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TC9328AF Datasheet(PDF) 13 Page - Toshiba Semiconductor |
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TC9328AF Datasheet(HTML) 13 Page - Toshiba Semiconductor |
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13 / 84 page  TC9328AF 2004-09-13 13 3. ALU ALU is equipped with binary 4-bit parallel add/subtract functions, logical operation, comparison and multiple bit judgment functions. This CPU is not equipped with an accumulator, and all operations are handled directly within the data memory. 4. Program Memory (ROM) The program memory consists of 16 bits × 16384 steps and is used for storing programs. The usable address range consists of 16384 steps between address 0000H and 1FFFH. The program memory divids 16384 into 8 separate steps and consists of page 0 to 7. The JUMP instruction can be freely used throughout all 16384 steps though the Call instruction can use the address from 0000H to 0fffH from page 0 to 3. In case of setting DAL bit, arranged on I/O map, “0” (DAL ADDR3, (r) command), the program memory address 0000H to 03FFH, page 0, are used as data area and setting DAL bit “1” (DAL (DA) command), the program memory address 0000H to 0FFFH (page 0 to 3) are used as data area. The 16-bit content of this can be loaded into the data register by executing the DAL instruction. Note: Set the address for data area of program memory outside of the program loop. *1: DAL bit = DAL access area at setting “0” *2: DAL bit = DAL access area at setting “1” Note: DAL bit is arranged on I/O map. 0000H Page 0 (1 k step) 0400H Page 1 0800H Page 2 0C00H Page 3 1000H Page 4 1400H Page 5 1800H Page 6 1C00H 1FFFH Page 7 0000H JUMP address at initialization 0001H INTR1 0002H INTR2 0003H Serial interface 0004H 8-bit timer ROM 16 bits The vector address at an interruption |
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