EVK-SH3000USB Semtech, EVK-SH3000USB Datasheet - Page 8

• Manufacturer Part Number: EVK-SH3000USB
• Description: Tools, Development Kit
• Manufacturer: Semtech

Specifications of EVK-SH3000USB

• Kit Contents: Evaluation Kit
• Tool / Board Applications: MicroBuddy Devices
• Development Tool Type: Hardware / Software - Eval/Demo Board
• Mcu Supported Families: SH3000
• For Use With: SH3000 MicroBuddy
• Lead Free Status / RoHS Status: na

CPU Supervisor Functions
This is the CPU Supervisor function window. This window allows the user to configure the low-voltage reset and
watchdog timer blocks of the MicroBuddy.
SH3000 Evaluation Kit User Guide v0.96
SYSTEM MANAGEMENT
A. CPU Supervisor functions – The tab that displays this window.
B. The title bar changes color to indicate the status of the settings. A green bar indicates that the settings shown are
C. Reset voltage setting – This slider configures the reset voltage of the reset circuit. The limits are set to
D. Reset voltage – Actual value set by the slider (C).
E. Bandgap adjustment – Used in the calibration of the internal reference voltage for the reset circuit. It should
F. Watchdog source select – Allows the user to select 32.768 kHz or HF clock as the clock source to the
G. Force Timeout – When the Watchdog timer is enabled, this button forces the program to stop sending codes
the settings described in the registers table. When the user changes a setting on this page, the bar turns red,
indicating that the settings are different from the register table. Pressing Apply or Change now updates the
register table with the new settings and changes the bar back to green.
2.3 V and 4.4 V. The user can either drag the slider, or click on the bar above/below to increment/decrement by
one step (approximately 34 mV).
not be changed by the user. See the SH3000 Reference Manual for a more detailed explanation of this value.
watchdog circuit. If the HF clock is selected, the watchdog runs at a faster rate, but is also suspended during
clock stop operations, preventing false re-starts.
to the MicroBuddy to prevent Watchdog timer timeout. RESET then occurs and the status windows shows “Reset
caused by Watchdog Timeout.”
2003-03
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EVK-SH3000USB MicroBuddy™
Copyright ©2002-2003 Semtech Corporation
Evaluation Kit User Guide
www.semtech.co
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