No
Write bit 1 of data byte
to the bit of GA20 in DR
Yes
Figure 20.4 GA20 Output