h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 696

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 20 A/D Converter
20.2.3
ADCR is an 8-bit readable/writable register that enables or disables external triggering of A/D
conversion operations.
ADCR is initialized to H'3F by a reset, and in standby mode, watch mode, subactive mode,
subsleep mode, and module stop mode.
Bits 7 and 6—Timer Trigger Select 1 and 0 (TRGS1, TRGS0): These bits select enabling or
disabling of the start of A/D conversion by a trigger signal. Only set bits TRGS1 and TRGS0
while conversion is stopped.
Bit 7
TRGS1
0
1
Bits 5 to 0—Reserved: Always be read as 1, and cannot be modified.
Rev. 3.00 Jan 18, 2006 page 668 of 1044
REJ09B0280-0300
Bit
Initial value
Read/Write
A/D Control Register (ADCR)
Bit 6
TRGS0
0
1
0
1
TRGS1
R/W
7
0
Description
Start of A/D conversion by external trigger is disabled
Start of A/D conversion by external trigger is disabled
Start of A/D conversion by external trigger (8-bit timer) is enabled
Start of A/D conversion by external trigger pin is enabled
TRGS0
R/W
6
0
—
—
5
1
—
—
4
1
—
—
3
1
—
—
2
1
—
—
1
1
(Initial value)
—
—
0
1