STULPI01A_08 datasheet(38/44 Pages) STMICROELECTRONICS

tên linh kiện	STULPI01A

Giải thích chi tiết về linh kiện	High speed USB On-The-Go ULPI transceiver

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ULPI registers

STULPI01A - STULPI01B

38/44

Table 25.

Debug register

Address: 15h (Read-only)

(Indicates the current value of various signals useful for debugging)

Field name

Bits

Access

Reset

Description

LineState0

Contains the current value of LineState(0)

LineState1

Contains the current value of LineState(1)

Reserved

7:2

Reserved

Table 26.

Scratch register

Address: 16h-18h (Read), 16h (Write), 17h (Set), 18h (Clear).

Field name

Bits

Access

Reset

Description

Scratch

7:0

rd/wr/s/c

00b

Empty register byte for testing purposes. The software can read,

write, set, and clear this register and the STULPI01 functionality

will not be affected.

Table 27.

Carkit control register

Address: 19h-1Bh (Read), 19h (Write), 1Ah (Set), 1Bh (Clear).

Field name

Bits

Access

Reset

Description

reserved

rd/wr/s/c

reserved

rd/wr/s/c

TxdEn

rd/wr/s/c

Enables TXD signal in car kit mode

RxdEn

rd/wr/s/c

Enables RXD signal in car kit mode

reserved

rd/wr/s/c

reserved

rd/wr/s/c

reserved

rd/wr/s/c

reserved

rd/wr/s/c

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