User`s guide

MaxLoader User’s Guide
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From the Xilinx 17xx series, the RESET Polarity can be changed only on Xilinx
17xxD/L and 17128. On devices with EPROM portion already programmed or
on new blank devices, RESET polarity is HIGH.
The current status of the Reset pin polarity is determined and displayed on the
screen after Reading the device. The polarity of the Reset pin can ONLY be
changed from HIGH to LOW, but not vice versa. To change the polarity, click
on the Option button and check the Reset bit box before programming your
device. To make certain that the RESET Polarity has been changed, read the
device again. On the other serial EEPROM devices (but NOT Xilinx 17xxD/L
& 17128) the RESET polarity is always HIGH and it cannot be changed to
LOW.
Non-Typical Devices
8-bit 1-Megabits
There are four types of 1 Megabits EPROMS. One set has the A16 and OE lines
swapped. However, this device will still program and verify like normal 1
Megabits. Once this device is placed into the circuit, it will appear as if it has
not been programmed correctly. This is not due to the MaxLoader software or
the programmer, but the difference between these 1 Megabits. When selecting a
1 Megabit, it is important to determine which one you have. Here is a list of 1
Megabits and their equivalents:
27010 (normal pin-out -- program as GENERIC or INTEL 27010):