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HD40A4639R Datasheet(PDF) 8 Page - Renesas Technology Corp |
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HD40A4639R Datasheet(HTML) 8 Page - Renesas Technology Corp |
8 / 135 page HD404639R Series 6 Memory Map ROM Memory Map The ROM memory map is shown in figure 1 and described below. 0 15 16 63 64 4095 4096 16383 0 $000F $0FFF $1000 $3FFF $0010 $003F $0040 Vector address Zero-page subroutine (64 words) Pattern (4,096 words) Program (8,192 words) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 $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, INT routine) JMPL instruction (Jump to timer C, INT routine) JMPL instruction (Jump to timer D, INT routine) JMPL instruction (Jump to INT routine) JMPL instruction (Jump to serial 1, serial 2 routine) 2 3 Program (16,384 words) For HD404638R, HD40A4638R For HD404639R, HD40A4639R, HD407A4639R 4 8191 8192 $1FFF $2000 Figure 1 ROM Memory Map 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 (HD404638R, HD40A4638R), $0000–$3FFF (HD404639R, HD40A4639R, HD407A4639R)): Used for program coding. |
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