SH7014 Datasheet, PDF (407/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

13. High Speed A/D Converter ⎯ SH7014 ⎯
Bit 4⎯Clock Select (CKS): Sets the A/D conversion time. Set so that the conversion time is 2 μs
or greater in proportion to the operating frequency.
Make conversion time changes only while conversion is halted.
Bit 4
CKS
0
1
Description
Conversion time = 40 states
(high speed A/D converter standard clock = φ/2)
Conversion time = 80 states (when φ/4 is selected)
(initial value)
Bit 3⎯Group Mode (GRP): Designates either select mode or group mode for the A/D
conversion channel selection.
Set the GRP bit only while conversion is halted.
Bit 3
GRP
0
1
Description
Select mode
Group mode
(initial value)
Bits 2 to 0⎯Channel Select 2 to 0 (CH2 to CH0): These bits, along with the GRP bit, select the
analog input channel.
Set the input channel only while conversion is halted.
Bit 2
CH2
0
1
Bit 1
CH1
0
1
0
1
Bit 0
CH0
0
1
0
1
0
1
0
1
Description
Select Mode (GRP = 0) Group Mode (GRP = 1)
AN0
(initial value) AN0
AN1
AN0 to AN1
AN2
AN0 to AN2
AN3
AN0 to AN3
AN4
AN0 to AN4
AN5
AN0 to AN5
AN6
AN0 to AN6
AN7
AN0 to AN7
Rev.5.00 Sep. 27, 2007 Page 373 of 716
REJ09B0398-0500