FT120T-R datasheet(20/40 Pages) FTDI

部件名	FT120T-R

功能描述	USB Device Controller with Parallel Bus IC

PDF	40 Pages

Scroll/Zoom	100%

制造商	FTDI [Future Technology Devices International Ltd.]

网页	http://www.ftdichip.com

标志

20 / 40 page

Document No.: FT_000646

FT120 USB DEVICE CONTROLLER WITH PARALLEL BUS IC

Datasheet Version 1.2

Clearance No.: FTDI#

291

Error Code

Result

0011

Unexpected packet

0100

Token CRC error

0101

Data CRC error

0110

Time out error

0111

Reserved

1000

Unexpected EOP

1001

Packet NAKed

1010

Sent stall

1011

Buffer overflow

1101

Bit stuff error

1111

Wrong DATA PID

Table 6-11 Transaction error code

6.3.4 Read Endpoint Status

Command

: 80-85h (8ih where ‘i’ is the endpoint index (EPI) as defined in Table 5-1 and

Table 5-2)

Data

: Read 1 byte

Bit

Symbol

Reset

Description

1-0

Reserved

0b’00

Reserved

Setup packet

0: indicate not a setup packet

1: indicate last received packet has a SETUP token

4-3

Reserved

0b’xx

Reserved

Buffer 0 Full

0: ping buffer is not filled up

1: ping buffer is filled up

Buffer 1 Full

0: pong buffer is not filled up

1: pong buffer is filled up

Note: this bit only applicable to EP2 which supports ping-

pong buffer

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