ISL97635A datasheet(22/29 Pages) RENESAS

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ISL97635A

FN6564 Rev.3.00

Page 22 of 29

Sep 26, 2017

Identification Register (0x03)

The ID register contains three bit fields to denote the LED driver

(always set to 1), manufacturer and the silicon revision of the

controller IC. The bit field widths allow up to 16 vendors with up to

eight silicon revisions each. In order to keep the number of silicon

revisions low, the revision field will not be updated unless the part

will make it out to the user’s factory. Thus, if during the

engineering development process three Silicon spins were needed,

the next available revision ID would be used for all three spins until

that same ID made it to the factory. Except Bit 7 which has to be 1,

all of the bits in this register are read-only.

• Vendor ID 9 represents Intersil Corp.

• Default value for register 0x03 is 0xC8.

The initial value of REV shall be 0. Subsequent values of REV will

increment by 1.

ID REGISTER

LED PANEL

MFG3

MFG2

MFG1

MFG0

REV2

REV1

REV0

Bit 7 = 1

Bit 6 (R)

Bit 5 (R)

Bit 4 (R)

Bit 3 (R)

Bit 2 (R)

Bit 1 (R)

Bit 0 (R)

BIT ASSIGNMENT

BIT FIELD DEFINITIONS

MFG[3..0]

= Manufacturer ID. See “Identification Register

(0x03)” on page 22.

data 0 to 8 in decimal correspond to other vendors

data 9 in decimal represents Intersil ID

data 10 to 14 in decimal are reserved

data 15 in decimal Manufacturer ID is not

implemented

REV[2..0]

= Silicon rev (Rev 0 through Rev 7 allowed for silicon

spins)

FIGURE 27. DESCRIPTIONS OF ID REGISTER

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