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SD6830 Datasheet(PDF) 6 Page - AUK corp |
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SD6830 Datasheet(HTML) 6 Page - AUK corp |
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6 / 34 page ![]() KSI-W002-000 6 6. Basic Function Block 6.1 Program Counter (PC) Program counter is used to indicate the address of the next instruction to be executed. The 10-bit program counter consists of two registers, PC H(4-bit) and PCL(6-bit). This is a polynomial counter. 6.2 Program Memory (ROM) Program memory is used to store user-specified program. This consists of a 1024 x 8-bit. It is organized in 16 pages and each page is 64 bytes long. For page-in addressing, all instructions excluding JMPL and CALL can be executed by page. In order to execute jump or call in page, JMP or CAL is suitable. For page-to-page addressing, JMPL or CALL must be used. Figure 6-1. Program Memory Map SD6830 3 60 61 62 63 PAGE 15 0 1 2 PAGE 0 0 1 2 3 60 61 62 63 RESET ADDRESS 000h PROGRAM COUNTER PCH (4-BIT) PCL (6-BIT) PROGRAM MEMORY |
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