Specifications

7.2 Flash EPROM
The VP 110/01x has two Flash EPROM parts: the first is installed in a socket and is programmed
at the factory with PC BIOS firmware. This EPROM will not normally be reprogrammed by the
user, but Concurrent Technologies has programming software which allows BIOS updates to be
carried out in the field when necessary, perhaps to add new features. Contact Concurrent
Technologies for a copy of this software, and for the BIOS reprogramming information, if you
believe that such an update is required.
The second Flash EPROM part is soldered to the board and is used at the factory for test
purposes. It is currently reserved for future use by Concurrent Technologies.
The BIOS and Test Firmware EPROMs are co-resident, that is they occupy the same CPU
address range. A special-purpose control bit is used to select which of the EPROMs is
addressed at any given time. The state of this bit is controlled by the VSA Mode switch (see
Section 9.1) and can be read from a bit in Status & Control Register 2 (see Section 8.2).
Memory
VP 110/01x 7-3