KIT912J637EVME, Rev. 1.0
4
Freescale
KIT912J637EVME Introduction
3
KIT912J637EVME Introduction
Freescale Semiconductor’s KIT912J637EVME is a system solution that gives the user the capability to easily
evaluate most of the features provided by the MM912J637 - Xtrinsic Battery Sensor. The 912J637 features two
die in a single package. The 16-bit core and the analog die are connected via the die to die interface that
provides direct address access to the registers on the analog die. The analog die contains three 16-bit sigma
delta converters and enables simultaneous sampling of battery voltage and current, timer module, SCI module,
LIN physical interface, and other general registers. All external signals are accessible via header connectors,
and most of the signals can also be checked via test points. The evaluation module board also includes the
TBDML programming/debugging interface, so no external interface is needed. The board is powered from two
4.0 mm banana connectors. For quick familiarization with the device, a CodeWarrior Template is provided
together with the EVB.
3.1
MM912J637 Features
•
Battery voltage measurement
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Battery current measurement in up to eight ranges
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On-chip temperature measurement
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Normal and two low-power modes
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Current threshold detection and current averaging in standby => wake-up from low-power mode
•
Triggered wake-up from LIN and periodic wake-up
•
Signal low pass filtering (current, voltage)
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PGA (programmable low-noise gain amplifier) with automatic gain control feature
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Accurate internal oscillator (an external quartz oscillator may be used for extended accuracy)
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Communication via a LIN 2.1, LIN 2.0 bus interface
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S12 microcontroller with 128 kByte flash, 6.0 kByte RAM, 4.0 kByte data flash
•
Background debug module
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External temperature sensor option (T
SUP
, V
TEMP
)
•
Optional 2nd external voltage sense input (VOPT)
•
4 x 5.0 V GPIO including one wake-up capable high voltage input (PTB3/L0)
•
8 x MCU general purpose I/O including SPI functionality
•
Industry standard EMC compliance
3.2
Warnings
When working with the kit, always use an isolated laboratory power supply.
Keep in mind all ESD rules when handling the board. Avoid touching the connector pins. They are directly
connected to the device pins. Even though the device pins are ESD protected, this protection has its limits.
Some ESD events can destroy or damage the device, or cause its malfunction.
Содержание KIT912J637EVME
Страница 16: ...KIT912J637EVME Rev 1 0 16 Freescale Hardware Description Figure 6 Test Point Locations ...
Страница 18: ...KIT912J637EVME Rev 1 0 18 Freescale Schematics 8 Schematics Figure 7 KIT912J637EVME Schematic 1 ...
Страница 19: ...KT912J637UG Rev 1 0 Freescale 19 Schematics Figure 8 KIT912J637EVME Schematic 2 ...
Страница 21: ...KT912J637UG Rev 1 0 Freescale 21 Board Layout Figure 11 Top Silk screen Layer ...
Страница 27: ...KT912J637UG Rev 1 0 Freescale 27 Revision History ...
