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HD6432142 Datasheet(PDF) 664 Page - Renesas Technology Corp

Part # HD6432142
Description  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
PDF  1177 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432142 Datasheet(HTML) 664 Page - Renesas Technology Corp

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Section 20 A/D Converter
Rev. 4.00 Sep 27, 2006 page 620 of 1130
REJ09B0327-0400
20.2.3
A/D Control Register (ADCR)
7
TRGS1
0
R/W
6
TRGS0
0
R/W
5
—
1
—
4
—
1
—
3
—
1
—
0
—
1
—
2
—
1
—
1
—
1
—
Bit
Initial value
Read/Write
ADCR is an 8-bit readable/writable register that enables or disables external triggering of A/D
conversion operations.
ADCR is initialized to H'3F by a reset, and in standby mode, watch mode, subactive mode,
subsleep mode, and module stop mode.
Bits 7 and 6—Timer Trigger Select 1 and 0 (TRGS1, TRGS0): These bits select enabling or
disabling of the start of A/D conversion by a trigger signal. Only set bits TRGS1 and TRGS0
while conversion is stopped.
Bit 7
Bit 6
TRGS1
TRGS0
Description
0
0
Start of A/D conversion by external trigger is disabled
(Initial value)
1
Start of A/D conversion by external trigger is disabled
1
0
Start of A/D conversion by external trigger (8-bit timer) is enabled
1
Start of A/D conversion by external trigger pin is enabled
Bits 5 to 0—Reserved: Should always be written with 1.
Note:
Some of these bits are readable/writable in products other than the HD64F2148,
HD64F2147N, HD64F2144, HD64F2142R and HD6432142, however, when writing, be
sure to write 1 here for software compatibility.



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