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HD404339FS датащи(PDF) 17 Page - Renesas Technology Corp

номер детали HD404339FS
подробное описание детали  microcomputer with large-capacity memory designed to
PDF  80 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD404339FS датащи(HTML) 17 Page - Renesas Technology Corp

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HD404339 Series
15
ROM Addressing Modes
Direct Addressing Mode: A program can branch to any address in ROM memory space by executing the
JMPL, BRL, or CALL instruction.
Current Page Addressing Mode: A program can branch to any address in the current page (256 words
per page) by executing the BR instruction.
Zero-Page Addressing Mode:
A program can branch to any subroutine located in the zero-page
subroutine area ($0000–$003F) by executing the CAL instruction.
Table Data Addressing Mode: A program can branch to an address determined by the contents of 4-bit
immediate data, the accumulator, and the B register by executing the TBR instruction.
0
0
Direct Addressing
2nd
instruction word
Program counter
Current Page Addressing
97
0
9
Program counter
1st
instruction word
50
Zero-Page Addressing
00
Operand
0
9
Table Data Addressing
7
13
0
9
Operand
Opcode
3
0
13
Operand
******
Opcode
Program counter
0
13
3
Operand
Opcode
BA
0
9
Opcode
00000000
Program counter
0
13
Figure 8 ROM Addressing Modes



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