IN16C1054
Pass temp2 back to host
Read LCR, save in temp1
Set LCR to not BFh
Enable Xoff Re-transmit
Read MCR, save in temp2
Set MCR to (‘0100_0000’ OR temp2)
Set MCR to (‘0100_0100’ OR temp2)
Set MCR to (‘1011_1111’ AND temp2)
Set MCR to temp2
Set LCR to temp1
Disable Xoff Re-transmit
Read LCR, save in temp1
Set LCR to not BFh
Read MCR, save in temp2
Set MCR to (‘0100_0000’ OR temp2)
Set MCR to (‘1011_1011’ AND temp2)
Set MCR to temp2
Set LCR to temp1
Set Prescaler Value to Divide-by-1 or 4
Read LCR, save in temp1
Set LCR to BFh
Read EFR, save in temp2
Set EFR to (‘0001_0000’ OR temp2)
Set LCR to 00h
Read MCR, save in temp3
if Divide-by-1 = OK then
Set MCR to (‘0111_1111’ AND temp3)
else
Set MCR to (‘1000_0000’ OR temp3)
Set LCR to BFh
Set EFR to temp2
Set LCR to temp1
9. Electrical Characteristics
Absolute Maximum Ratings
Symbol
Parameter
Conditions
Min
Max
3.6
Unit
V
Supply voltage
V
V
V
—
CC
Input voltage
— 0.5
GND + 0.1
— 40
— 60
5.5
V
I
Output voltage
V
– 0.1
CC
V
O
Operating ambient temperature
Storage temperature
T
T
In free-air
+85
℃
℃
amb
stg
+150
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
