Rev. 3.0, 03/01, page 344 of 390
Table 19.4
A/D Conversion Time (Single Mode) unit:
µµµµ
s
Symbol
Min
Typ
Max
Synchronization delay
t
D
0.5
-
1.2
Input sampling time
T
SPL
-
2.8
-
A/D conversion time
T
CONV
-
-
10
19.3.4
A/D External Trigger Input Timing
A/D conversion can be externally triggered. When the TRGE bit is set to 1 in ADCR, the external
trigger input is enabled by TMOUT#. A high-to-low transition at the TMOUT# sets the ADST bit
of ADCSR to 1, and starts A/D conversion. Other operation, in both single and scan modes, are the
same as if the ADST bit had been set to 1 by software. Figure 19-5 shows the timing.
CLK
TMOUT#
Internal
trigger signal
ADST
A/D conversion
Figure 19.5 External Trigger Input Timing
19.4
Interrupts
The A/D converter generates an interrupt (ADI) at the end of A/D conversion. The ADI interrupt
request can be enabled or disabled by the ADIE bit in ADCSR.
Содержание HD64465
Страница 25: ...Rev 3 0 03 01 page 6 of 390 ...
Страница 59: ...Rev 3 0 03 01 page 40 of 390 ...
Страница 97: ...Rev 3 0 03 01 page 78 of 390 ...
Страница 147: ...Rev 3 0 03 01 page 128 of 390 ...
Страница 199: ...Rev 3 0 03 01 page 180 of 390 ...
Страница 247: ...Rev 3 0 03 01 page 228 of 390 ...
Страница 385: ...Rev 3 0 03 01 page 366 of 390 ...
Страница 389: ...Rev 3 0 03 01 page 370 of 390 ...
Страница 409: ...Rev 3 0 03 01 page 390 of 390 ...