FT121Q-R datasheet(32/46 Pages) FTDI

Part #	FT121Q-R

Description	Enhanced USB Device Controller with SPI Slave IC

PDF	46 Pages

Scroll/Zoom	100%

Manufacturer	FTDI [Future Technology Devices International Ltd.]

Direct Link	http://www.ftdichip.com

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32 / 46 page

Document No.: FT_000648

FT121 ENHANCED USB DEVICE CONTROLLER WITH SPI SLAVE IC

Datasheet Version 1.2

Clearance No.: FTDI#

312

6.4.4 Read Vendor ID

Command

: EBh (for Enhanced Mode)

Data

: read 2 bytes

Read the 2 bytes Vendor ID. Shall return 0403h.

6.4.5 Read Product ID

Command

: EAh (for Enhanced Mode)

Data

: read 2 bytes

Read the 2 bytes Product ID. Shall return 6018h.

6.4.6 Read FTDI ID

Command

: EDh (for Enhanced Mode)

Data

: read 1 byte

Read the 1 byte FTDI ID. Shall return 11h.

6.4.7 Set IO Pad Drive Strength

Command

: E9h

Data

: Write 1 byte

Bit

Symbol

Reset

Description

1-0

Reserved

0b’00

Reserved, write to 0b’00

3-2

MISO, MOSI pins

0b’00

00: 4mA

01: 8mA

10: 12mA

11:16mA

5-4

INT_n, SUSPEND pins

0b’00

00: 4mA

01: 8mA

10: 12mA

11:16mA

7-6

Reserved

0b’00

Reserved, write to 0b’00

Table 6.20 IO Pad Drive Strength Register

FT121Q-R Datasheet(PDF) 32 Page - Future Technology Devices International Ltd.

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