upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 391

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

11.5 Extended Functions
11.5.1 Automatic discharge operation
The automatic discharge operation internally connects the sample and hold circuit to GND in order to
catch open analog inputs and other failure modes. This function is disabled by default and is controlled
by the ADVMS0 register (refer to 11.3 ”Control Registers” on page 371).
11.5.2 Diagnostic mode
The diagnostic mode configures the A/D converter to perform a conversion operation on the AV
and AV
application program to calibrate conversion results and thereby reduce the effect of certain error factors
such as full scale error and zero offset error. This mode is disabled by default, and is controlled by the
ADVMS0 register (refer to 11.3 ”Control Registers” on page 371).
(1)
(2)
Operation in select mode and continuous select mode
In these modes, AV
ADSCM0L. The A/D conversion result is stored in the appropriate conversion result register and
interrupt (INTAD) is output. Operation is performed in the same manner described in 11.4.3
Operation in scan mode and continuous scan mode
In this mode, AV
Scan mode conversion end channel specified in register ADSCM0L. The A/D conversion result is
stored in the appropriate conversion result register and interrupt (INTAD) is output. Operation is
performed in the same manner described in 11.4.3 ”Operation mode” on page 383.
”Operation mode” on page 383.
SS
terminals. Using this mode allows the user to implement a software algorithm in the
REF0
REF0
and AV
User’s Manual U16702EE3V2UD00
or AV
SS
Chapter 11 A/D Converter
SS
terminals are scanned immediately after A/D conversion of the
terminals can be selected using the ANISn bits of register
REF0
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