HD6473847RHV Datasheet, PDF (348/546 Pages) Renesas Technology Corp – Renesas 8-Bit Single-Chip Microcomputer H8 Family / H8/300L Super Low Power Series

Section 12 A/D Converter
12.3.2 A/D Mode Register (AMR)
AMR sets the A/D conversion time and analog input pins.
Initial
Bit Bit Name Value R/W
7
CKS
0
R/W
6
⎯
5, 4 ⎯
3
CH3
2
CH2
1
CH1
0
CH0
0
R/W
All 1 ⎯
0
R/W
0
R/W
0
R/W
0
R/W
Legend: X: Don't care.
Description
Clock Select
Sets the A/D conversion time.
0: Conversion time = 62 states
1: Conversion time = 31 states
Reserved
Only 0 can be written to this bit.
Reserved
These bits are always read as 1 and cannot be modified.
Channel Select 3 to 0
Selects the analog input channel.
00XX: No channel selected
0100: AN0
0101: AN1
0110: AN2
0111: AN3
1XXX: Using prohibited
The channel selection should be made while the ADSF bit
is cleared to 0.
Rev. 7.00 Mar. 08, 2010 Page 316 of 510
REJ09B0024-0700