HD64F2638F20J Datasheet, PDF (737/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 17 A/D Converter
Bit 5—A/D Start (ADST): Selects starting or stopping on A/D conversion. Holds a value of 1
during A/D conversion.
The ADST bit can be set to 1 by software, a timer conversion start trigger, or the A/D external
trigger input pin (ADTRG).
Bit 5
ADST
0
1
Description
A/D conversion stopped
(Initial value)
Single mode: A/D conversion is started. Cleared to 0 automatically when conversion
on the specified channel ends
Scan mode: A/D conversion is started. Conversion continues sequentially on the
selected channels until ADST is cleared to 0 by software, a reset, or a
transition to standby mode or module stop mode.
Bit 4—Scan Mode (SCAN): Selects single mode or scan mode as the A/D conversion operating
mode. See section 17.4, Operation, for single mode and scan mode operation. Only set the SCAN
bit while conversion is stopped (ADST = 0).
Bit 4
SCAN
0
1
Description
Single mode
Scan mode
(Initial value)
Bit 3—Channel Select 3 (CH3): Switches the analog input pins assigned to group 0 or group 1.
Setting CH3 to 1 enables AN8 to AN11 to be used instead of AN0 to AN7.
Bit 3
CH3
1
0
Description
AN8 to AN11 are group 0 analog input pins
AN0 to AN3 are group 0 analog input pins, AN4 to AN7 are group 1 analog input pins
(Initial value)
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 687 of 1458