TMP1827 datasheet(49/68 Pages) TI

49 / 68 page

8.6.6 Short Address Register (Scratchpad-1 offset = 06h) [reset = 00h]

The register is used to program the short address for the device. The host can store the updated setting to the

configuration EEPROM using the COPY SCRATCHPAD-1 function command. At power-on reset, the register

setting is automatically restored from the configuration EEPROM. As described in Flexible Device Address,

the specific short address decoded value is overlaid on the non-volatile memory content restored to the short

address register.

The short address register can only be updated by the application when the FLEX_ADDR_MODE bits have the

value '00b'. Any write to register when the FLEX_ADDR_MODE bits are not '00b' shall be ignored by the device.

Return to Register Map.

Figure 8-37. Short Address Register

SHORT_ADDRESS[7:0]

RW-00h

Table 8-12. Short Address Register Field Descriptions

Bit

Field

Type

Reset

Description

7:0

SHORT_ADDRESS[7:0]

00h

Stores the short address for the device which may be used

to access the device without sending the 64-bit Unique Device

Address.

When FLEX_ADDR_MODE[1:0] = 0h, the 8-bit value of the

When FLEX_ADDR_MODE[1:0] = 1h or 2h, the upper 4-bit of

the register is updated from the value committed to the non-

volatile memory, while the lower 4-bit are decoded based on

IO0-IO3 connection on the board or address decoding based on

the resistor connected to ADDR pin, respectively.

When FLEX_ADDR_MODE[1:0] = 3h, the upper 2-bit of the

memory, the next 2-bit are decoded from IO1 and IO0, and the

last 4-bit is decoded from the resistor connected to ADDR pin.

The short address is also used during stacked conversion mode

to stagger the active conversion.

www.ti.com

TMP1827

SBOSA15 – SEPTEMBER 2022

Submit Document Feedback

Product Folder Links: TMP1827

TMP1827 Datasheet(PDF) 49 Page - Texas Instruments