- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370462 > HD404448 (Hitachi,Ltd.) 4-bit HMCS400-Series microcomputer(4位單片微計算機(jī)) PDF資料下載
參數(shù)資料
| 型號： | HD404448 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 4-bit HMCS400-Series microcomputer(4位單片微計算機(jī)) |
| 中文描述： | 4位HMCS400系列微機(jī)（4位單片微計算機(jī)） |
| 文件頁數(shù)： | 8/123頁 |
| 文件大?。?/td> | 726K |
| 代理商： | HD404448 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當(dāng)前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁
HD404449 Series
8
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 1, serial
interface 2, 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 ($090–$2EF):
464 digits from $090 to $25F have two banks, which can be selected by setting
the bank register (V: $03F). Before accessing this area, set the bank register to the required value (figure
7). The area from $260 to $2EF is accessed without setting the bank register.
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD404449 | 4-bit HMCS400-Series microcomputer(4位單片微計算機(jī)) |
| HD4074459 | 4-bit HMCS400-Series microcomputer(4位單片微計算機(jī)) |
| HD404458 | 4-bit HMCS400-Series microcomputer(4位單片微計算機(jī)) |
| HD404459 | 4-bit HMCS400-Series microcomputer(4位單片微計算機(jī)) |
| HD40A4052 | 4-Bit Single-Chip Microcomputer(4位單片微計算機(jī)) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD404448H | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:HD404449 SERIES |
| HD404448TF | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:HD404449 SERIES |
| HD404449 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:HD404449 SERIES |
| HD404449H | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:HD404449 SERIES |
| HD404449SERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。