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參數(shù)資料
| 型號： | PSD4135G3V-A-90MI |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| 中文描述： | Flash在系統(tǒng)可編程外設(shè)的16位微控制器 |
| 文件頁數(shù)： | 31/93頁 |
| 文件大小： | 503K |
| 代理商： | PSD4135G3V-A-90MI |
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The
PSD4000
Functional
Blocks
(cont.)
MAIN
FLASH
DPLD
FLASH
BOOT
BLOCK
SRAM
RS0
CSBOOT0-3
FS0-7
CS
CS
CS
OE
OE
RD
PSEN
OE
Figure 6. 80C51XA Memory Modes – Separate Space Mode
MAIN
FLASH
DPLD
FLASH
BOOT
BLOCK
SRAM
RS0
CSBOOT0-3
FS0-7
RD
CS
CS
CS
RD
OE
OE
VM REG BIT 2
PSEN
VM REG BIT 0
VM REG BIT 1
VM REG BIT 3
VM REG BIT 4
OE
Figure 7. 80C51XA Memory Mode – Combined Space Mode
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 main Flash Memory, while the RD
signal is used to access data from the secondary Flash memory, 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, secondary Flash memory, 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
”
.
9.1.3.3 80C51XA Memory Map Example
See Application Notes for examples.
PSD4000 Series
Preliminary Information
28
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PSD4135G3V-A-90U | Ceramic Commercial-Off-The-Shelf Surface Mount Capacitors (COTS); Capacitance [nom]: 0.56uF; Working Voltage (Vdc)[max]: 50V; Capacitance Tolerance: +/-5%; Dielectric: Multilayer Ceramic; Temperature Coefficient: X7R; Lead Style: Surface Mount Chip; Lead Dimensions: 1812; Termination: Tin (Sn) Plated Nickel Barrier; Body Dimensions: 0.177" x 0.126"; Container: Bulk; Features: MIL-PRF-55681; Unmarked |
| PSD4135G3V-A-90UI | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G3V-B-12B81I | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G3V-B-12J | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G3V-B-12JI | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD4135G3V-A-90U | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G3V-A-90UI | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G3V-B-12B81 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G3V-B-12B81I | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G3V-B-12J | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
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