參數(shù)資料
型號(hào)： TMS470R1B768PGEQR
廠商： TEXAS INSTRUMENTS INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 60 MHz, RISC MICROCONTROLLER, PQFP144
封裝： PLASTIC, LQFP-144
文件頁(yè)數(shù)： 11/49頁(yè)
文件大?。?/td> 552K
代理商： TMS470R1B768PGEQR
MibADC
www.ti.com ......................................................................................................................................................... SPNS108B – AUGUST 2005 – REVISED MAY 2008
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 #
SIGNAL PIN NAME
EVENT(G1SRC[1:0] OR EVSRC[1:0])
EVENT1
00
ADEVT
EVENT2
01
HET18
EVENT3
10
HET19
EVENT4
11
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).
Copyright 2005–2008, Texas Instruments Incorporated
19
Product Folder Link(s): TMS470R1B768
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