LED7708 datasheet(35/53 Pages) STMICROELECTRONICS

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LED7708

Recommended operating conditions

Doc ID 022698 Rev 1

35/53

8.5.7

DEVCFG1 register

Table 15.

DEVCFG1 register

Bit

Position

Attribute

Default

Description

ADJ0

R/W

Current gain adjust

ADJ1

R/W

ADJ2

R/W

ADJ3

R/W

ADJ4

R/W

ADJ5

R/W

CGRS

R/W

Current gain range selector

0= range 1 selected

1= range 2 selected

See Section 8.8.1: Current generators gain

adjust.

LAT16

R/W

Bits #16 and #17 of dimming latency

(See GSLAT register)

LAT17

R/W

BDFS

R/W

Brightness data format selector

0= 16x16-bit format

1= 1x256-bit or 1x192-bit format

BRLS

R/W

Brightness registers length selector

0= 12-bit resolution

1= 16-bit resolution

DTIN

R/W

Dimming timing inversion selector

0= dimming cycle off-phase first

1= dimming cycle on-phase first

DASS

R/W

Data synchronization selector

0= brightness data immediately updated at

the falling edge of LE

1= brightness data updated at the end of the

current dimming cycle

DSYS†

R/W

Dimming synchronization selector†

0= GSSY pin is pulse output

1= GSSY pin is trigger input

CSRD

R/W

Continuous status reading

0= continuous status reading disabled

1= continuous status reading enabled

DEST

R/W

Destination register address

0= FIFO loaded into DEVCFG0

1= FIFO loaded into DEVCFG1

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