Section 13 A/D Converter (ADC)
Rev. 3.00 Sep. 27, 2007 Page 484 of 758
REJ09B0243-0300
13.3.4
A/D Trigger Select Register_0 (ADTSR_0)
The ADTSR_0 enables an A/D conversion started by an external trigger signal.
In particular, the four channels in A/D module 0 are divided into two groups (group 0 and group 1)
and the A/D trigger can be specified for each group independently in 2-channel scan mode.
Bit:
Initial value:
R/W:
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
TRG11S[3:0]
TRG01S[3:0]
TRG1S[3:0]
TRG0S[3:0]
Bit Bit
Name
Initial
Value
R/W Description
15 to 12 TRG11S[3:0] 0000
R/W
A/D Trigger 1 Group 1 Select 3 to 0
Select an external trigger or MTU2 trigger to start A/D
conversion for group 1 when A/D module 1 is in 2-
channel scan mode.
0000: External trigger pin (
ADTRG
) input
0001: TRGA input capture/compare match for each
MTU2 channel or TCNT_4 underflow (trough) in
complementary PWM mode (TRGAN)
0010: MTU2 channel 0 compare match (TRG0N)
0011: MTU2 A/D conversion start request delaying
(TRG4AN)
0100: MTU2 A/D conversion start request delaying
(TRG4BN)
0101: Setting prohibited
0110: Setting prohibited
0111: Setting prohibited
1xxx: Setting prohibited
When switching the selector, first clear the ADST bit in
the A/D control register (ADCR) to 0.
Specify different trigger sources for the group 0 and
group 1 conversion requests so that a group 0
conversion request is not generated simultaneously
with a group 1 conversion request in 2-channel scan
mode.
Содержание SH7124 R5F7124
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Страница 400: ...Section 9 Multi Function Timer Pulse Unit 2 MTU2 Rev 3 00 Sep 27 2007 Page 380 of 758 REJ09B0243 0300 ...
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