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R01UH0336EJ0102 Rev.1.02
Page 1309 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 23 A/D Converter
(2)
Restrictions when Using Sample and Hold Function
Restrictions when using sample and hold function are as follows.
1. The channels to which the channel sample and hold function is applied
must not be assigned to multiple CGs at the same time.
Example 1: When the channel sample and hold function is applied to CG0,
CG1, and CG2 (CG0 in one-shot conversion mode)
The following combination is possible.
– CG0 (CH1 selected), CG1 (CH2 selected), and CG2 (CH3 selected)
The following combinations are prohibited.
– CG0 (CH1 selected), CG1 (CH1 selected), and CG2 (CH2 and CH3
selected)
Example 2: When the channel sample and hold function is applied to CG1 and
CG2 (CG0 in continuous conversion mode)
The following combinations are possible.
– CG0 (CH1 selected), CG1 (CH1 and CH2 selected), and CG2 (CH3
selected)
– CG0 (CH1, CH2, and CH3 selected), CG1 (CH1 selected), and CG2
(CH2 and CH3 selected)
The following combination is prohibited.
– CG0 (CH1, CH2, and CH3 selected), CG1 (CH1 and CH2 selected), and
CG2 (CH2 and CH3 selected)
2. When changing the scan list of CGi to which the channel sample and hold
function is applied during A/D conversion, set the scan list so that the
channels for applying the function are not changed.
Example: When the channel sample and hold function is applied to CH1, CH2,
and CH3.
The following changes are possible.
– Change from CG0 (CH1, CH2, and CH3) to CG0 (CH1, CH2, CH3,
CH10, and CH11)
– Change from CG0 (CH1, CH2, CH3, CH10, and CH11) to CG0 (CH1,
CH2, and CH3)
– Change from CG0 (CH7, CH8, and CH9) to CG0 (CH10, CH11, and
CH12)
The following changes are prohibited.
– Change from CG0 (CH1, CH2, and CH3) to CG0 (CH1 and CH2)
– Change from CG0 (CH1) to CG0 (CH1, CH2, and CH3)
– Change from CG0 (CH7, CH8, and CH9) to CG0 (CH1, CH7, CH8, and
CH9)
– Change from CG0 (CH1, CH2, and CH9) to CG0 (CH9, CH10, and CH11)