FT121T-R FTDI, FT121T-R Datasheet - Page 21

• 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

Table 6-2 enhanced command set
6.2
6.2.1 Set Address Enable
Command
Data
Table 6-3 Address Enable Register
6.2.2 Set Endpoint Enable
Command
Data
Table 6-4 Endpoint Enable Register
6.2.3 Set Mode
Command
Data
Command Name
Read Vendor ID
Read Product ID
Read FTDI ID
6-0
7-1
1-0
Bit
Bit
Bit
7
0
Initialization Commands
Address
Enable
EP_Enable
Reserved
Reserved
: D0h
: Write 1 byte
: D8h
: Write 1 byte
: F3h
: Write 2 bytes
Symbol
Symbol
Symbol
Copyright © 2012 Future Technology Devices International Limited
FT121 ENHANCED USB DEVICE CONTROLLER WITH SPI SLAVE IC
0b’0000000 USB assigned device address. A bus reset will reset all
0b’0000000 Reserved, write to 0
Reset
Reset
Reset
0b’00
Target
Device
Device
Device
0
0
address bits to 0.
Function enable. A bus reset will automatically enable the
function at default address 0.
Enable all endpoints (Note EP0 is always enabled
regardless the setting of EP_Enable bit). Endpoints can
only be enabled when the function is enabled.
Reserved, write to 0
Code (hex)
EBh
EAh
EDh
Description
Description
Description
Document No.: FT_000648
Clearance No.: FTDI#
Data phase
Read 2 bytes
Read 2 bytes
Read 1 byte
Datasheet Version 1.0
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