M16C26A Datasheet, PDF (217/352 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/26A Group (M16C/26A, M16C/26B, M16C/26T)
14. A/D Converter
•Example when selecting AN0 to AN3 to analog input pins (SCAN1 to SCAN0=012)
•Example 1: When Timer B1 underflow is generated during AN0 pin conversion
Timer B0 underflow
Timer B1 underflow
AN0
AN1
AN2
AN3
•Example 2: When Timer B1 underflow is generated after AN0 pin conversion
Timer B0 underflow
AN0
AN1
AN2
AN3
Timer B1 underflow
A/D pin input
voltage sampling
A/D pin conversion
•Example 3: When Timer B0 underflow is generated during A/D conversion of any pins except AN0 pin
Timer B0 underflow
Timer B0 underflow
(Abort othrt pins conversion)
Timer B1 underflow
Timer B1 under flow
AN0
AN1
AN2
AN3
•Example 4: When Timer B0 underflow is generated again before Timer B1 underflow is generated
after Timer B0 underflow generation
Timer B0 underflow
AN0
AN1
AN2
AN3
Timrt B0 underflow
(An interrupt does not affect A/D conversion)
Timer B1 underflow
Figure 14.1.7.1 Operation Example in Delayed Trigger Mode 0
Rev. 2.00 Feb.15, 2007 ^{page 200} of 329
REJ09B0202-0200