Rainbow-electronics W90P710CDG Manual de usuario descargar pdf (Pagina 219)

100

101

W90P710CD/W90P710CDG

Publication Release Date: September 19, 2006

- 219 - Revision B2

Continued.

BITS DESCRIPTIONS

[15:12] EPB_ALT Endpoint B alternative setting (READ ONLY)

[11:8] EPB_INF Endpoint B interface

[7:4] EPB_CFG Endpoint B configuration

[3:0] EPB_NUM Endpoint B number

USB Endpoint B Control Register (EPB_CTL)

EPB_CTL 0xFFF06068 R/W USB endpoint B control register 0x0000_0000

31 30 29 28 27 26 25 24

Reserved

23 22 21 20 19 18 17 16

Reserved

15 14 13 12 11 10 9 8

Reserved

7 6 5 4 3 2 1 0

Reserved EPB_ZERO EPB_STL_CLR EPB_THRE EPB_STL EPB_RDY EPB_RST EPB_EN

BITS DESCRIPTIONS

[31:7] Reserved

[6] EPB_ZERO Send zero length packet back to HOST

[5] EPB_STL_CLR Clear the Endpoint B stall(WRITE ONLY)

[4] EPB_THRE

Endpoint B threshold (only for ISO)

1: once available space in FIFO over 16 bytes, DMA

accesses memory

0: once available space in FIFO over 32 bytes, DMA

accesses memory

[3] EPB_STL Set the Endpoint B stall

1 2 ... 214 215 216 217 218 219 220 221 222 223 224 ... 551 552

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Rainbow-electronics W90P710CDG Manual de usuario Pagina 219

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