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HD404849H Datasheet(PDF) 9 Page - Renesas Technology Corp |
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HD404849H Datasheet(HTML) 9 Page - Renesas Technology Corp |
9 / 127 page HD404849 Series 7 Memory Map ROM Memory Map The ROM memory map is shown in figure 1 and described below. Vector Address Area ($0000–$000F): Reserved for JMPL instructions that branch to the start addresses of the reset and interrupt routines. After MCU reset or an interrupt, program execution continues from the vector address. 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–$1FFF: HD404848; $0000–$2FFF: HD4048412; $0000–$3FFF: HD404849, HD4074849): Used for program coding. 0 15 63 4095 8191 12287 16383 $0000 $000F $003F $0FFF $1FFF $2FFF $3FFF HD404849/ HD4074849 program area (16,384 words) HD4048412 program area (12,288 words) HD404848 program area (8,192 words) Pattern area (4,096 words) Zero-page subroutine area (64 words) Vector address area (16 words) $0000 $0001 $0002 $0003 $0004 $0005 $0006 $0007 $0008 $0009 $000A $000B $000C $000D $000E $000F 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 JMPL instruction (jump to RESET, STOPC routine) JMPL instruction (jump to INT routine) JMPL instruction (jump to INT routine) JMPL instruction (jump to timer A routine) JMPL instruction (jump to timer B, INT routine) JMPL instruction (jump to timer C, INT routine) 3 JMPL instruction (jump to timer D routine) JMPL instruction (jump to A/D, serial routine) 2 0 1 Figure 1 ROM Memory Map |
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