Datasheet

Section 19 A/D Converter
R01UH0166EJ0600 Rev. 6.00 Page 909 of 1434
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
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 Description
0
• A/D conversion stopped (Initial value)
1
• 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 19.4, Operation, for single mode and scan mode operation. Only set the SCAN
bit while conversion is stopped (ADST = 0).
Bit 4
SCAN Description
0 Single mode (Initial value)
1 Scan mode
Bit 3—Channel Select 3 (CH3): Switches the analog input pins assigned to group 0 or group 1.
Setting CH3 to CH1 enables AN8 to AN15 to be used instead of AN0 to AN7.
Bit 3
CH3 Description
0 AN8 to AN11 are group 0 analog input pins, AN12 to AN15 are group 1 analog input
pins
1 AN0 to AN3 are group 0 analog input pins, AN4 to AN7 are group 1 analog input pins
(Initial value)