User guide

Hardware

890 USE 108 00 August 2001 39

EEPROM Auxiliary Memory Capability (A984-1xx/E984-24x/251/255 Only)

Auxiliary

Memory Socket

The A984-1xx, E984-24x/251/255 Controllers contain an auxiliary memory socket

for a credit card-sized EEPROM card on which system configuration and user logic

can be saved. System configuration and user logic data can be written to an

EEPROM card and used to back up the program stored in battery-backed RAM.

This is the socket location.

An AS-MEEP-000 EEPROM card provides 32K bytes of auxiliary memory, and an

AS-MEEP-001 EEPROM card provides 8K bytes of auxiliary memory. (The 8K

EEPROM card can be used to store programs that use under 4K words of user

memory.) The card should be inserted into the socket with its label side facing the

communication ports and with the arrow on the label pointing toward the socket.

White MEEP card pull-tabs ship with the MEEP cards for better card extraction.

Note: A 32K MEEP card must be used if you are using either the PC-E984-251 or

PC-E984-255.

Adhesive

Pull-Tab