M16C28 Datasheet, PDF (265/423 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/28 Group (M16C/28, M16C/28B)
15. A/D Converter
•Example 3: When ADTRG input falling edge is generated more than two times after AN0 pin conversion
A/D pin input
voltage sampling
A/D pin conversion
ADTRG pin input
AN0
AN1
AN2
AN3
ADST flag
"1"
"0"
ADERR0 flag "1"
"0"
ADERR1 flag
"1"
"0"
ADTCSF flag
"1"
"0"
ADSTT0 flag
"1"
"0"
ADSTT1 flag
"1"
"0"
ADSTRT0 flag "1"
"0"
ADSTRT1 flag "1"
"0"
IR bit in the ADIC _"1"
register
"0"
Do not set to "1" by program
(invalid)
Set to "0" by program
Set to "0" when interrupt request acknowledgement or a program
(valid after single sweep conversion)
ADST flag: Bit 6 in the ADCON0 register
ADERR0, ADERR1, ADTCSF, ADSTT0, ADSTT1, ADSTRT0 and ADSTRT1 flag: bits 0, 1, 3, 4, 5, 6 and 7 in the ADSTAT0 register
Figure 15.26 Each Flag Operation in ADSTAT0 Register Associated with the Operation Example
in Delayed Trigger Mode 1 (2)
Rev. 2.00 Jan. 31, 2007 ^{page 245} of 385
REJ09B0047-0200