General Procedures / Information
6-46 12/04 FaxCentre F110
Digicolor2 Microprocessor
Internal Core for digicolor2 is a RISC ARM 946E.
Features:
• 32 bits internal architecture
• 2 external data bus
• Memory bus 16 bits data, 24 bits address max.
• Flash code 8 bits (8Mb max).
• Sdram 8 bits (256Mb max.) / 16 bits (512Mb max.)
• Peripheral bus 8 bits data / 24 bits address (16Mb max. by nCS), or 16 bits data / 15bits
address bus (64Kb max. par nCS, A0 = 0 ). bus width (8 bits / 16 bits) programmable for each
chip select. DIGICOLOR2 provide 4 chip select for peripheral bus.
• Power supply 2.7 - 3.3V
• Frequency: internal frequency 92Mhz.
• Access cycle are programmable for each Chip Select
• No external ready signal management.
System controller
System control is handled by DIGICOLOR2
DIGICOLOR2 manages the following functions:
• Decoding of SDRAM memory space and interface for SDRAM memory.
• Decoding of Flash code memory space.
• Decoding of peripheral bus memory space
During the boot sequence, the compressed code stored into the Flash memory is copied and ex-
panded into the SDRAM to be executed.
Timers
4 timers 32 bits for general use are available into the Digicolor2. Timers are derived from the main
clock digicolor2.
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