FT902L-R datasheet(53/67 Pages) BRIDGETEK

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FT900

/1/2/3 Revision C Embedded Microcontroller Datasheet

Version 1.0

Document No. BRT_000172 Clearance No.: BRT#087

Figure 6-5 - GPIO I/O ports connection

6.4

USB 2.0 Device and Host Interface

The example diagram in Figure 6-6 shows the FT900/1/2/3 series supporting one USB 2.0 host port and

one USB 2.0 device port, which makes FT900/1/2/3 system data transfer easier via a USB adapter.

USB2.0 Device

Port

VBUS_DTC/GPIO3 (60)

VBUS

D_DM (69)

D_DP (70)

GND

DRREF (71)

USB2.0 Host Port

FT900

USB

(59) PSW_N/GPIO2

VBUS

H_DM (72)

H_DP (73)

GND

HRREF (75)

(58) OC_N/GPIO1

(57) VBUS_DISCHG/

GPIO0

VBUS

VCC3V3

VBUS

Figure 6-6 - USB 2.0 ports connection

Slew rate bit

Enable output driver

Data output

Output driver capability

Data input

Schmitt trigger

Keeper

Keeper enable bit

Pull-down enable bit

Pull-up enable bit

Rpu

Rpd

ESD

VDDIO

FT900 I/O

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