參數(shù)資料
型號: ZPSD813F1V
英文描述: Flash In System Programmable Mirocomputer Peripherals(閃速,在系統(tǒng)可編程微控制器外圍器件,1M位閃速存儲器,256K位EEPROM,16K位SRAM)
中文描述: Flash在系統(tǒng)可編程Mirocomputer外設(shè)(閃速,在系統(tǒng)可編程微控制器外圍器件,100萬位閃速存儲器,256K位的EEPROM,16K的位的SRAM)
文件頁數(shù): 36/130頁
文件大?。?/td> 650K
代理商: ZPSD813F1V
PSD813F Family
Preliminary
32
The
PSD813F
Functional
Blocks
(cont.)
9.1.3.2 Configuration Modes for MCUs with Separate Program and Data Spaces
9.1.3.2.1 Separate Space Modes
Code memory space is separated from data memory space. For example, the PSEN
signal is used to access the program code from the Flash Memory, while the RD signal is
used to access data from the EEPROM, SRAM and I/O Ports. This configuration requires
the VM register to be set to 0Ch.
9.1.3.2.2 . Combined Space Modes
The program and data memory spaces are combined into one space that allows the main
Flash Memory, EEPROM, and SRAM to be accessed by either PSEN or RD. For example,
to configure the main Flash memory in combined space mode, bits 2 and 4 of the VM
register are set to “1”.
9.1.3.2.3 Mixed Modes
This allows individual Flash memory or EEPROM sectors with overlapping addresses to be
configured in either Data Space or Program Space. Flash memory or EEPROM sector
select signals must be qualified with the RD or PSEN input in the FS0-FS7 or EES0-EES3
equations. An active RD or PSEN will select memory sectors in the Data Space or in the
Program Space. For memory sectors that reside in Data Space or Program Space, the
access time is calculated from RD or PSEN valid to data valid.
9.1.3.5 80C31 Memory Map Example
In this example, the PSD Memory will be configured as shown in Figure 8.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZPSD813F1V-15J 制造商:WSI 功能描述:
ZPSD813F1V-15J-CC790 制造商:STMicroelectronics 功能描述:Flash In SystemProgrammable Mirocomputer Peripherals
ZPSD813F1V-20J 制造商:WSI 功能描述:
ZPSD813F2-12JI 制造商:WSI 功能描述: 制造商:WSI 功能描述:1M X 1 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQCC52
ZPSD813F2-12UI 制造商:WSI 功能描述: 制造商:WSI 功能描述:1M X 1 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQFP64