MFC-8220
SERVICE MANUAL
3-3
1.3 Main PCB
For the entire circuit diagram of the main PCB, see APPENDIX 4.1 to 4.6 ‘MAIN PCB CIRCUIT
DIAGRAM’ in this manual.
1.3.1 CPU
A Fujitsu 32bit RISC CPU, SPARClite is built in the ASIC. While the CPU is driven with a clock
frequency of 66.66 MHz in the user logic block, it itself runs at 133.33 MHz, which is generated
by multiplying the source clock by two.
Fig. 3-3
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