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Section 21 A/D Converter
Rev. 4.00 Sep. 14, 2005 Page 804 of 982
REJ09B0023-0400
Bit Bit
Name
Initial
Value R/W Description
1
0
CH1
CH0
0
0
R/W
R/W
Channel Select
These bits and the MULTI bit select the analog input
channels. Clear the ADST bit to 0 before changing the
channel selection.
•
In the case of ADCSR0 (A/D0)
Single mode
Multi mode or scan mode
00: AN0
AN0
01: AN1
AN0, AN1
10: AN2
AN0 to AN2
11: AN3
AN0 to AN3
•
In the case of ADSCR1 (A/D1)
Single mode
Multi mode or scan mode
00: AN4
AN4
01: AN5
AN4, AN5
10: AN6
AN4 to AN6
11: AN7
AN4 to AN7
Note:
*
Clear this bit by writing 0.
21.2.3
A/D0, A/D1 Control Register (ADCR)
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.
Bit Bit
Name
Initial
Value R/W
Description
15
DSMP
0
R/W
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.
14 to 0
All
0
R
Reserved
These bits are always read as 0. The write value should
always be 0.
Summary of Contents for HD6417641
Page 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Page 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Page 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Page 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Page 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Page 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Page 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Page 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Page 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Page 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Page 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Page 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Page 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Page 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Page 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Page 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Page 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Page 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Page 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
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Page 1036: ...SH7641 Hardware Manual...