- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98069 > S3C70F4XX-AV 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP30 PDF資料下載
參數(shù)資料
| 型號： | S3C70F4XX-AV |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP30 |
| 封裝： | 0.400 INCH, SDIP-30 |
| 文件頁數(shù)： | 94/179頁 |
| 文件大小： | 1070K |
| 代理商： | S3C70F4XX-AV |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第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頁當(dāng)前第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頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁第179頁
ADDRESS SPACES
S3C70F2/C70F4/P70F4
2-8
Memory Banks 0, 1 and 15
Bank 0
(000H–0FFH)
The lowest 32 nibbles of bank 0 (000H–01FH) are used as working registers;
the next 224 nibbles (020H–0FFH) can be used both as stack area and as
general-purpose data memory. Use the stack area for implementing subroutine
calls and returns, and for interrupt processing.
Bank 1
(100H–1FFH)
This area is used as general-purpose data memory.
Bank 15
(F80H–FFFH)
The microcontroller uses bank 15 for memory-mapped peripheral I/O. Fixed
RAM locations for each peripheral hardware register are mapped into this area.
Data Memory Addressing Modes
The enable memory bank (EMB) flag controls the addressing mode for data memory banks 0 or 15. When the
EMB flag is logic zero, the addressable area is restricted to specific locations, depending on whether direct or
indirect addressing is used. With direct addressing, you can access locations 000H–07FH of bank 0, bank 1 and
bank 15. With indirect addressing, only bank 0 (000H–0FFH) can be accessed. When the EMB flag is set to logic
one, all three data memory banks can be accessed according to the current SMB value.
For 8-bit addressing, two 4-bit registers are addressed as a register pair. When using 8-bit instructions to address
RAM locations, remember to use the even-numbered register address as the instruction operand.
Working Registers
The RAM working register area in data memory bank 0 is further divided into four register banks (bank 0, 1, 2,
and 3). Each register bank has eight 4-bit registers and paired 4-bit registers are 8-bit addressable.
Register A is used as a 4-bit accumulator and register pair EA is an 8-bit extended accumulator. The carry flag
bit can also be used as a 1-bit accumulator. Register pairs WX, WL, and HL are used as address pointers for
indirect addressing. To limit the possibility of data corruption due to incorrect register addressing, it is advisable
to use register bank 0 for the main program and banks 1, 2, and 3 for interrupt service routines.
Bit Sequential Carrier (BSC)
The bit sequential carrier (BSC) is a 16-bit general register mapped to RAM addresses FC0H–FC3H that can be
manipulated by 1-, 4-, and 8-bit RAM control instructions.
RESET clears all bit values to logic zero.
You can specify addresses and bit locations sequentially using a 1-bit indirect addressing instruction. In this way,
a program can process 16-bit data by moving the bit location sequentially, incrementing or decrementing the
value of the L register. BSC data can also be manipulated by direct addressing. For 8-bit manipulations, you
must address the upper and lower 8 bits separately.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S3C72M9XX-QA | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP128 |
| S3P72M9-QA | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP128 |
| S3C7414XX-AQ | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP42 |
| S3C7414XX-QZ | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP44 |
| S3P7414XX-QZ | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S3C7235 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:The S3C7238/C7235 single-chip CMOS microcontroller has been designed for high performance using Samsungs newest 4-bit CPU core, SAM47 (Samsung Arrange |
| S3C7238 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:The S3C7238/C7235 single-chip CMOS microcontroller has been designed for high performance using Samsungs newest 4-bit CPU core, SAM47 (Samsung Arrange |
| S3C7281 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:The S3C7281 is a SAM48 core-based 4-bit CMOS single-chip microcontroller. It is built around the SAM48 core CPU and contains ROM, RAM. |
| S3C7295 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:The S3C7295 single-chip CMOS microcontroller has been designed for high performance using Samsungs newest 4-bit CPU core, SAM47 (Samsung Arrangeable M |
| S3C72B5 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:The S3C72B5/C72B7/C72B9 single-chip CMOS microcontroller has been designed for high performance using Samsungs newest 4-bit CPU core, SAM47 (Samsung A |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。