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HS4339ESF01H Datasheet(PDF) 9 Page - Hitachi Semiconductor |
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HS4339ESF01H Datasheet(HTML) 9 Page - Hitachi Semiconductor |
9 / 78 page HD404339 Series 9 Memory Map ROM Memory Map Vector Address Area ($0000–$000F): Reserved for JMPL instructions that branch to the start addresses of the reset and interrupt routines. Zero-Page Subroutine Area ($0000–$003F): Reserved for subroutines. The program branches to a subroutine in this area in response to the CAL instruction. Pattern Area ($0000–$0FFF): Contains ROM data that can be referenced with the P instruction. Program Area ($0000-$0FFF (HD404334), $0000-$17FF (HD404336), $0000–$1FFF (HD404338), $0000–$2FFF (HD4043312), $0000–$3FFF (HD404339, HD4074339)): The entire ROM area can be used for program coding. $000F $0FFF $1000 $2FFF $0010 $003F $0040 Vector address (16 words) Zero-page subroutine (64 words) Pattern (4,096 words) HD404334 Program (4,096 words) HD404338 Program (8,192 words) $0000 $0000 $0001 $0002 $0003 $0004 $0005 $0006 $0007 $0008 $0009 $000A $000B $000C $000D $000E $000F 0 1 JMPL instruction (jump to RESET, STOPC routine) JMPL instruction (jump to INT routine) JMPL instruction (jump to timer A routine) JMPL instruction (jump to timer B routine) JMPL instruction (jump to timer C routine) JMPL instruction (jump to A/D converter routine) JMPL instruction (jump to INT routine) JMPL instruction (jump to serial routine) HD4043312 Program (12,288 words) HD404339, HD4074339 Program (16,384 words) $1FFF $2000 $3000 $3FFF HD404336 Program (6,144 words) $17FF $1800 Note: Since the ROM address areas between $0000–$0FFF overlap, the user can determine how these areas are to be used. Figure 1 ROM Memory Map |
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