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參數(shù)資料
| 型號： | HD404368 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 4-bit HMCS400-Series microcomputer(4位單片微計算機) |
| 中文描述： | 4位HMCS400系列微機（4位單片微計算機） |
| 文件頁數(shù)： | 10/115頁 |
| 文件大小： | 710K |
| 代理商： | HD404368 |
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HD404369 Series
10
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,
timer/counters, A/D converter, 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.
Memory Register (MR) Area ($040–$04F):
Consisting of 16 addresses, this area (MR0–MR15) can be
accessed by register-register instructions (LAMR and XMRA). The structure is shown in figure 6.
Data Area ($050–$1FF)
Stack Area ($3C0–$3FF):
Used for saving the contents of the program counter (PC), status flag (ST), and
carry flag (CA) at subroutine call (CAL or CALL instruction) and for interrupts. This area can be used as a
16-level nesting subroutine stack in which one level requires four digits. The data to be saved and the save
conditions are shown in figure 6.
The program counter is restored by either the RTN or RTNI instruction, but the status and carry flags can
only be restored by the RTNI instruction. Any unused space in this area is used for data storage.
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| HD40A4368 | 4-bit HMCS400-Series microcomputer(4位單片微計算機) |
| HD40A4369 | 4-bit HMCS400-Series microcomputer(4位單片微計算機) |
| HD404364 | 4-bit HMCS400-Series microcomputer(4位單片微計算機) |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD404368F | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit HMCS400-Series microcomputer |
| HD404368H | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer has an A/D converter |
| HD404368S | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit HMCS400-Series microcomputer |
| HD404369 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer has an A/D converter |
| HD404369F | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit HMCS400-Series microcomputer |
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