R
XC17V00 Series Configuration PROM
Standby Mode
Programming
The PROM enters a low-power standby mode whenever
CE is asserted High. The output remains in a high imped-
ance state regardless of the state of the OE input.
The devices can be programmed on programmers supplied
by Xilinx or qualified third-party vendors. The user must
ensure that the appropriate programming algorithm and the
latest version of the programmer software are used. The
wrong choice can permanently damage the device.
Table 1: Truth Table for XC17V00 Control Inputs
Control Inputs
Outputs
RESET
CE
Internal Address
DATA
CEO
I
CC
(1)
Inactive
Low
If address < TC : increment
Active
High-Z
High
Low
Active
Reduced
(1)
If address > TC : don’t change
Active
Inactive
Active
Low
High
High
Held reset
Not changing
Held reset
High-Z
High-Z
High-Z
High
High
High
Active
Standby
Standby
Notes:
1. The XC17V00 RESET input has programmable polarity
1. TC = Terminal Count = highest address value. TC + 1 = address 0.
DS073 (v1.0) July 26, 2000
Advance Product Specification
www.xilinx.com
1-800-255-7778
7
XILINX [ XILINX, INC ]
