Texas Instruments MSP50C614 User Manual

Page 67

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Reduced Power Modes

2-37

MSP50C614 Architecture

Table 2–3. Programmable Bits Needed to Control Reduced Power Modes

→

deeper sleep

relatively less power

→

Control Bit

Label for
Control Bit

LIGHT

MID

DEEP

Idle state clock control
bit 10
ClkSpdCtrl register (0x3D)

A

0

1

1

Enable reference oscillator
bit 09 : CRO or
bit 08 : RTO
ClkSpdCtrl register (0x3D)

B

1

1

0

ARM
bit 14
IntGenCtrl register (0x38)

C

0

1

1

Enable PDM pulsing
bit 02
DAC Control register (0x34)

D

Should be cleared before any IDLE instruction.

IDLE instruction
(executes the mode)

E

Same instruction is used to engage any of the modes.

PLL multiplier
bits 07 through 00
ClkSpdCtrl register (0x3D)

F

Programmed value is 0

255 .

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