Disk On Chip; Flash Chip; Figure 10-11: M100E Cpu Board - Teledyne 100E Instruction Manual

Theory Of Operation Model 100E Instruction Manual
RS-485
(COM1 & COM2)
RS-232
COM2 COM1

Figure 10-11: M100E CPU Board

The CPU includes two types of non-volatile data storage, one disk-on-chip and one or two
flash chips.

10.4.1.1. Disk On Chip

While technically an EEPROM, the disk-on-chip (DOC) appears to the CPU as, behaves as,
and performs the same function in the system as an 8 mb disk drive. It is used to store
the computer's operating system, the T-API firmware, and most of the operational data
generated by the analyzer's internal data acquisition system (iDAS - Sections 10.7.4 and
6.10).

10.4.1.2. Flash Chip

This non-volatile memory includes 64 kb of space. The M100E CPU board can
accommodate up to two EEPROM flash chips. The M100E standard configuration is one
chip with 64 kb of storage capacity, which is used to store a backup of the analyzer
configuration as created during final checkout at the factory. Separating these data onto
178 045150102 Rev XB1