User guide

The various card types
You can use the following memory cards as standard BEETLE Cards:
SRAM card Readable and writeable
MASK ROM card Readable
OTPROM card Readable
FLASH EPROM card Deletable, writeable, readable)
The following briefly describes the characteristics of the useable cards.
SRAM Card
This card type can be read and written to by the system any number of
times. You can write protect the SRAM card to prevent accidental
overwriting of the stored data.
An integral battery is used for the retention of data. The length of time
data is retained depends on the life of the battery, which in turn
depends on the storage capacity of the card used.
MASK ROM Card
The data contents of this card are determined by the manufacturer of
its memory chips and cannot be subsequently modified.
OTPROM Card
Data can be written to this card once and can then no longer be
modified. The card is written to in special memory disk drives only.
BEETLE Card BEETLE components
GB - 30