US38024-BAG1 Renesas Electronics America, US38024-BAG1 Datasheet - Page 422

• Manufacturer Part Number: US38024-BAG1
• Description: DEV EVALUATION KIT H8/38024
• Manufacturer: Renesas Electronics America
• Series: H8®r
• Type: MCUr

Specifications of US38024-BAG1

• Contents: 2G (Second-generation) Evaluation Board, HEW debugger support, Cable and CD-ROM
• For Use With/related Products: H8/38024
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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
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. 8.00 Mar. 09, 2010 Page 400 of 658
REJ09B0042-0800
Bit
Initial value
Read/Write
A/D Start Register (ADSR)
Bit 2
CH2
0
1
1
1
1
0
0
0
0
1
ADSF
R/W
7
0
Bit 1
CH1
*
0
0
1
1
0
0
1
1
*
—
—
6
1
Bit 0
CH0
*
0
1
0
1
0
1
0
1
*
—
—
5
1
Analog Input Channel
No channel selected
AN
AN
AN
AN
AN
AN
AN
AN
Setting prohibited
0
1
2
3
4
5
6
7
—
—
4
1
—
—
3
1
—
—
2
1
—
—
1
1
(initial value)
*: Don’t care
—
—
0
1