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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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EM73880 Fiches technique(PDF) 11 Page - ELAN Microelectronics Corp |
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EM73880 Fiches technique(HTML) 11 Page - ELAN Microelectronics Corp |
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11 / 40 page  11 * This specification are subject to be changed without notice. EM73880 EM73880 EM73880 EM73880 EM73880 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT 11.30.2001 Preliminary Preliminary Preliminary Preliminary Preliminary ACC CF MSB LSB 3 2 1 0 H REGISTER 3 2 1 0 L REGISTER ACC CF MSB LSB (3) Rotation: There are two kinds of rotation operation, one is rotation left, the other is rotation right. RLCA instruction rotates Acc value to left, shift the CF value into the LSB bit of Acc and the shift out data will be hold in CF. RRCA instruction operation rotates Acc value to right, shift the CF value into the MSB bit of Acc and the shift out data will be hold in CF. PROGRAM EXAMPLE: To rotate Acc right and shift a "1" into the MSB bit of Acc . TTCFS; CF ← 1 RRCA; rotate Acc right and shift CF=1 into MSB. HL REGISTER HL REGISTER HL REGISTER HL REGISTER HL REGISTER HL register are two 4-bit registers, they are used as a pair of pointer for the address of RAM memory and also 2 independent temporary 4-bit data registers. For some instruction, L register can be a pointer to indicate the pin number ( Port4 ) . HL REGISTER STRUCTURE HL REGISTER STRUCTURE HL REGISTER STRUCTURE HL REGISTER STRUCTURE HL REGISTER STRUCTURE |
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