The Conexant Single-Chip FaxEngine product family consists of the Single-ChipFaxEngine (CXD9450) that contains an embedded modem Digital Signal Processor(DSP), and a separate Integrated Analog (IA) device (20415).This device set, along with the supporting firmware and evaluation system,comprises a complete facsimile machine—needing only power supply, scanner, andprinter mechanism components to complete the machine.
Feature
Microprocessor and
Bus Interface
MC24 Central Processing Unit
Up to 10 MHz CPU clock speed
Memory efficient input/output bit
manipulation
24-bit internal address bus,
8-bit data bus
External Bus
Address, data, control, status,
and decoded chip select signals
support connection to external
ROM, SRAM, DRAM and
operator panel
24-bit external address bus
8-bit data bus
Chip selects
ROMCSn for ROM support
CS0n for SRAM
CS1n-CS5n for external I/O
FCSn for FLASH memory
support
LCDCS for LCD support
DRAM Controller
DRAM is refreshed in Sleep and
Stand-by modes
Up to 8 MB supported in two
blocks
Organizations supported:
4 or 8-bit
Single and page mode access
support
Flash memory support
NAND and NOR-type support
Serial NAND support
NOR-type memory up to 2 MB
DMA Controller
Six dedicated internal DMA
channels for scanner, thermal
printer, and T.4/T.6 access of
internal and/or external
memory.
