hd64338342hw Renesas Electronics Corporation., hd64338342hw Datasheet - Page 458
hd64338342hw
Manufacturer Part Number
hd64338342hw
Description
Renesas 8-bit Single-chip Microcomputer H8 Family/h8/300l Super Low Power Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HD64338342HW.pdf
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Section 12 A/D Converter
Bits 3 to 0: Channel select (CH3 to CH0)
Bits 3 to 0 select the analog input channel.
The channel selection should be made while bit ADSF is cleared to 0.
Bit 3
CH3
0
0
0
0
0
1
1
1
1
1
1
1
1
12.2.3
The A/D start register (ADSR) is an 8-bit read/write register for starting and stopping A/D
conversion.
A/D conversion is started by writing 1 to the A/D start flag (ADSF) or by input of the designated
edge of the external trigger signal, which also sets ADSF to 1. When conversion is complete, the
converted data is set in ADRRH and ADRRL, and at the same time ADSF is cleared to 0.
Rev. 6.00 Aug 04, 2006 page 422 of 680
REJ09B0145-0600
Bit
Initial value
Read/Write
A/D Start Register (ADSR)
Bit 2
CH2
0
1
1
1
1
0
0
0
0
1
1
1
1
ADSF
R/W
7
0
Bit 1
CH1
*
0
0
1
1
0
0
1
1
0
0
1
1
6
1
Bit 0
CH0
*
0
1
0
1
0
1
0
1
0
1
0
1
5
1
Analog Input Channel
No channel selected
AN
AN
AN
AN
AN
AN
AN
AN
AN
AN
AN
AN
0
1
2
3
4
5
6
7
8
9
10
11
4
1
3
1
2
1
1
1
(initial value)
*: Don’t care
0
1
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