tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 462

• Manufacturer Part Number: tmp19a44fda
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

(Note 1) Before starting AD conversion, write "1" to the <VREFON> bit, wait for 3 μs during which
(Note 2) To go into standby mode upon completion of AD conversion, set <VREFON> to "0."
Analog/Digital Converter
ADMOD2
(0xFF00_ 4D0C)
ADMOD1
(0xFF00_ 4D08)
time the internal reference voltage should stabilize, and then write "1" to the
ADMOD0<ADS> bit.
bit Symbol
Read/Write
After reset
bit Symbol
Read/Write
After reset
Function
Function
<ADCHA3.2, 1, 0>
<HPADCHA4,3.2, 1, 0>
VREFONA
VREF
0: OFF
1: ON
EOCFHPA
Top-priority
AD
conversion
completion
flag
0: Before or
1: Upon
during
conversion
completion
application
control
0100~1111
0100~1111
Fig. 17.3 Registers related to the A/D Converter
7
7
R
0
0
0000
0001
0010
0011
0000
0001
0010
0011
IDLE
0: Stop
1: Activate
Top-priority AD
conversion
BUSY flag
0: During
1: During
ADBFHPA
conversion
halts
conversion
I2ADA
<SCAN>
6
TMP19A44(rev1.3) 17-3
0
A/D Mode Control Register 1
A/D Mode Control Register 2
6
R
0
Select analog input channel
Specify
operation
mode for
channel
scanning
0: 4ch scan
1: Setting
prohibited
ADSCNA
Activate
top-priority
conversion
0: Don't care
1: Start
"0" is always
read.
HPADCEA
conversion.
top-priority conversion
Analog input channel
5
0
Setting prohibited
Fixed channel
5
0
when executing
ANn0
ANn1
ANn2
ANn3
AIN0
AIN1
AIN2
AIN3
0
Write "0."
Write "0."
4
−
0
4
−
0
R/W
AN0
AN0 to AN1
AN0 to AN2
AN0 to AN3
ADCHA3
Select analog input channel when activating top-priority
conversion
HPADC
HA3
3
0
3
0
Channel scan
(ADSCN=0)
Setting prohibited
R/W
1
HPADCH
ADCHA2
Select analog input channel
A2
2
2
0
0
TMP19A44
HPADCH
ADCHA1
ANn0
ANn0 to ANn1
ANn0 to ANn2
ANn0 to ANn3
A1
1
1
0
0
Channel scan
(ADSCN=1)
2010-04-01
HPADCH
ADCHA0
1
A0
0
0
0
0