Toshiba TOPAS900 user manual

Models: TOPAS900

1 45
Download 45 pages 26.38 Kb
Page 15
Image 15

Users Manual TOPAS900 Flash V2.1

and Debugging Board, the jumper can be left open – the line is controlled by the firmware controller.

If the Flash Carrier Board works stand-alone (without Programming-and-Debugging Board), the jumper must be set when external flash software should be executed. If the jumper is left open, the /EA pin is pulled up by a 10k pull-up resistor and the Flash MCU boots from internal flash memory. When the MCU is reset with /EA at high level, the external memory can be accessed additionally. The entire ROM size would be 768 kb and 128 kb of RAM. When the MCU is reset with /EA at low level, the internal flash ROM cannot be accessed additionally.

HWU Elektronik Oberhausen

Page 15

Page 15
Image 15
Toshiba TOPAS900 user manual