Datasheet

V850ES/JG3 CHAPTER 13 A/D CONVERTER
R01UH0015EJ0300 Rev.3.00 Page 412 of 870
Sep 30, 2010
(2) A/D converter mode register 1 (ADA0M1)
The ADA0M1 register is an 8-bit register that specifies the conversion time.
This register can be read or written in 8-bit or 1-bit units.
Reset sets this register to 00H.
ADA0HS1ADA0M1 0 00 ADA0FR2ADA0FR3 ADA0FR1 ADA0FR0
After reset: 00H R/W Address: FFFFF201H
ADA0HS1
0
1
Normal conversion mode
High-speed conversion mode
Specification of normal conversion mode/high-speed mode (A/D conversion time)
Cautions 1. Changing the ADA0M1 register is prohibited while A/D conversion is enabled
(ADA0M0.ADA0CE bit = 1).
2. To select the external trigger mode/timer trigger mode (ADA0M0.ADA0TMD bit = 1), set
the high-speed conversion mode (ADA0HS1 bit = 1). Do not input a trigger during
stabilization time that is inserted once after the A/D conversion operation is enabled
(ADA0CE bit = 1).
3. Be sure to clear bits 6 to 4 to “0”.
Remark For A/D conversion time setting examples, see Tables 13-2 and 13-3.