Copyright © 2014 Future Technology Devices International Limited

46

Document No.: FT_000647

FT122 ENHANCED USB DEVICE CONTROLLER WITH PARALLEL

BUS

Clearance No.: FTDI#

313

Table 6-9 Endpoint Configuration Register ..................................................................................... 22

Table 6-10 Interrupt Register Byte 1 ............................................................................................. 23

Table 6-11 Interrupt Register Byte 2 ............................................................................................. 23

Table 6-12 Interrupt Register Byte 3 (for Enhanced Mode)............................................................... 24

Table 6-13 Interrupt Register Byte 4 (for Enhanced Mode)............................................................... 24

Table 6-14 Endpoint Status Register ............................................................................................. 25

Table 6-15 Endpoint Last Transaction Status Register ..................................................................... 25

Table 6-16 Transaction error code ................................................................................................ 26

Table 6-17 Endpoint Buffer Status Register .................................................................................... 27

Table 6-18 Endpoint Control Register ............................................................................................ 28

Table 6-19 Frame Number LSB Register ........................................................................................ 29

Table 6-20 Frame Number MSB Register........................................................................................ 29

Table 6-21 IO Pad Drive Strength Register..................................................................................... 31

Table 8-1 Absolute Maximum Ratings............................................................................................ 33

Table 8-2 Operating Voltage and Current ....................................................................................... 34

Table 8-3 digital I/O Pin Characteristics (VCCIO=+3.3V) ................................................................. 34

Table 8-4 digital I/O Pin Characteristics (VCCIO=+2.5V) ................................................................. 34

Table 8-5 digital I/O Pin Characteristics (VCCIO=+1.8V) ................................................................. 35

Table 8-6 USB I/O Pin (DP, USBDM) Characteristics ........................................................................ 35

Table 8-7 Parallel Interface IO timing ............................................................................................ 36

Table 8-8 DMA timing characteristics............................................................................................. 38

Table 9-1 Reflow Profile Parameter Values ..................................................................................... 43