AR# 1100: XC4000E: What is state of RAMs upon power-up/configuration?
XC4000E: What is state of RAMs upon power-up/configuration?
RAMs (as well as ROMs) are initialized at power-up of the device in the xc4000E devices.
By default, all RAM/ROM contents are initialized to all zeros. The initialization values may be defined by the user by attaching an INIT attribute to the RAM (or ROM) symbol: INIT=value where value is the hexidecimal initialization value.
Note that RAM initialization occurs only during configuration. RAM content is not affected by the Global Set/Reset.