HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 854
HD6417641
Manufacturer Part Number
HD6417641
Description
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
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Section 21 A/D Converter
Note:
21.2.3
ADCR is a 16-bit readable/writable register that selects the simultaneous sampling of two
channels. See section 21.3.4 Simultaneous Sampling Operation, for details on simultaneous
sampling.
ADCR is initialized to H'0000 by a power-on reset and in standby mode.
Rev. 4.00 Sep. 14, 2005 Page 804 of 982
REJ09B0023-0400
Bit
1
0
Bit
15
14 to 0
*
A/D0, A/D1 Control Register (ADCR)
Bit Name
CH1
CH0
Bit Name
DSMP
Clear this bit by writing 0.
Initial
Value
0
0
Initial
Value
0
All 0
R/W
R/W
R/W
R/W
R/W
R
Description
Channel Select
These bits and the MULTI bit select the analog input
channels. Clear the ADST bit to 0 before changing the
channel selection.
•
Single mode
00: AN0
01: AN1
10: AN2
11: AN3
•
Single mode
00: AN4
01: AN5
10: AN6
11: AN7
Description
Selects A/D0 or A/D1 simultaneous sampling.
Starts simultaneous sampling of two channels when the
DSMP bit set to 1. The DSMP bit remains set to 1
during A/D conversion.
DSMP is automatically cleared to 0 when conversion
ends on all selected channels by each one mode.
Note: Set the ADCSR registers before DSMP bit set.
Reserved
These bits are always read as 0. The write value should
always be 0.
In the case of ADCSR0 (A/D0)
In the case of ADSCR1 (A/D1)
Multi mode or scan mode
AN0
AN0, AN1
AN0 to AN2
AN0 to AN3
Multi mode or scan mode
AN4
AN4, AN5
AN4 to AN6
AN4 to AN7
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