LED7708 datasheet(34/53 Pages) STMICROELECTRONICS

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Recommended operating conditions

LED7708

34/53

Doc ID 022698 Rev 1

Warning:

(†) In order to prevent damage to the device or to the external

circuitry, these bits are locked when the DEN bit of DEVCFG0

is asserted.

OCAD

R/W

Open channel auto disconnection

0= open channels not disconnected

1= open channels auto-disconnection

SCAD

R/W

Shorted channel auto disconnection

0= shorted channels not disconnected

1= shorted channels auto-disconnection

CFP

Read only

Critical fault protection

0= no protection occurred

1= OV or OT protection occurred

RWAS

R/W

Regulation window amplitude selection

0= 300 mV regulation window

1= 600 mV regulation window

DTS0

R/W

LED short detection threshold selection

(See Table 17).

DTS1

R/W

GSME

R/W

Grayscale mode enable

0= group dimming mode

1= grayscale dimming mode

CRS†

R/W

Current range selector†

0= lower current range (20 mA-45 mA)

1= upper current range (40 mA-85 mA)

OVRS

Read only

Output voltage regulation status

0= output voltage not optimized

1= output voltage optimized

OVRE

R/W

Output voltage regulation enable

0= output voltage regulation disabled

1= output voltage regulation enabled

SDMS†

R/W

Slave device mode selection†

0= no slave devices

1= slave devices connected

DEST

R/W

Destination register address

0= FIFO loaded into DEVCFG0

1= FIFO loaded into DEVCFG1

Table 14.

DEVCFG0 register (continued)

Bit

Position

Attribute

Default

Description

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