FT313HQ-R datasheet(34/67 Pages) ETC2

34 / 67 page

Document No.: FT_000589

FT313H USB2.0 HS Host Controller Datasheet Version 1.2

Clearance No.: FTDI# 318

Bit

Name

Type

Default value

Description

Dedicated charging port. USB host not

functional on this port, VBUS current limit ≤

1.5A.

10: Reserved

11: CDP

Charging downstream port, VBUS

current limit ≤ 1.5A.

Reserved

1’b1

OSC_EN

R/W

1’b1

Oscillator enable

0: Oscillator is not active

1: Oscillator is active

PLL_EN

R/W

1’b1

Internal PLL enable

0: PLL is disable

1: PLL is enable

Reserved

1’b1

HC_CLK_EN

R/W

1’b1

Host controller clock enable

0: clocks are disabled

1: clocks are enabled

VBUS_OFF

R/W

1’b1

VBUS power switch

This bit controls the voltage on the VBUS

on/off (default is “1”) by switch external

power switcher.

0: VBUS on, PSW_N signal is active LOW.

1: VBUS off, PSW_N signal is not active.

PORT_OC_EN

R/W

1’b0

Port overcurrent enable

0: disable over current detection

1: enable over current detection

BCD_EN

R/W

1’b1

BCD module enable

0: disable BCD module

1: enable BCD module

Reserved

1’b0

[3: 2]

BURST_LEN

R/W

2’b00

DMA burst length

00: Single DMA burst

01: 4-cycle DMA burst

10: 8-cycle DMA burst

11: 16-cycle DMA burst

ENABLE_DMA

R/W

1’b0

Enable DMA

0: terminate DMA

FT313HQ-R Datasheet(PDF) 34 Page - List of Unclassifed Manufacturers

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