SH7014 Datasheet, PDF (437/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

14. Mid-Speed A/D Converter ⎯ SH7016, SH7017 ⎯
Bit 5⎯A/D Start (ADST): Selects start/end of A/D conversion. A 1 is maintained during A/D
conversion start. It is also possible to set a 1 by the MTU trigger input.
Bit 5
ADST
0
1
Description
A/D conversion halted
(Initial value)
1. Single mode: Starts A/D conversion. Automatically clears to 0 when conversion of
the designated channel is complete
2. Scan mode: Starts A/D conversion. Continuous conversion until cleared to 0 by the
software
Bit 4⎯Scan Mode (SCAN): Selects the A/D conversion mode from single mode and scan mode.
For operations during single/scan mode, see section 14.4, Operation. When switching modes,
proceed while ADST = 0.
Bit 4
SCAN
0
1
Description
Single mode
Scan mode
(Initial value)
Bit 3⎯Clock Select (CKS): Sets the A/D conversion time. Proceed conversion time switch while
ADST = 0. Always set CKS = 0 when operating frequency exceeds 20MHz.
Bit 3
CKS
0
1
Description
Conversion time = 266 states (max)
Conversion time = 134 states (max)
(Initial value)
Bits 2 to 0⎯Channel select 2 to 0 (CH2 to CH0): Selects the analog input channel along with
the SCAN bit. Switch channels while ADST = 0.
Rev.5.00 Sep. 27, 2007 Page 403 of 716
REJ09B0398-0500