Texas Instruments Hercules TMS570LS04x/03x LaunchPad Evaluation Kit LAUNCHXL-TMS57004 LAUNCHXL-TMS57004 数据表
产品代码
LAUNCHXL-TMS57004
SPNS186A – OCTOBER 2012 – REVISED SEPTEMBER 2013
5
Peripheral Information and Electrical Specifications
5.1
Peripheral Legend
Table 5-1. Peripheral Legend
Abbreviation
Full Name
MibADC
Multi-Buffered Analog to Digital Converter
CCM-R4
CPU Compare Module – CortexR4
CRC
Cyclic Redundancy Check
DCAN
Controller Area Network
DCC
Dual Clock Comparator
ESM
Error Signaling Module
GIO
General-Purpose Input/Output
HTU
High End Timer Transfer Unit
LIN
Local Interconnect Network
MibSPI
Multi-Buffered Serial Peripheral Interface
N2HET
Platform High End Timer
RTI
Real-Time Interrupt Module
SCI
Serial Communications Interface
SPI
Serial Peripheral Interface
VIM
Vectored Interrupt Manager
eQEP
Enhanced Quadrature Encoder Pulse
5.2
Multi-Buffered 12-bit Analog-to-Digital Converter
The multibuffered A-to-D converter (MibADC) has a separate power bus for its analog circuitry that
enhances the A-to-D performance by preventing digital switching noise on the logic circuitry which could
be present on V
enhances the A-to-D performance by preventing digital switching noise on the logic circuitry which could
be present on V
SS
and V
CC
from coupling into the A-to-D analog stage. All A-to-D specifications are given
with respect to AD
REFLO
unless otherwise noted.
Table 5-2. MibADC Overview
Description
Value
Resolution
12 bits
Monotonic
Assured
Output conversion code
00h to FFFh [00 for V
AI
≤ AD
REFLO
; FFF for V
AI
≥ AD
REFHI
]
5.2.1
Features
•
12-bit resolution
•
AD
REFHI
and AD
REFLO
pins (high and low reference voltages)
•
Total Sample/Hold/Convert time: 600ns Typical Minimum at 30MHz ADCLK
•
One memory region per conversion group is available (event, group 1, group 2)
•
Allocation of channels to conversion groups is completely programmable
•
Memory regions are serviced by interrupt
•
Programmable interrupt threshold counter is available for each group
•
Programmable magnitude threshold interrupt for each group for any one channel
•
Option to read either 8-bit, 10-bit or 12-bit values from memory regions
•
Single or continuous conversion modes
•
Embedded self-test
•
Embedded calibration logic
68
Peripheral Information and Electrical Specifications
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