3.0 Naming Convention¶

3.1 Cell Naming Convention¶

Digital I/O Cell

	Symbol	Description
Cell Type	GF	GF pad cell
I/O Type	_in	Input
I/O Type	_bi	Bidirectional
Output Type	_xt	Tristate with drive strength of x mA

Analogue Signal Cell

Support Cell

	Symbol	Description
Cell Type	GF	GF pad cell
Power	_dvdd	DVDD power cell
	_dvss	DVSS ground cell
Corner	_cor	Corner cell
Filler	_fillx	Filler cell with width = x μm
Filler	_fillnc	Filler cell for gap width less than 1μm
Breaker	_brkx	Breaker cell with width = x μm

Digital I/O Cell

PIN	Function
DVDD	5V supply for output drivers
VDD	5V supply for pre-drive in I/O pads
DVSS	Ground for output drivers
VSS	Ground for pre-drive in I/O pads
IE	Input enable
PD	Pull-down enable
PU	Pull-up enable
Y	Data output to core
PAD	Data input from/output to bond pad
OE	Output enable
A	Data input from core
CS	CMOS/Schmitt trigger input select
SL	Fast/Slow slew rate select
PDRV0	Output drive strength selector
PDRV1	Output drive strength selector

Analogue Signal Cell

PIN	Function
ASIG5V	5V analogue signal input from/output to core
PAD	Data input from/output to bond pad