STW4810 datasheet(43/78 Pages) STMICROELECTRONICS

43 / 78 page

STw4810

Functional description

43/78

The transceiver receives USB data in the following conditions:

uart_en = 0 (USB control register 1); oe_int_en = 1

UART mode

UART mode is entered by setting the ‘uart_en’ bit to 1 (USB control register 1 -

Table 11).

The transceiver contains two digital logic level translators between the following balls:

●

TXD signal: from USBVM to DN

●

RXD signal: from DP to USBVP

When not in UART mode the level translators are disabled.

Table 33.

Data receiver via USB control register 1

USB mode (dat_se0)

Suspend

Inputs

Outputs

USBVP

USBVM

USBRCV

1 (DAT_SE0 mode)

Diff rcv 1

not used

1 (DAT_SE0 mode)

not used

1 (DAT_SE0 mode)

not used

1 (DAT_SE0 mode)

Diff rcv 1

not used

1 (DAT_SE0 mode)

not used

1 (DAT_SE0 mode)

not used

1 (DAT_SE0 mode)

not used

1 (DAT_SE0 mode)

not used

0 (VP_VM mode)

diff rcv 1

0 (VP_VM mode)

diff rcv 1

0 (VP_VM mode)

not used

0 (VP_VM mode)

not used

0 (VP_VM mode)

not used

0 (VP_VM mode)

not used

STW4810 Datasheet(PDF) 43 Page - STMicroelectronics

STW4810 Datasheet(HTML) 43 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78

Datasheet Download

Link URL