參數(shù)資料
型號: HD40A4669
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
中文描述: 低電壓如同在微機芯片的DTMF產(chǎn)生電路(帶雙音多頻電路的低電壓微計算機)
文件頁數(shù): 10/142頁
文件大?。?/td> 894K
代理商: HD40A4669
HD404669 Series
10
Memory Map
ROM Memory Map
The ROM memory map is shown in figure 1 and described below.
Vector addresses
(16 words)
Zero page subroutine
area (64 words)
Pattern area (4,096 words)
HD404668/HD40A4668
program area (8,192 word)
$000F
$0010
$0FFF
$1000
$3FFF
$003F
$0040
$0000
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000A
$000B
$000C
$000D
$000E
$000F
ROM address
JMPL instruction
(Jump to reset, stop mode clearance
routine)
JMPL instruction
(Jump to
INT
0
interrupt handling
routine)
JMPL instruction
(Jump to
INT
1
interrupt handling
routine)
(Jump to timer A interrupt handling
routine)
JMPL instruction
(Jump to INT
2
interrupt handling
routine)
JMPL instruction
(Jump to timer C, INT
3
interrupt
handling routine)
JMPL instruction
(Jump to timer D, INT
4
interrupt
handling routine)
ROM address
HD4046612/HD40A46612
program area (12,288 words)
HD404669/HD40A4669/
HCD404669/HD407A4669
program area (16,384 words)
$1FFF
$2000
$2FFF
$3000
JMPL instruction
(Jump to serial 1 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: HD404668, HD40A4668; $0000–$2FFF: HD4046612, HD40A46612;
$0000–$3FFF: HD404669, HD40A4669, HD407A4669, HCD404669):
Used for program coding.
相關PDF資料
PDF描述
HD404668 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
HD404669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
HD407A4669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
HD404719FS Five timer/counters
HD404439FS Five timer/counters
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