MEC1404 Datasheet, PDF (384/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
28.5.1 POWER DOMAINS
VTR
Name
28.5.2 CLOCK INPUTS
Name
5Hz_Clk
48 MHz Ring Oscillator
28.5.3 RESETS
nSYSRST
Name
Description
Main power. The source of main power for the device is system
dependent.
32.768 KHz clock
48 MHz clock
Description
Block reset
Description
28.6 Interrupts
Each PWM can generate an interrupt. The interrupt is asserted for one 48 MHz clock period whenever the PWM WDT
times out. The PWM WDT is described in Section 28.8.3.1, "PWM WDT," on page 388.
PWM_WDT
Source
PWM watchdog time out
Description
28.7 Low Power Mode
The Blinking/Breathing PWM may be put into a low power mode by the chip-level power, clocks, and reset (PCR)
circuitry. The low power mode is only applicable when the Blinking/Breathing PWM is operating in the General Pur-
pose PWM mode. When the low speed clock mode is selected, the blinking/breathing function continues to operate,
even when the 48 MHz clock is stopped. Low power mode behavior is summarized in the following table:
DS00001956D-page 384
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