### Legends

Acronym | Brief Description
--- | ---
CLK | Clock
DG | DataGATE
DGE | DataGATE Enable
GCK0 | Global Clock 0
GCK1 | Global Clock 1
GCK2 | Global Clock 2
GND | Ground
GSR | Global Set/Reset
GTS0 | Global Output Enable 0
GTS1 | Global Output Enable 1
GTS2 | Global Output Enable 2
GTS3 | Global Output Enable 3
HSTL | High speed Tranciever Logic
I/O | Input/Output
INIT | Initial state
ISP | In system programmable
JTAG | Joint Test Action Group
KPR | Unused I/O with weak keeper
NC | No Connects
PGND | Programmable ground pin
PROHIBITED | User reserved pin
R | Reset
S | Set
-S | Schmitt
TCK | Test clock
TDI | Test data input
TDO | Test data output
TIE | Unused I/O floating
TMS | Test mode select
VAUX | JTAG Power Supply Voltage
LVCMOS15 | Low Voltage CMOS 1.5 Volts
LVCMOS18 | Low Voltage CMOS 1.8 Volts
LVCMOS25 | Low Voltage CMOS 2.5 Volts
LVCMOS33 | Low Voltage CMOS 2.5 to 3.3 Volts
LVTTL | Low Voltage TTL 3.3 Volts
SCHMITT15IN | Schmitt Trigger 1.5 Volt input
SSTL | Stub Switched Tranceiver Logic
VCCIO | Input/Output Supply Voltage
VCCIO-1.5 | Power external I/O
VCCIO-1.8 | Power external I/O
VCCIO-2.5 | Power external I/O
VCCIO-3.3 | Power external I/O
VCC | Power internal
VREF-[iostd] | Reference voltage for indicated I/O standard
*VREF-[iostd] | Reference voltage pin selected by software
WPU | Weak Pull Up
WPD | Weak Pull Down