DS280DF810ABVT datasheet(30/51 Pages) TI1

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DS280DF810

SNLS538A – SEPTEMBER 2016 – REVISED OCTOBER 2019

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•

R: 10 k

Ω to GND

•

F: Float

•

1: 1 k

Ω to VDD

Table 6. SMBus Address Map

8-BIT WRITE ADDRESS [HEX]

REQUIRED ADDRESS PIN STRAP VALUE

ADDR1

ADDR0

0x30

0x32

0x34

0x36

0x38

0x3A

0x3C

0x3E

0x40

0x42

0x44

0x46

0x48

0x4A

0x4C

0x4E

8.5 Programming

8.5.1 Bit Fields in the Register Set

Many of the registers in the DS280DF810 are divided into bit fields. This allows a single register to serve multiple

purposes which may be unrelated. Often, configuring the DS280DF810 requires writing a bit field that makes up

only part of a register value while leaving the remainder of the register value unchanged. The procedure for

accomplishing this task is to read in the current value of the register to be written, modify only the desired bits in

this value, and write the modified value back to the register. Of course, if the entire register is to be changed,

rather than just a bit field within the register, it is not necessary to read in the current value of the register first. In

all register configuration procedures described in the following sections, this procedure should be kept in mind. In

some cases, the entire register is to be modified. When only a part of the register is to be changed, however, the

procedure described above should be used.

Each bit or field within a register has one of the following access properties:

•

R: Read-only

•

RW: Read or Write

•

RWSC: Read or Write, self-clearing

8.5.2 Writing to and Reading from the Global/Shared/Channel Registers

The DS280DF810 has 3 types of registers:

1) Global Registers – These registers can be accessed at any time and are used to select individual channel

registers, the shared registers or to read back the TI ID and version information.

2) Shared Registers – These registers are used for device-level configuration, status read back or control.

3) Channel Registers – These registers are used to control and configure specific features for each individual

channel. All channels have the same channel register set and can be configured independent of each other.

The global registers can be accessed at any time, regardless of whether the shared or channel register set is

selected. The DS280DF810 global registers are located on addresses 0xEF-0xFF. The function of the global

registers falls into the following categories:

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