QL5232 - QuickPCITM
Pin Type Descriptions
Pin Type Descriptions
The QL5232 Device Pins are indicated in the table below. These are pins on the device, some of which connect
to the PCI bus, and others that are programmable as user IO.
Type
IN
OUT
T/S
S/T/S
O/D
Description
Input. A standard input-only
signal
Totem pole output. A standard
active output driver
Tri-state. A bi-directional, tri-state
input/output pin
Sustained Tri-state. An active low
tri-state signal driven by one PCI
agent at a time. It must be driven
high for at least one clock before
being disabled (set to Hi-Z). A
pull-up needs to be provided by
the PCI system central resource to
sustain the inactive state once the
active driver has released the
signal.
Open Drain. Allows multiple
devices to share this pin as a
wired-or.
Pin/Bus
Name
VCC
VCCIO
GND
I/O
GLCK/I
ACLK/I
RSVRD
TDI/RSI*
TDO/
RCO*
TCK
TMS
TRSTB/
RRO*
STM
Type
Function
IN
IN
IN
T/S
IN
IN
IN
IN
OUT
IN
IN
IN
IN
Supply pin. Tie to 3.3V supply.
Supply pin for I/O. Set to 3.3V
for 3.3V I/O, 5V for 5.0V com-
pliant I/O
Ground pin. Tie to GND on the
PCB.
Programmable Input/Output/Tri-
State/Bi-directional Pin.
Programmable Global Network or
Input-only pin. Tie to VCC or
GND if unused.
Programmable Array Network or
Input-only pin. Tie to VCC or
GND if unused.
Reserved by QuickLogic for future
PCB.
JTAG Data In/RAM Init. Serial
Data In. Tie to VCC if unused.
Connect to Serial EPROM data
for RAM init.
JTAG Data Out/RAM Init Clock.
Leave unconnected if unused.
Connect to Serial EPROM clock
for RAM init.
JTAG Clock. Tie to GND if
unused.
JTAG Test Mode Select. Tie to
VCC if unused.
JTAG Reset/RAM Init. Reset Out.
Tie to GND if unused. Connect to
Serial EPROM reset for RAM init.
QuickLogic Reserved pin. Tie to
GND on the PCB.
* See QuickNote 65 on the QuickLogic web site for
information on RAM initialization.
9
Rev B