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參數(shù)資料
| 型號： | XC866 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁數(shù)： | 22/108頁 |
| 文件大小： | 979K |
| 代理商： | XC866 |
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XC866
Functional Description
Data Sheet
18
V1.0, 2006-02
In order to access a register located in a page different from the actual one, the current
page must be left. This is done by reprogramming the bit field PAGE in the page register.
Only then can the desired access be performed.
If an interrupt routine is initiated between the page register access and the module
register access, and the interrupt needs to access a register located in another page, the
current page setting can be saved, the new one programmed and finally, the old page
setting restored. This is possible with the storage fields STx (x = 0 - 3) for the save and
restore action of the current page setting. By indicating which storage bit field should be
used in parallel with the new page value, a single write operation can:
Save the contents of PAGE in STx before overwriting with the new value
(this is done in the beginning of the interrupt routine to save the current page setting
and program the new page number); or
Overwrite the contents of PAGE with the contents of STx, ignoring the value written to
the bit positions of PAGE
(this is done at the end of the interrupt routine to restore the previous page setting
before the interrupt occurred)
Figure 9
Storage Elements for Paging
With this mechanism, a certain number of interrupt routines (or other routines) can
perform page changes without reading and storing the previously used page information.
The use of only write operations makes the system simpler and faster. Consequently,
this mechanism significantly improves the performance of short interrupt routines.
The XC866 supports local address extension for:
Parallel Ports
Analog-to-Digital Converter (ADC)
Capture/Compare Unit 6 (CCU6)
System Control Registers
PAGE
ST0
ST1
ST2
ST3
value update
from CPU
STNR
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| XC866-2FR | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| XC866-2RR | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| XC866-4FR | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| XC866-4RR | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| XC866L-2FR | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XC866_05 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit Single Chip Microcontroller |
| XC866_07 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit Single-Chip Microcontroller |
| XC8661FRAABKXUMA1 | 制造商:Infineon Technologies AG 功能描述:MCU 8-bit XC800 8051 CISC ROMLess 5V 38-Pin TSSOP T/R 制造商:Infineon Technologies AG 功能描述:8 BIT FLASH - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC MCU 8BIT FLASH 38-TSSOP |
| XC8661FRIABFXUMA1 | 制造商:Infineon Technologies AG 功能描述:MCU 8-BIT XC800 8051 CISC ROMLESS 2.5V/5V 38-PIN TSSOP 制造商:Infineon Technologies AG 功能描述:8 BIT FLASH - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC MCU 8BIT FLASH 38-TSSOP |
| XC8661FRIABKXUMA1 | 制造商:Infineon Technologies AG 功能描述:MCU 8-Bit XC800 8051 CISC ROMLess 2.5V/5V 38-Pin TSSOP 制造商:Infineon Technologies AG 功能描述:8 BIT FLASH - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC MCU 8BIT FLASH 38-TSSOP |
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