FT121T-R FTDI, FT121T-R Datasheet - Page 18

• Manufacturer Part Number: FT121T-R
• Description: USB Interface IC USB CONTROLLER W/SPI SLAVE IC
• Manufacturer: FTDI

Specifications of FT121T-R

• Rohs: yes
• Product: USB 2.0
• Interface Type: SPI, USB
• Operating Supply Voltage: 4 V to 5.5 V
• Operating Supply Current: 3.9 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-16
• Minimum Operating Temperature: - 40 C

Command Name
Read Interrupt Register
Select Endpoint
Read Last Transaction Status
Copyright © 2012 Future Technology Devices International Limited
FT121 ENHANCED USB DEVICE CONTROLLER WITH SPI SLAVE IC
Target
Endpoint 3 OUT
Endpoint 3 IN
Endpoint 4 OUT
Endpoint 4 IN
Endpoint 5 OUT
Endpoint 5 IN
Endpoint 6 OUT
Endpoint 6 IN
Endpoint 7 OUT
Endpoint 7 IN
Device
Endpoint 0 OUT
Endpoint 0 IN
Endpoint 1 OUT
Endpoint 1 IN
Endpoint 2 OUT
Endpoint 2 IN
Endpoint 3 OUT
Endpoint 3 IN
Endpoint 4 OUT
Endpoint 4 IN
Endpoint 5 OUT
Endpoint 5 IN
Endpoint 6 OUT
Endpoint 6 IN
Endpoint 7 OUT
Endpoint 7 IN
Endpoint 0 OUT
Data Flow Commands
Code (hex)
BDh
B6h
B7h
B8h
B9h
BAh
BBh
BCh
BEh
0Ah
0Bh
0Ch
0Dh
BFh
F4h
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Eh
0Fh
40h
Document No.: FT_000648
Clearance No.: FTDI#
Data phase
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Write 1 byte
Read 1 to 4 bytes
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte (optional)
Read 1 byte
Datasheet Version 1.0
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