參數(shù)資料
型號(hào): HD4048212R
廠商: Hitachi,Ltd.
英文描述: AS Microcomputer Incorporating a LCD controller/Driver Circuit(帶LCD控制/驅(qū)動(dòng)電路的微計(jì)算機(jī))
中文描述: 由于微機(jī)安裝有LCD控制器/驅(qū)動(dòng)電路(帶液晶控制/驅(qū)動(dòng)電路的微計(jì)算機(jī))
文件頁數(shù): 11/147頁
文件大?。?/td> 519K
代理商: HD4048212R
HD404829R Series
11
RAM Memory Map
The MCU contains a 1,876-digit
×
4-bit RAM area consisting of a memory register area, an LCD data area,
a data area, and a stack area. In addition, an interrupt control bits area, special register area, and register
flag area are mapped onto the same RAM memory space as a RAM-mapped register area outside the above
areas. 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,
timer/counters, LCD, 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). The SEM, SEMD, REM, and REMD instructions can be used for the LCD control
register (LCR: $01B), but RAM bit manipulation instructions cannot be used for other 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.
相關(guān)PDF資料
PDF描述
HD4074829 AS Microcomputer Incorporating a LCD controller/Driver Circuit(帶LCD控制/驅(qū)動(dòng)電路的微計(jì)算機(jī))
HD404828R AS Microcomputer Incorporating a LCD controller/Driver Circuit(帶LCD控制/驅(qū)動(dòng)電路的微計(jì)算機(jī))
HD404829R AS Microcomputer Incorporating a LCD controller/Driver Circuit(帶LCD控制/驅(qū)動(dòng)電路的微計(jì)算機(jī))
HD4048412 4-Bit Single-Chip Microcomputer
HD4048412FS 4-Bit Single-Chip Microcomputer
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD4048212RFS 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a LCD controller/Driver Circuit
HD4048212RH 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a LCD controller/Driver Circuit
HD4048212RTF 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a LCD controller/Driver Circuit
HD4048212TF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD404828FS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller