D12320VF25IV Datasheet, PDF (1216/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Appendix B Internal I/O Registers
ADCR—A/D Control Register
Bit
:
7
6
5
TRGS1 TRGS0 —
Initial value :
0
0
1
Read/Write : _R/W
R/W
—
H'FF99
4
3
2
— CKS1 CH3
1
1
1
—
R/W R/W
A/D Converter
1
0
—
—
1
1
—
—
Clock Select
Channel Select
Reserved
Only 1 should be written
to this bit
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) (Initial value)
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
Rev.6.00 Sep. 27, 2007 Page 1184 of 1268
REJ09B0220-0600