SPNS141G August 2010 – October 2018 TMS570LS10106 , TMS570LS10116 , TMS570LS10206 , TMS570LS20206 , TMS570LS20216
PRODUCTION DATA.
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A voltage monitor has been implemented on this device. The purpose of this voltage monitor is to eliminate the requirement for a specific sequence when powering up the core and I/O voltage supplies. It also reduces the risk of corrupting memory or glitches on I/O pins during power-up, power-down or brown outs. The voltage monitor does not eliminate the need of a voltage supervisor circuit to guarantee that the device is held in reset when the voltage supplies are out of range. The voltage monitor thresholds can be found in the Vmon section of the device electrical specifications.
When the voltage monitor detects a low voltage on the I/O supply, it will assert a reset. When the voltage monitor detects a low voltage on the core supply, it asynchronously makes all output pins high impedance, and asserts a reset. The voltage monitor is disabled when the device is in halt mode.
The voltage monitor has three filter functions:
Parameter | Min | Max |
---|---|---|
Width of glitch on VCC that can be filtered out | 300ns | 1us |
Width of glitch on VCCIO that can be filtered out | 300ns | 1us |