參數(shù)資料
型號(hào)： TMX470R1A64PN
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)： 15/46頁
文件大?。?/td> 381K
代理商： TMX470R1A64PN
www.ti.com
A
MibADC
TMS470R1A64
16/32-Bit RISC Flash Microcontroller
SPNS099–NOVEMBER 2004
The multi-buffered analog-to-digital converter (MibADC) accepts an analog signal and converts the signal to a
10-bit digital value.
The A64 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.
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 group1 and the event group from the
three options identified in Table 7.
Table 7. 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
Reserved
For group 1, these event-triggered selections are configured via the group1 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
(ADEVTSRC.[1:0]).
event
source
register
For more detailed functional information on the MibADC, see the
TMS470R1x Multi-Buffered Analog-to-Digital
Converter (MibADC) Reference Guide
(literature number SPNU206).
15
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