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DS022-4 (v3.0) March 21, 2014
Module 4 of 4
Production Product Specification
1
— OBSOLETE — OBSOLETE — OBSOLETE — OBSOLETE —
Virtex-E Pin Definitions
0
Virtex-E 1.8 V
Field Programmable Gate Arrays
DS022-4 (v3.0) March 21, 2014
00
Production Product Specification
R
Pin Name
Dedicated Pin
Direction
Description
GCK0, GCK1,
GCK2, GCK3
Yes
Input
Clock input pins that connect to Global Clock Buffers.
M0, M1, M2
Yes
Input
Mode pins are used to specify the configuration mode.
CCLK
Yes
Input or
Output
The configuration Clock I/O pin: it is an input for SelectMAP and
slave-serial modes, and output in master-serial mode. After
configuration, it is input only, logic level = Don’t Care.
PROGRAM
Yes
Input
Initiates a configuration sequence when asserted Low.
DONE
Yes
Bidirectional
Indicates that configuration loading is complete, and that the start-up
sequence is in progress. The output can be open drain.
INIT
No
Bidirectional
(Open-drain)
When Low, indicates that the configuration memory is being cleared.
The pin becomes a user I/O after configuration.
BUSY/DOUT
No
Output
In SelectMAP mode, BUSY controls the rate at which configuration
data is loaded. The pin becomes a user I/O after configuration unless
the SelectMAP port is retained.
In bit-serial modes, DOUT provides preamble and configuration data
to downstream devices in a daisy-chain. The pin becomes a user I/O
after configuration.
D0/DIN,
D1, D2,
D3, D4,
D5, D6,
D7
No
Input or
Output
In SelectMAP mode, D0-7 are configuration data pins. These pins
become user I/Os after configuration unless the SelectMAP port is
retained.
In bit-serial modes, DIN is the single data input. This pin becomes a
user I/O after configuration.
WRITE
No
Input
In SelectMAP mode, the active-low Write Enable signal. The pin
becomes a user I/O after configuration unless the SelectMAP port is
retained.
CS
No
Input
In SelectMAP mode, the active-low Chip Select signal. The pin
becomes a user I/O after configuration unless the SelectMAP port is
retained.
TDI, TDO,
TMS, TCK
Yes
Mixed
Boundary-scan Test-Access-Port pins, as defined in IEEE1149.1.
DXN, DXP
Yes
N/A
Temperature-sensing diode pins. (Anode: DXP, cathode: DXN)
VCCINT
Yes
Input
Power-supply pins for the internal core logic.
VCCO
Yes
Input
Power-supply pins for the output drivers (subject to banking rules)
VREF
No
Input
Input threshold voltage pins. Become user I/Os when an external
threshold voltage is not needed (subject to banking rules).
GND
Yes
Input
Ground