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M38B57MC Fiches technique(PDF) 36 Page - Mitsubishi Electric Semiconductor |
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M38B57MC Fiches technique(HTML) 36 Page - Mitsubishi Electric Semiconductor |
36 / 69 page MITSUBISHI MICROCOMPUTERS 38B5 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER 36 PRELIMINAR Y Notice: This is not a final specification. Some parametric limits are subject to change. FLD Controller The 38B5 group has fluorescent display (FLD) drive and control cir- cuits. The FLD controller consists of the following components: •40 pins for FLD control pins •FLDC mode register •FLD data pointer •FLD data pointer reload register •Tdisp time set register •Toff1 time set register •Toff2 time set register •Port P0FLD/port switch register •Port P2FLD/port switch register •Port P8FLD/port switch register •Port P8 FLD output control register •FLD automatic display RAM (max. 160 bytes) A gradation display mode can be used for bright/dark display as a display function. Fig. 39 Block Diagram for FLD Control Circuit P20/FLD0 P21/FLD1 P22/FLD2 P23/FLD3 P24/FLD4 P25/FLD5 P26/FLD6 P27/FLD7 FLD/P FLD/P FLD/P FLD/P FLD/P FLD/P FLD/P FLD/P 000416 0EFA16 8 000016 0EF916 8 P00/FLD8 P01/FLD9 P02/FLD10 P03/FLD11 P04/FLD12 P05/FLD13 P06/FLD14 P07/FLD15 FLD/P FLD/P FLD/P FLD/P FLD/P FLD/P FLD/P FLD/P 000216 8 P10/FLD16 P11/FLD17 P12/FLD18 P13/FLD19 P14/FLD20 P15/FLD21 P16/FLD22 P17/FLD23 000616 8 P30/FLD24 P31/FLD25 P32/FLD26 P33/FLD27 P34/FLD28 P35/FLD29 P36/FLD30 P37/FLD31 001016 0EFB16 8 P80/FLD32 P81/FLD33 P82/FLD34 P83/FLD35 P84/FLD36 P85/FLD37 P86/FLD38 P87/FLD39 FLD/P FLD/P FLD/P FLD/P FLD/P FLD/P FLD/P FLD/P 0F6016 0FFF16 Main address bus Local address bus Main data bus Local data bus FLD blanking interrupt FLD digit interrupt FLDC mode register (0EF416) FLD data pointer reload register (0EF816) FLD data pointer (0EF816) Timing generator Address decoder |
Numéro de pièce similaire - M38B57MC |
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Description similaire - M38B57MC |
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