MEC1404 Datasheet, PDF (81/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
Offset ^08h
Bits
Description
1 PECI Sleep Enable
0: block is free to use clocks as necessary.
1: block is commanded to sleep at next available moment.
0 INT Sleep Enable
0: block is free to use clocks as necessary.
1: block is commanded to sleep at next available moment.
Type
R/W
Default
0h
Reset
Event
nSYSR
ST
R/W
0h
nSYSR
ST
Note:
The basic timers in this device have an auto-reload mode. When this mode is selected, the block's clk_req
equation is always asserted, which will prevent the device from gating its clock tree and going to sleep.
When the firmware intends to put the device to sleep, none of the timers should be in auto-reload mode.
Alternatively, use the timer's HALT function inside the control register to stop the timer in auto-reload mode
so it can go to sleep.
3.9.2 EC CLOCK REQUIRED STATUS REGISTERS (EC_CLK_REQ_STS)
Offset ^0Ch
Bits
Description
31 TIMER16_1 Clock Required
0: block does NOT need clocks.
1: block requires clocks.
30 TIMER16_0 Clock Required
0: block does NOT need clocks.
1: block requires clocks.
29 EC_REG_BANK Clock Required
0: block does NOT need clocks.
1: block requires clocks.
28:27 RESERVED
26 PWM7 Clock Required
0: block does NOT need clocks.
1: block requires clocks.
25 PWM6 Clock Required
0: block does NOT need clocks.
1: block requires clocks.
24 PWM5 Clock Required
0: block does NOT need clocks.
1: block requires clocks.
Type
R
Default
0h
Reset
Event
nSYSR
ST
R
0h
nSYSR
ST
R
0h
nSYSR
ST
RES
R
0h
nSYSR
ST
R
0h
nSYSR
ST
R
0h
nSYSR
ST
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DS00001956D-page 81