SH3100 datasheet(21/80 Pages) SEMTECH

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SH3100

POWER MANAGEMENT

www.semtech.com

Address(hex): 00

Description

(RW) 8 Most significant bits

of the WakeupTime .

Default Value: 0000 0000

Reset Event: P

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Bit No.

Description

Bit Value

Value Description

[7:0]

WakeupTime

Most significant byte of the

4-byte WakeupTime

00 (hex)

The Periodic Interval Timer (PIT) generates a periodic interrupt, the

interval of which is set by the four WakeupTime registers.

Period = WakeupTime/32768.

Setting WakeupTime to 0 disables the PIT

This register only takes effect once the least significant byte

(address 03) has been written. All four bytes should be written,

even if some have not changed

Address(hex): 01

Description

(RW) Bits [23:16] of the

WakeupTime.

Default Value: 0000 0000

Reset Event: P

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Bit No.

Description

Bit Value

Value Description

[7:0]

WakeupTime

Bits [23:16] of the 4-byte WakeupTime

00 (hex)

See register 00 description

Address(hex): 02

Description

(RW) Bits [15:8] of the

WakeupTime.

Default Value: 0000 0000

Reset Event: P

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Bit No.

Description

Bit Value

Value Description

[7:0]

WakeupTime

Bits [15:8] of the 4-byte WakeupTime

00 (hex)

See register 00 description

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