MPC18730EPR2 datasheet(24/35 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

18730

FUNCTIONAL DEVICE OPERATION

LOGIC COMMANDS AND REGISTERS

CLEAR: CLEAR Control

1 = CLEAR is high

0 = CLEAR is low

SLEEP: SLEEP Control

1 = SLEEP is high

0 = SLEEP is low

Reserved: Freescale defined register

1 = Forbidden

0 = Required

Reserved: Freescale defined register

1 = Forbidden

0 = Required

Reserved: Freescale defined register

1 = Forbidden

0 = Required

Reserved : Freescale defined register

1 = Forbidden

0 = Required

Reserved : Freescale defined register

1 = Forbidden

0 = Required

Reserved: Freescale defined register

1 = Forbidden

0 = Required

Note: Do NOT change Reserved Register from default

value.

*1: Data write to this address (1000) is allowed for the

most significant two bits only. The least significant 6 bits are

only used for the factory test. When writing data, always write

0 to these six bits.

PSW1: VOUT1 Power Switch control

1 = Power Switch on

0 = Power Switch off

PSW2: VOUT2 Power Switch control

1 = Power Switch on

0 = Power Switch off

PGOOD1: PGOOD1 Mask

1 = PGOOD1 mask on

0 = PGOOD1 mask off

VO2_SENSE: DC/DC Converter Channel 2 output Control

1 = DDC2 on

0 = DDC2 off

SREG1: Series Pass Regulator Channel1 output Control

1 = Regulator on

0 = Regulator off

SREG2: Series Pass Regulator Channel2 output

Control *3

1 = Regulator off

0 = Regulator on

SREG3: Series Pass Regulator Channel3 output Control

1 = Regulator on

0 = Regulator off

PGOOD2: PGOOD2 Mask

1 = PGOOD2 mask on

0 = PGOOD2 mask off

*1: When switching the output voltage of VO1_SENSE (2),

write 1 to the PGOOD1 (2) Mask bit in advance to fix the rest

output to High for preventing erroneous operation.

*2: When turning DDC2 OFF, set the PGOOD2 bit to High

to Mask PGOOD2. If you turn DDC2 OFF, the power switch

2 also turns OFF.

Table 17. CLEAR and SLEEP Control Register

1000

Data1

Data2

Bit

Name

CLEAR

SLEEP

Reserved

Default

Table 18. Power Mode Register

0001

Data1

Data2

Bit

Name

PSW1

PSW2

PGOOD1

VOUT2

SREG1

SREG2

SREG3

PGOOD2

Default

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