Renesas H8S/2319 series Hardware Manual page 554

Group
Selection Channel Selection
CH2 CH1
0 0
1
1 0
1
14.2.3 A/D Control Register (ADCR)
Bit : 7
TRGS1
Initial value : 0
R/W : R/W
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 or 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 (ADST = 0).
Bit 7 Bit 6
TRGS1 TRGS0
0 0
1
1 0
1
Rev. 5.00, 12/03, page 524 of 1088
CH0 Single Mode (SCAN = 0) Scan Mode (SCAN = 1)
0 AN0 (Initial value)
1 AN1
0 AN2
1 AN3
0 AN4
1 AN5
0 AN6
1 AN7
6 5
TRGS0 —
0 1
R/W —
Description
A/D conversion start by external trigger is disabled
A/D conversion start by external trigger (TPU) is enabled
A/D conversion start by external trigger (8-bit timer) is enabled
A/D conversion start by external trigger pin (ADTRG) is enabled
Description
4 3
— CKS1 —
1 1
— R/W R/W
AN0
AN0, AN1
AN0 to AN2
AN0 to AN3
AN4
AN4, AN5
AN4 to AN6
AN4 to AN7
2 1 0
— —
1 1 1
— —
(Initial value)