HD6473837H Datasheet, PDF (508/562 Pages) Renesas Technology Corp – Hardware Manual

AMR—A/D mode register
Bit
Initial value
Read/Write
7
6
5
CKS TRGE —
0
0
1
R/W
R/W
—
H'C4
A/D converter
4
3
2
1
0
—
CH3 CH2 CH1 CH0
1
0
0
0
0
—
R/W
R/W
R/W
R/W
Channel select
Bit 3 Bit 2 Bit 1
CH3 CH2 CH1
0
0
*
1
0
1
1
0
0
1
1
0
1
Bit 0
CH0
*
0
1
0
1
0
1
0
1
0
1
0
1
Analog input channel
No channel selected
AN ₀
AN ₁
AN ₂
AN ₃
AN ₄
AN ₅
AN ₆
AN ₇
AN ₈
AN ₉
AN ₁₀
AN ₁₁
External trigger select
0 Disables start of A/D conversion by external trigger
1 Enables start of A/D conversion by rising or falling edge
of external trigger at pin ADTRG
Clock select
Bit 7
CKS Conversion Period
0 62/φ
1 31/φ
Conversion Time
φ = 2 MHz φ = 5 MHz
31 µs
15.5 µs
12.4 µs
—^*1
Notes: * Don’t care
1. Operation is not guaranteed if the conversion time is less than 12.4 µs.
Set bit 7 for a value of at least 12.4 µs.
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