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參數(shù)資料
| 型號(hào)： | S3C1860XX-SK |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
| 封裝： | SOP-20 |
| 文件頁(yè)數(shù)： | 4/95頁(yè) |
| 文件大?。?/td> | 339K |
| 代理商： | S3C1860XX-SK |
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S3C1860
3-11
REGISTER DESCRIPTIONS
Stack Register (SR)
Three levels of subroutine nesting are supported by a three-level stack as shown in Figure 3-11.
Each subroutine call (CALL) pushes the next PA and PC address into the stack. The latest stack to be stored will
be overwritten and lost. Each return instruction (RET) pops the stack back into the PA and PC registers.
PA
PC
SR
: Push Operation (CALL)
: Pop Operation (RET)
Figure 3-11. Stack Operations
Page Address Register (PA), Page Buffer Register (PB)
The Page Address Register (PA) and Page Buffer Register (PB) are 4-bit registers. The PA always specifies the
current page.
A page select instruction (PAGE #n) loads the value "n" into the PB. When JP or CALL instruction is executed,
and if the Status Flag (SF) is set to 1, the contents of PB are loaded into PA. If SF is "0", however, the JP or
CALL is executed like NOP instruction and SF is set to "1". The contents of PB don't be loaded. Figure 3-12
illustrates this concept.
PAGE #n
; PB
n
PB
PA
4
JP xxx (CALL xxx)
; PA
PB
Common Bus
if SF = 1
Figure 3-12. PA, PB Operations
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S3C1860XX-DK | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP20 |
| S3P7048-QZ | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP42 |
| S3P72B9-QA | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP128 |
| S3C72B5XX-QA | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP128 |
| S3P72G9XX-QX | 4-BIT, OTPROM, 4.19 MHz, MICROCONTROLLER, PQFP100 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S3C2400 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:RISC MICROPROCESSOR |
| S3C2410A | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:32-Bit RISC Microprocessor |
| S3C2410A-20 | 制造商:Samsung Electro-Mechanics 功能描述:Microprocessor, 32 Bit, 272 Pin, Plastic, BGA |
| S3C2410A20-YO80 | 制造商:Samsung Semiconductor 功能描述: 制造商:Samsung Semiconductor 功能描述:200MHz, MMU, NAND Flash Boot Loader, ROM/SRAM/SDRAM Control, STN/TFT LCD Control, Touch Panel Control, MMC/SD Card, USB, 10bit ADC/Lead Free |
| S3C2410A20-YOR0 | 制造商:Samsung Electro-Mechanics 功能描述:Microprocessor, 32 Bit, 272 Pin, Plastic, BGA |
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