Control Registers - Panasonic MN103S User Manual

Chapter 14
A/D Converter
14.2.2

Control Registers

These registers are 16-bit readable/writable registers which control an A/D converter.
A/D0 Conversion Control Register 0 (AN0CTR0: 0x0000A400) [8,16-bit Access Register]
bp 15
Flag
-
At reset 0
Access R
bp Flag
15-13 -
12 EXTRG0
11 -
AN0CH2
10-8 AN0CH1
AN0CH0
7 AN0EN
6 AN0OFF
5 AN0TRG
AN0CK2
4-2 AN0CK1
AN0CK0
AN0MD1
1-0
AN0MD0
Do not change the A/D0 conversion control register during A/D conversion.
..
..
XIV - 6 Control Registers
14 13 12 11
EX
- - -
TRG0
0 0 0 0
R R R/W R
Description
-
Edge detection at external trigger con-
version
-
Channel number at any single channel
conversion
Start channel number at multiple chan-
nel conversion
(When reading during A/D conversion,
however, the channel number in conver-
sion is read.)
Conversion start-execution flag
Power-down mode
External trigger A conversion start
enable
Conversion clock
Operation mode
10 9 8 7
AN0 AN0 AN0 AN0
CH2 CH1 CH0 EN
0 0 0 0
R/W R/W R/W R/W
Setting condition
-
Reserved
-
000: ADIN00
001: ADIN01
010: ADIN02
011: ADIN03
100: ADIN04
101: ADIN05
110: Setting prohibited
111: Setting prohibited
0: Disabled
1: Conversion start or in progress
0: Power-down mode
1: Operation mode
0: Disabled
1: Enabled
000: IOCLK
001: 2 dividing of IOCLK
010: 3 dividing of IOCLK
011: 4 dividing of IOCLK
100: 8 dividing of IOCLK
101:16 dividing of IOCLK
110: setting prohibited
111: setting prohibited
00: Any single channel, one-time conversion
01: Multiple channels, one-time conversion for each
10: Any single channel, continuous conversion
11: Multiple channels, continuous conversion
6 5 4 3
AN0 AN0 AN0 AN0
OFF TRG CK2 CK1
0 0 0 0
R/W R/W R/W R/W
2 1 0
AN0 AN0 AN0
CK0 MD1 MD0
0 0 0
R/W R/W R/W