MFC2000 View Datasheet(PDF) - Conexant Systems
Part Name
Description
MFG CO.
'MFC2000' PDF : 426 Pages View PDF
Multifunctional Peripheral Controller 2000
2. MFC2000 Summary
MFC2000
2.1 MFC2000 Device Family
The MFC2000 contains an internal 32-bit RISC Processor with 64-MB address space, the Countach Imaging DSP
(Conexant’s DSP) subsystem including embedded data and program memory, and dedicated circuitry optimized
for color scanning, color faxing, color copying, color printing, and multifunctional control and monitoring. The
device family with relevant features is described in Table 2-1.
Device No.
CX0720X-11
CX0720X-12
CX0720X -13
CX0720X -14
CX0720X-15
Table 2-1. MFC2000 Device Family
Product Code
BFH
BDH
BBH
B9H
B8H
Data Modem
Function
Yes
Yes
No
No
No
Voice Codec/Speaker
Phone Functions
Yes
No
Yes
No
No
Smart DAA Support
Yes
Yes
Yes
Yes
No
2.2 MFC2000 System Block Diagram
The MFC2000 contains the ARM7TDMI RISC Processor (described separately in ARM7TDMI Manuals),
Countach Imaging DSP, Modem DSP, and specialized hardware needed for the Multifunctional machine control
and scanner and fax signal processing. The Countach Imaging DSP subsystem is on a separate data bus.
Therefore, the ARM system data bus can operate in parallel with the Countach Imaging DSP subsystem data bus
for most operations except the interaction time between two buses. The two-bus architecture is very important to
provide enough bandwidth for full color MFP products. Figure 2-1 shows the MFP2000’s two-bus architecture.
The ARM Bus System (ABS) has two mastersARM CPU and DMA Controller. They provide accesses to all
specialized hardware functions including the Countach Imaging DSP subsystem as a peripheral on the ARM Bus
System. ABS has several sections. The System Interface Unit (SIU) is the control center. The ARM CPU and
Cache Controller are on the Internal System Bus (ISB). The Cache Memory is on the Internal Cache Bus (ICB).
The DMA Controller is on the DMA Bus (DAB). All internal peripherals are on the Internal Peripheral Bus (IPB).
The SmartDAA/IA Interface and P80 core are on the IPB of the ARM Bus System. The ARM7TDMI runs at a
clock rate 40 MHz, 37.5 MHz, or 30 MHz. All external peripherals are on the ARM External Bus (AEB). There is a
separate bus system for the Countach Imaging DSP subsystem called Countach Bus System (CBS). There are
three sections, the Video/Scan Interface, the ARM Bus Interface, and the countach subsystem interface. The
external SDRAM/DRAM is on the Countach External Bus (CEB).
100723A
Conexant
2-1
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