S i M 3 L 1 x x
38
Rev 1.1
4.1.6. Process/Voltage/Temperature Monitor (TIMER2 and PVTOSC0)
The Process/Voltage/Temperature monitor consists of two modules (TIMER2 and PVTOSC0) designed to monitor
the digital circuit performance of the SiM3L1xx device.
The PVT oscillator (PVTOSC0) consists of two oscillators, one operating from the memory LDO and one operating
from the digital LDO. These oscillators have two independent speed options and provide the clocks for two 16-bit
timers in the TIMER2 module using the EX input. By monitoring the resulting counts of the TIMER2 timers,
firmware can monitor the current device performance and increase the scalable LDO regulator (LDO0) output
voltages as needed or decrease the output voltages to save power.
The PVT monitor has the following features:
Two separate oscillators and timers for the memory and digital logic voltage domains.
Two oscillator output divider settings.
Provides a method for monitoring digital performance to allow firmware to adjust the scalable LDO
regulator output voltages to the lowest level possible, saving power.
Summary of Contents for SiM3L1xx
Page 2: ...2 Rev 1 1 ...
Page 62: ...SiM3L1xx 62 Rev 1 1 6 2 SiM3L1x6 Pin Definitions Figure 6 2 SiM3L1x6 GQ Pinout ...
Page 63: ...SiM3L1xx Rev 1 1 63 Figure 6 3 SiM3L1x6 GM Pinout ...
Page 69: ...SiM3L1xx Rev 1 1 69 6 3 SiM3L1x4 Pin Definitions Figure 6 4 SiM3L1x4 GM Pinout ...
Page 74: ...SiM3L1xx 74 Rev 1 1 6 4 TQFP 80 Package Specifications Figure 6 5 TQFP 80 Package Drawing ...
Page 81: ...SiM3L1xx Rev 1 1 81 6 6 TQFP 64 Package Specifications Figure 6 9 TQFP 64 Package Drawing ...
Page 89: ...SiM3L1xx Rev 1 1 89 Figure 7 3 SiM3L1x4 GM Revision Information ...