D12320VF25V Datasheet, PDF (1066/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Appendix B Internal I/O Registers
ADCR—A/D Control Register
H'FF99
A/D Converter
Bit
:
7
6
5
4
3
2
1
0
TRGS1 TRGS0 ⎯
⎯
CKS1
⎯
⎯
⎯
Initial value :
0
0
1
1
1
1
1
1
Read/Write : R/W
R/W
⎯
⎯
R/W R/W
⎯
⎯
Reserved
Only 1 should be written to this bit.
Clock Select
CKS1 is used in combination with CKS, bit 3 in ADCSR.
ADCSR
Bit 3 Bit 3
Description
CKS1 CKS
0
0 Conversion time = 530 states (max.)
1 Conversion time = 68 states (max.)
1
0 Conversion time = 266 states (max.)
1 Conversion time = 134 states (max.)
Timer Trigger Select
TRGS1 TRGS1
Description
0
0 A/D conversion start by external trigger is disabled
1 A/D conversion start by external trigger (TPU) is enabled
1
0 A/D conversion start by external trigger (8-bit timer) is enabled
1 A/D conversion start by external trigger pin (ADTRG) is enabled
DADR0—D/A Data Register 0
DADR1—D/A Data Register 1
H'FFA4
H'FFA5
D/A Converter
D/A Converter
Bit
:
7
6
5
4
3
2
1
0
Initial value :
0
0
0
0
0
0
0
0
Read/Write : R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Stores data for D/A conversion
Rev.7.00 Feb. 14, 2007 page 1032 of 1108
REJ09B0089-0700