Fujitsu FR81S Manuel D’Utilisation
CHAPTER 44: 12-BIT A/D CONVERTER
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: 12-BIT A/D CONVERTER
FUJITSU SEMICONDUCTOR CONFIDENTIAL
25
4.2.1. A/D Software Activation Register: ADTSS0, ADTSS1
The bit configuration of the A/D software activation register is shown.
The A/D software activation register (ADTSS) issues a 12-bit converter A/D activation request. The
activation channel is specified by the A/D software activation channel select register (ADTSE).
ADTSS0: Address 1304
H
(Access: Byte, Half-word, Word)
ADTSS1: Address 1470
H
(Access: Byte, Half-word, Word)
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
Reserved
START
Initial value
0
0
0
0
0
0
0
0
Attribute R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
R0,W
[bit7 to bit1] Reserved
Always write 0 to these bits.
[bit0] START: A/D conversion activation bit (software)
START
Function
0
Does not activate the A/D conversion function.
1
Activate the A/D conversion function.
This bit activates the A/D conversion operation under software control.
The A/D conversion activates when this bit is set to “1”. The activation channel is specified by the A/D
software activation channel select register(ADTSE).
The A/D conversion cannot be reactivated by changing this bit.
MB91520 Series
MN705-00010-1v0-E
1828