M16C29 Datasheet, PDF (249/499 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/Tiny SERIES

M16C/29 Group
15. A/D Converter
A/D Trigger Control Register ^{(1, 2)}
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
ADTRGCON
Address
03D216
After Reset
0016
Bit Symbol
SSE
Bit Name
A/D Operation Mode
Select Bit 2
Function
RW
0 : Other than simultaneous sample sweep
RW
mode or delayed trigger mode 0,1
1 : Simultaneous sample sweep mode or
delayed trigger mode 0,1
DTE
A/D Operation Mode
Select Bit 3
0 : Other than delayed trigger mode 0,1
1 : Delayed trigger mode 0,1
RW
HPTRG0 ^{AN0 Trigger Select Bit}
Function varies with each operation mode
RW
HPTRG1 ^{AN1 Trigger Select Bit}
Function varies with each operation mode
RW
(b7-b4)
Nothing is assigned. If necessary, set to 0.
When read, its content is 0
NOTES:
1. If the ADTRGCON register is rewritten during A/D conversion, the conversion result will be undefined.
2. Set 0016 in this register in one-shot mode, repeat mode, single sweep mode, repeat sweep mode 0 and repeat
sweep mode 1.
Figure 15.3 ADTRGCON Register
Table 15.2 A/D Conversion Frequency Select
CKS2
CKS1
CKS0
ØAD
0
0
0
fAD divided by 4
0
0
1
fAD divided by 2
0
1
0
fAD
0
1
1
1
0
0
fAD divided by 12
1
0
1
fAD divided by 6
1
1
0
fAD divided by 3
1
1
1
NOTE:
1. ØAD frequency must be under 10 MHz. Combination of the CKS0 bit in the
ADCON0 register, the CKS1 bit in the ADCON1 register, and the CKS2 bit in the
ADCON2 register selects ØAD.
Rev. 1.12 Mar.30, 2007 ^{page 225} of 458
REJ09B0101-0112