Toshiba user manual Glance at the TOPAS900 Flash Board, Sub

Users Manual TOPAS900 Flash V2.1

2.3.A Glance at the TOPAS900 Flash Board

After removing the plastic cover from the PCB you should see the following (for the picture below the cable connection between the Programming-and Debugging Board and the Flash Carrier Board has been removed to avoid covering components, this cable must be plugged in by default):

RS232-Connector

D-SUB 9

Firmware-Processor

TMP87P808

RESET and NMI	EA (external access)
Switches	Jumper

Scratch on PCB

to break off

Flash MCU

TMP95FY64F

Power	Status LED	Jumper for Carrier
Connector		Board Vcc

Figure 1 : The TOPAS900 Flash Board (Top View)

Programming Board <=> Carrier Board Connectors

Chip Select Jumpers

As shown in the picture above the TOPAS900 Flash PCB can be divided into two functional groups: On the left side the “Programming- and Debugging- Board” is located. On the right there is the “Flash Carrier Board”, surrounded by four 26-pin connectors (not soldered). The PCB is delivered in one piece.

The Flash Carrier Board can also be used independently from the Programming and Debugging Board. For independent usage it must be separated from the main board by breaking it off.

To break the Flash Carrier Board off please use this technique: Remove the connection cable between the two parts when plugged in. Put the TOPAS900 Flash board on a flat and stable surface. Keep the scratch between “Programming-and-Debugging Part” and

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