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11
A/D CONVERTER
11-28
32185/32186 Group Hardware Manual
Rev.1.10 REJ09B0235-0110 May 15, 07
11.2 A/D Converter Related Registers
11.2.8 A/D Disconnection Detection Assist Method Select Register
A/D0 Disconnection Detection Assist Method Select Register (AD0DDASEL)
<Address: H’0080 008A>
b0
123456789
10
11
12
13
14
b15
ADDDA
SEL0
ADDDA
SEL1
ADDDA
SEL2
ADDDA
SEL3
ADDDA
SEL4
ADDDA
SEL6
ADDDA
SEL7
ADDDA
SEL8
ADDDA
SEL9
ADDDA
SEL10
ADDDA
SEL11
ADDDA
SEL12
ADDDA
SEL13
ADDDA
SEL14
ADDDA
SEL15
ADDDA
SEL5
????????????????
<Upon exiting reset: Undefined>
b
Bit Name
Function
R
W
0
ADDDASEL0
0: Discharge before conversion
R
W
Channel 0 disconnection detection assist method select bit
1: Precharge before conversion
1
ADDDASEL1
Channel 1 disconnection detection assist method select bit
2
ADDDASEL2
Channel 2 disconnection detection assist method select bit
3
ADDDASEL3
Channel 3 disconnection detection assist method select bit
4
ADDDASEL4
Channel 4 disconnection detection assist method select bit
5
ADDDASEL5
Channel 5 disconnection detection assist method select bit
6
ADDDASEL6
Channel 6 disconnection detection assist method select bit
7
ADDDASEL7
Channel 7 disconnection detection assist method select bit
8
ADDDASEL8
Channel 8 disconnection detection assist method select bit
9
ADDDASEL9
Channel 9 disconnection detection assist method select bit
10
ADDDASEL10
Channel 10 disconnection detection assist method select bit
11
ADDDASEL11
Channel 11 disconnection detection assist method select bit
12
ADDDASEL12
Channel 12 disconnection detection assist method select bit
13
ADDDASEL13
Channel 13 disconnection detection assist method select bit
14
ADDDASEL14
Channel 14 disconnection detection assist method select bit
15
ADDDASEL15
Channel 15 disconnection detection assist method select bit
Notes: This register must always be accessed in halfwords.
For these bits to be enabled, the ADDDAEN bit (A/D Disconnection Detection Assist Function Control Register bit 7)
must be set to "1" before setting these bits.
In order to prevent the A/D conversion result from being affected by the analog input voltage leakage from
any preceding channel, the A/D Disconnection Detection Assist Method Select Register is used to control
the conversion start state by selecting whether to discharge or precharge the chopper amp capacitor be-
fore starting regular conversion operation.