R01UH0823EJ0100 Rev.1.00 Page 1582 of 1823
Jul 31, 2019
RX23W Group 44. 12-Bit A/D Converter (S12ADE)
register as 2-bit extended data of the conversion accuracy bits: when the conversion count is set to 16 times, the value
added by the A/D conversion result is retained in the ADBUFn register as 4-bit extended data of the conversion accuracy
bits.
Even if A/D-converted value addition mode is selected, the extended A/D-converted value is stored in the ADBUFn
register according to the settings of the A/D data register format select bits.
44.2.37 A/D Data Storage Buffer Enable Register (ADBUFEN)
The ADBUFEN register is used to enable the data storage buffer.
BUFEN Bit (Data Storage Buffer Enable)
This bit enables the use of the data storage buffer when using the compare function.
When BUFEN = 1, A/D conversion result (addition result) other than self-diagnosis result is stored in ADBUFn.
Disable the data storage operation (BUFEN = 0) before reading ADBUFn and ADBUFPTR.
Do not use the data storage buffer for data duplexing, continuous scan, or group scan.
Address(es): S12AD.ADBUFEN 0008 90D0h
b7 b6 b5 b4 b3 b2 b1 b0
———————
BUFEN
Value after reset:
0
0000000
Bit Symbol Bit Name Description R/W
b0 BUFEN Data Storage Buffer Enable 0: The data storage buffer is not used.
1: The data storage buffer is used.
R/W
b7 to b1 — Reserved These bits are read as 0. The write value should be 0. R/W
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