UPD161831 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

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UPD161831

240/244-OUTPUT TFT-LCD SOURCE DRIVER WITH TIMING GENERATOR (COMPATIBLE WITH 64-GRAY SCALES)

NEC => Renesas Technology 

µPD161831

4.2.19 Power supply function LPM setting register

This register is used to set the power supply function low-power mode, etc.

Table 4−19. Power Supply Function LPM Setting Register (R28)

Bit Name

Bit 0: LPM

Bit 1: LFS0

Bit 2: LFS1

Bit 3: LFS2

Bit 4: LFS3

Bit 5: LACS0

Bit 6: LACS1

Bit 7

Mode

Controls the power supply function low-power mode

LPM = 0: Normal mode

LPM = 1: Low power mode

Selects the VDC2 boost frequency when the power supply function low-

power mode is selected.

<LFS0 = 0, LFS1 = 0>: fOSC/8, <LFS0 = 1, LFS1 = 0>: fOSC/16

<LFS0 = 0, LFS1 = 1>: fOSC/32, <LFS0 = 1, LFS1 = 1>: fOSC/64

Selects the VDD2, VSS1, and VSS2 boost frequency when the power supply

function low-power mode is selected.

<LFS2 = 0, LFS3 = 0>: fOSC/8, <LFS2 = 1, LFS3 = 0>: fOSC/16

<LFS2 = 0, LFS3 = 1>: fOSC/32, <LFS2 = 1, LFS3 = 1>: fOSC/64

Selects the VR and VS amplifier current.

<LACS0 = 0, LACS1 = 0>: Amp. current = 1.25 µA

<LACS0 = 1, LACS1 = 0>: Amp. current = 2.5 µA

<LACS0 = 0, LACS1 = 1>: Amp. current = 5.0 µA

<LACS0 = 1, LACS1 = 1>: Amp. current = 7.5 µA

Use prohibited

Preliminary Product Information S16269EJ2V0PM

35

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