HD404629R Datasheet, PDF (12/157 Pages) Renesas Technology Corp – AS Microcomputer Incorporating a DTMF Generator Circuit

HD404629R Series
Memory Map
ROM Memory Map
The ROM memory map is shown in figure 1 and described below.
ROM address
ROM address
$0000
$000F
$0010
$003F
$0040
$0FFF
$1000
$1FFF
$2000
$2FFF
$3000
$3FFF
Vector address
(16 words)
Zero-page subroutine
(64 words)
Pattern
(4,096 words)
HD404628R
Program
(8,192 words)
HD4046212R
Program
(12,288 words)
HD404629R, HD4074629
Program
(16,384 words)
$0000
JMPL instruction
$0001 ^{(jump to RESET, STOPC routine)}
$0002
$0003
JMPL instruction
(jump to INT₀ routine)
$0004
$0005
JMPL instruction
(jump to INT₁ routine)
$0006
$0007
JMPL instruction
(jump to timer A routine)
$0008
JMPL instruction
$0009 (jump to timer B, INT ₂ routine)
$000A
JMPL instruction
$000B ^{(jump to timer C, INT} 3 ^routine)
$000C
JMPL instruction
$000D (jump to timer D, INT ₄ routine)
$000E
$000F
JMPL instruction
(jump to A/D, serial routine)
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: HD404628R; $0000–$2FFF: HD4046212R; $0000–$3FFF;
HD404629R, HD4074629): Used for program coding.
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