Note

If no sub-addressing is included for the read procedure, then the reads start at register offset 00h and

continue byte-by-byte through the registers until the I2C controller terminates the read operation. If a

I2C address write occurred prior to the read, then the reads start at the sub-address specified by the

address write.

7.6 Register Maps

Table 7-6. CSR Registers

ACCESS

TAG

NAME

MEANING

R

Read

The field may be read by software.

W

Write

The field may be written by software.

S

Set

The field may be set by a write of one. Writes of zeros to the field have no effect.

C

Clear

The field may be cleared by a write of one. Writes of zeros to the field have no effect.

U

Update

Hardware may autonomously update this field.

NA

No Access

Not accessible or not applicable.

Table 7-7. CSR Registers Bit Address and Description

ADDRESS

BIT(S)

BIT NAME

DESCRIPTION

ACCESS

0x00 – 0x07

7:0

DEVICE_ID

For the TUSB320 device these fields return a string of

ASCII characters returning TUSB320

Addresses 0x07 - 0x00 = {0x00 0x54 0x55 0x53 0x42 0x33

0x32 0x30}

R

TUSB320, TUSB320I

SLLSEN9F – MAY 2015 – REVISED MARCH 2022

www.ti.com

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