XM014429B datasheet(69/83 Pages) XMOS

69 / 83 page

XU6--QF6B Datasheet

USB reset

USB_PHY_CFG2 0xF00A

Bits

Perm

Init

Description

Identier

Reserved

UTMI reset, set to to take UTMI out of reset

USB_PHY_CFG2_UTMI_RESET

USB PHY reset, set to to take the PHY out of reset

USB_PHY_CFG2_PONRST

xFA:

USB reset

USB Shim conguration

USB_SHIM_CFG 0xF00C

This register contains the hardware interfacing the USB PHY and the xCORE. It governs

how the rxActive, rxValid, and line-state signals are mapped onto two one-bit ports.

Bits

Perm

Init

Description

Identier

Reserved

USB ag mode selection:

selects linestate;

selects RxActive and

RxValid

USB_SHIM_CFG_FLAG_MODE

When enabled RxValid output to xCore is AND’d with RxActive

USB_SHIM_CFG_AND_RXV_RXA

xFC:

USB Shim

conguration

USB Phy Status

USB_PHY_STATUS 0xF011

Bits

Perm

Init

Description

Identier

Reserved

if BIST succeeded

USB_PHY_STATUS_BIST_OK

if resistance of IDPAD to ground is >

kOhm (mini B plug)

USB_PHY_STATUS_IDPAD

Set to if no peripheral is connected

USB_PHY_STATUS_HOSTDISCONNECT

The UTMI line state; : SE, : J, : K, : SE

USB_PHY_STATUS_UTMI_LINESTATE

xF:

USB Phy

Status

D.6 Watchdog Cong

WATCHDOG_CFG 0xF020

gering. When used as a watchdog it should be set to both count and trigger a reset on

reaching . It can be set to just count for debugging purposes

XM014429B Datasheet(PDF) 69 Page - Xmos Ltd.

XM014429B Datasheet(HTML) 69 Page - Xmos Ltd.

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