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參數(shù)資料
| 型號(hào)： | HD407A4669 |
| 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(jì)算機(jī)) |
| 中文描述： | 低電壓如同在微機(jī)芯片的DTMF產(chǎn)生電路（帶雙音多頻電路的低電壓微計(jì)算機(jī)） |
| 文件頁(yè)數(shù)： | 11/142頁(yè) |
| 文件大?。?/td> | 894K |
| 代理商： | HD407A4669 |
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HD404669 Series
11
RAM Memory Map
The MCU contains a RAM area consisting of a memory register area, a data area, and a stack area. In
addition, an interrupt control bits area, special function register area, and register flag area are mapped onto
the same RAM memory space. The RAM memory map is shown in figure 2 and described below.
RAM-Mapped Register Area ($000–$03F):
Interrupt Control Bits Area ($000–$003)
This area is used for interrupt control bits (figure 3). These bits can be accessed only by RAM bit
manipulation instructions (SEM/SEMD, REM/REMD, and TM/TMD). However, note that not all the
instructions can be used for each bit. Limitations on using the instructions are shown in figure 4.
Special Function Register Area ($004–$01F, $024–$03F)
This area is used as mode registers and data registers for external interrupts, serial interface, timers,
DTMF, comparator, and as data control registers for I/O ports. The structure is shown in figures 2 and
5. These registers can be classified into three types: write-only (W), read-only (R), and read/write
(R/W). RAM bit manipulation instructions cannot be used for these registers.
Register Flag Area ($020–$023)
This area is used for the DTON, WDON, and other register flags and interrupt control bits (figure 3).
These bits can be accessed only by RAM bit manipulation instructions (SEM/SEMD, REM/REMD, and
TM/TMD). However, note that not all the instructions can be used for each bit. Limitations on using
the instructions are shown in figure 4.
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| HD404719FS | Five timer/counters |
| HD404439FS | Five timer/counters |
| HD4074719FS | Five timer/counters |
| HD404439H | Five timer/counters |
| HD404719 | Five timer/counters |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD407A4669H | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit |
| HD407C4374 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HMCS43XXFamily User＇s Manual/Device |
| HD407C4374FT | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Low-Voltage AS Microcomputers with On-Chip A/D Converter |
| HD407C4384FT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
| HD407C4384S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
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