Datasheet

ULPI registers STULPI01A, STULPI01B
38/44 Doc ID 14817 Rev 4
Note: Address 15h(Read-only) indicates the current value of various signals useful for debugging.
Note: Address 16h-18h(Read), 16h(Write), 17h(Set), 18h(Clear).
Note: Address 19h-1Bh(Read), 19h(Write), 1Ah(Set), 1Bh(Clear).
Table 25. Debug register
Field name Bits Access Reset Description
LineState0 0 rd 0b Contains the current value of LineState(0)
LineState1 1 rd 0b Contains the current value of LineState(1)
Reserved 7:2 rd 0b Reserved
Table 26. Scratch register
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 is not affected.
Table 27. Car kit control register
Field name Bits Access Reset Description
Reserved 0rd/wr/s/c 0b
Reserved 1rd/wr/s/c 0b
TxdEn 2 rd/wr/s/c 0b Enables TXD signal in Car Kit mode
RxdEn 3 rd/wr/s/c 0b Enables RXD signal in Car Kit mode
Reserved 4rd/wr/s/c 0b
Reserved 5rd/wr/s/c 0b
Reserved 6rd/wr/s/c 0b
Reserved 7rd/wr/s/c 0b