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| 型號： | TMP470R1B768PGE |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 16/32-Bit RISC Flash Microcontroller |
| 中文描述： | 16/32位RISC閃存微控制器 |
| 文件頁數(shù)： | 19/50頁 |
| 文件大小： | 393K |
| 代理商： | TMP470R1B768PGE |
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MibADC
TMS470R1B768
16/32-Bit RISC Flash Microcontroller
SPNS108A–AUGUST 2005–REVISED AUGUST 2006
The multi-buffered analog-to-digital converter (MibADC) accepts an analog signal and converts the signal to a
10-bit digital value.
The B768 MibADC module can function in two modes: compatibility mode, where its programmer's model is
compatible with the TMS470R1x ADC module and its digital results are stored in digital result registers; or in
buffered mode, where the digital result registers are replaced with three FIFO buffers, one for each conversion
group [event, group1(G1), and group2 (G2)]. In buffered mode, the MibADC buffers can be serviced by
interrupts or by the DMA.
MibADC Event Trigger Enhancements
The MibADC includes two major enhancements over the event-triggering capability of the TMS470R1x ADC.
Both group1 and the event group can be configured for event-triggered operation, providing up to two
event-triggered groups.
The trigger source and polarity can be selected individually for both group 1 and the event group from the
three options identified in
Table 8
.
Table 8. MibADC Event Hookup Configuration
SOURCE SELECT BITS FOR G1 OR
EVENT(G1SRC[1:0] OR EVSRC[1:0])
00
01
10
11
EVENT #
SIGNAL PIN NAME
EVENT1
EVENT2
EVENT3
EVENT4
ADEVT
HET18
HET19
N/C
For group 1, these event-triggered selections are configured via the group 1 source select bits (G1SRC[1:0]) in
the AD event source register (ADEVTSRC[5:4]). For the event group, these event-triggered selections are
configured via the event group source select bits (EVSRC[1:0]) in the AD event source register
(ADEVTSRC[1:0]).
For more detailed functional information on the MibADC, see the
TMS470R1x Multi-Buffered Analog-to-Digital
Converter (MibADC) Reference Guide
(literature number SPNU206).
19
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