GHWCFG4

R

NUMDEVPERIOEPS

Number of Device Mode Periodic IN Endpoints (NumDevPerioEps)

Range: 0-15

R

PARTIALPWRDN

Enable Partial Power Down (PartialPwrDn)

- 1'b0: Partial Power Down Not Enabled

R

AHBFREQ

Minimum AHB Frequency Less Than 60 MHz (AhbFreq)

- 1'b0: No

R

HIBERNATION

Enable Hibernation (Hibernation)

- 1'b0: Hibernation feature not enabled

R

EXTENDEDHIBERNATION

Enable Hibernation

- 1'b0: Extended Hibernation feature not enabled

R

ENHANCEDLPMSUPT1

Enhanced LPM Support1 (EnhancedLPMSupt1)

- This bit indicates that the controller supports L1 entry based on FIFO status. - Accept L1 Request even if Bulk/Interrupt TxFIFO is not empty.

R

SERVINTFLOW

Service Interval Flow

This bit indicates that the controller supports Service-Interval based scheduling flow for ISOC IN EPs.

R

IPGISOCSUPT

Interpacket Gap ISOC OUT Worst-case Support (ipgisocSupt)

This bit indicates that the controller supports the worst-case scenario of Rx followed by Rx Inter Packet Gap (IPG) (32-bit times) as per the UTMI Specification for any token following an ISOC OUT token. Without this support, when any token follows an ISOC OUT token with the worst-case IPG, the controller does not detect the followed token. The worst-case IPG of the controller without this support depends on the AHB and PHY clock frequency.By default IPG Support is enabled.

R

ACGSUPT

Active Clock Gating Support

This bit indicates that the controller supports the Dynamic (Switching) Power Reduction during periods when there is no USB and AHB Traffic.

R

ENHANCEDLPMSUPT

Enhanced LPM Support (EnhancedLPMSupt)

This bit indicates that the controller supports the following behavior: L1 Entry Behavior based on FIFO Status - TX FIFO - Accept L1 Request even if ISOC IN TX FIFO is not empty. - Reject L1 Request if Non-Periodic TX FIFO is not empty. - Ensure application can flush the TX FIFO while the Controller is in L1. - RX FIFO - Accept L1 Request even if RX FIFO (common to Periodic and Non-Periodic) is not empty. - Accept L1 Request but delay SLEEPM assertion until RX SINK Buffer is empty. Prevent L1 Entry if a Control Transfer is in progress on any Control Endpoint. Ability to Flush TxFIFO even if PHY Clock is gated.

R

PHYDATAWIDTH

UTMI+ PHY/ULPI-to-Internal UTMI+ Wrapper Data Width

(PhyDataWidth)<vr>When a ULPI PHY is used, an internal wrapper converts ULPI to UTMI+.

R

NUMCTLEPS

Number of Device Mode Control Endpoints in Addition to

Endpoint 0 (NumCtlEps) Range: 0-15

R

IDDGFLTR

IDDIG Filter Enable (IddgFltr)

- 1'b0: No filter

R

VBUSVALIDFLTR

VBUS Valid Filter Enabled (VBusValidFltr)

- 1'b0: No filter

R

AVALIDFLTR

a_valid Filter Enabled (AValidFltr)

- 1'b0: No filter

R

BVALIDFLTR

b_valid Filter Enabled (BValidFltr)

- 1'b0: No filter

R

SESSENDFLTR

session_end Filter Enabled (SessEndFltr)

- 1'b0: No filter

R

DEDFIFOMODE

Enable Dedicated Transmit FIFO for device IN Endpoints

(DedFifoMode)

R

INEPS

Number of Device Mode IN Endpoints Including Control Endpoints (INEps)

- 0: 1 IN Endpoint - 1: 2 IN Endpoints .... - 15: 16 IN Endpoints

R

DESCDMAENABLED

Scatter/Gather DMA configuration

- 1'b0: Non-Scatter/Gather DMA configuration

R

DESCDMA

Scatter/Gather DMA configuration

- 1'b0: Non Dynamic configuration Note: This field is configured using the OTG_EN_DESC_DMA parameter.