KIT912H634EVME Freescale Semiconductor, KIT912H634EVME Datasheet - Page 29

• Manufacturer Part Number: KIT912H634EVME
• Description: Development Boards & Kits - S08 / S12 DUAL LOW&HIDE SWITCH EVB
• Manufacturer: Freescale Semiconductor

Specifications of KIT912H634EVME

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: MM912H634, MM912G634
• Core: S12
• Interface Type: LIN, USB
• Operating Supply Voltage: 8 V to 18 V
• Description/function: Gives the user capability to easily evaluate most features provided by the MM912H634 - Integrated Dual Low Side, and Dual High Side Switch with Embedded MCU and LIN Transceiver for Relay Drivers

7.3.4.5
Since the baud rate, message ID, and message size are defined in the LIN slave driver before the code compilation, these
parameters are already preset, and the user is not allowed to modify them. However, it is possible to change these parameters
in the source code and recompile the embedded application.
7.3.4.6
PWM module. To turn any switch on, the user must click on one of the four green buttons on the upper part of the PWM module
panel section. The PWM will have no effect on the HS and LS switching unless the switches are turned on. The PWM channels
of the PWM module can be enabled separately by checking the tick box next to “Enable PWM Channel 0” or “Enable PWM
Channel 0”, respectively. The frequency and the duty cycle are set by a pair of sliders. The PWM module allows setting a positive
or negative duty cycle, chosen by a pair of radio buttons, right of the duty-cycle slider. The value of the PWM frequency is
determined by the value of the frequency slider and the frequency range scroll-down box, positioned right of the frequency slider.
The value of the frequency displayed above the slider is the percentage of the range. There is a pair of radio buttons named
“Channel 0 Setting” and “Channel 1 Setting”. By toggling of these radio buttons, the user can set the frequency and the duty cycle
for both channels. At the bottom of this frame, the user can enable the PWM for each HS and LS switch independently, as well
as assign the PWM channel.
Freescale Semiconductor
The control panel provides limited LIN functionality. The user can only enable the LIN module and view the received data.
The control panel allows full control of the HS and LS switches, in conjunction with the wide frequency range of the 2-channel
Enabling the PWM on the switches
Toggling the channels setting
Enabling the PWM channels
HS/LS switches control
LIN Module
High Side and Low Side Switch Control, and PWM Module
Duty-cycle slider
Frequency slider
Even though the PWM module is capable of generating frequencies over 1.0 MHz, the HS
and LS switches can be controlled by frequencies only up to 20 kHz. The user can test the
PWM module at higher frequencies on the PTB2 output pin.
Figure 12. HS and LS Switches Control, PWM Module
KIT912H634EVME User’s Guide, Rev 1.0
Figure 11. LIN Module Block
Warning
Software Description
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