KIT912H634EVME Freescale Semiconductor, KIT912H634EVME Datasheet - Page 31

• 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

MCR register is performed, communication over the BDM interface between the PC and the target is terminated. The reason is
that during wake-up, the device is transitioning from the reset to normal mode. The BDM interface can interrupt this transition,
so the device cannot wake-up properly. After the device completes the wake-up sequence, the user must restore the BDM
communication manually. The user must click twice on the “Stop” icon, placed on the toolbar of the FreeMASTER application, as
shown in
7.4
7.4.1
runs in a continuous loop, checking the LIN communication (if enabled) and updating the analog die registers, based on the
FreeMASTER variables and watchdog servicing (if enabled). Other than this, only one interrupt routine is implemented
(D2D_ISR), which handles the SCI receive interrupt routine used by the LIN slave driver.
Freescale Semiconductor
• Lx wake-up - the device is awakened when the logical state of any enabled input L0-L5 is detected. The state of the Lx
• Cyclic sense wake-up - the same principle as the previous one, but the input Lx is sensed periodically. This allows lower
Figure 14
The low power modes are entered by writing to the Mode Control Register (MCR) of the analog die. Anytime a write to the
The main embedded software flow chart is shown in
inputs is checked continuously.
power consumption during the SLEEP or STOP mode. The Lx inputs are fed by periodic switching of HS1 or HS2 switch
with the corresponding detection of Lx state change.
Figure
Embedded Software
shows the low power modes frame of the FreeMASTER control page.
Main Software Flow Chart
Figure 15. Re-enabling of the BDM Communication After Return from Low Power Modes
15.
click
KIT912H634EVME User’s Guide, Rev 1.0
Figure 14. Low Power Modes
Figure
16. After the device and the application initialization, the software
click
Forced wake-up option
entering low power modes
Lx and cyclic sense
Software Description
wake-up option
Action buttons for
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