MEC1322 datasheet(57/456 Pages) MICROCHIP

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DS00001719D-page 57

MEC1322

Note 3-11

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.

3.9.4

EC CLOCK REQUIRED STATUS REGISTERS (EC_CLK_REQ_STS)

8 PROCESSOR Sleep Enable

0: block is free to use clocks as necessary.

1: block is commanded to sleep at next available moment.

R/W

VCC1_R

ESET

7 TFDP Sleep Enable

0: block is free to use clocks as necessary.

1: block is commanded to sleep at next available moment.

R/W

VCC1_R

ESET

6 DMA Sleep Enable

0: block is free to use clocks as necessary.

1: block is commanded to sleep at next available moment.

R/W

VCC1_R

ESET

5 PMC Sleep Enable

0: block is free to use clocks as necessary.

1: block is commanded to sleep at next available moment.

R/W

VCC1_R

ESET

4 PWM0 Sleep Enable

0: block is free to use clocks as necessary.

1: block is commanded to sleep at next available moment.

R/W

VCC1_R

ESET

3 RESERVED

RES

2 TACH0 Sleep Enable

0: block is free to use clocks as necessary.

1: block is commanded to sleep at next available moment.

R/W

VCC1_R

ESET

1 PECI Sleep Enable

0: block is free to use clocks as necessary.

1: block is commanded to sleep at next available moment.

R/W

VCC1_R

ESET

0 INT Sleep Enable

0: block is free to use clocks as necessary.

1: block is commanded to sleep at next available moment.

R/W

VCC1_R

ESET

Offset

0Ch

Bits

Description

Type

Default

Reset

Event

31 TIMER16_1 Clock Required

0: block does NOT need clocks.

1: block requires clocks.

R0h

VCC1_R

ESET

30 TIMER16_0 Clock Required

0: block does NOT need clocks.

1: block requires clocks.

R0h

VCC1_R

ESET

29 EC_REG_BANK Clock Required

0: block does NOT need clocks.

1: block requires clocks.

R0h

VCC1_R

ESET

28:23 RESERVED

RES

Offset

08h

Bits

Description

Type

Default

Reset

Event

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