HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 551

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

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 4—Scan Mode (SCAN): Selects single mode or scan mode as the A/D conversion operating
mode. See section 14.4, Operation, for single mode and scan mode operation. Only set the SCAN
bit while conversion is stopped (ADST = 0).
Bit 3—Clock Select (CKS): Sets the A/D conversion time. Only change the conversion time
while conversion is stopped (ADST = 0).
Set the conversion time to a value equal to or greater than the conversion time indicated in section
19.5, A/D Conversion Characteristics.
Bit 2—Reserved: This bit can be read or written, but should only be written with 0.
Bit 5
ADST
0
1
Bit 4
SCAN
0
1
Bit 3
CKS
0
1
Description
Description
Single mode
Scan mode
Description
Conversion time = 266 states (max.)
Conversion time = 134 states (max.)
A/D conversion stopped
Single mode: A/D conversion is started. Cleared to 0 automatically when
Scan mode: A/D conversion is started. Conversion continues sequentially on the
conversion on the specified channel ends
selected channels until ADST is cleared to 0 by software, a reset, or
a transition to standby mode or module stop mode.
Rev.3.00 Mar. 26, 2007 Page 509 of 772
Section 14 A/D Converter
REJ09B0355-0300
(Initial value)
(Initial value)
(Initial value)