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參數(shù)資料
| 型號： | PSD8135V15MT |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| 中文描述： | Flash在系統(tǒng)可編程ISP的外設(shè)的8位微控制器 |
| 文件頁數(shù)： | 56/110頁 |
| 文件大?。?/td> | 1685K |
| 代理商： | PSD8135V15MT |
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Address In Mode
For microcontrollers that have more than 16 ad-
dress lines, the higher addresses can be connect-
ed to Port A, B, C, and D. The address input can
be latched in the Input Macrocell by the address
strobe (ALE/AS). Any input that is included in the
DPLD equations for the PLD
’
s Flash, EEPROM, or
SRAM is considered to be an address input.
Data Port Mode
Port A can be used as a data bus port for a micro-
controller with a non-multiplexed address/data
bus. The Data Port is connected to the data bus of
the microcontroller. The general I/O functions are
disabled in Port A if the port is configured as a
Data Port.
Peripheral I/O Mode
Peripheral I/O Mode can be used to interface with
external peripherals. In this mode, all of Port A
serves as a tri-stateable, bi-directional data buffer
for the microcontroller. Peripheral I/O Mode is en-
abled by setting Bit 7 of the VM Register to a
‘
1.
’
Figure
28
shows how Port A acts as a bi-direction-
al buffer for the microcontroller data bus if Periph-
eral I/O Mode is enabled. An equation for PSEL0
and/or PSEL1 must be written in PSDabel. The
buffer is tri-stated when PSEL 0 or PSEL1 is not
active.
Figure 28. Peripheral I/O Mode
RD
PSEL0
PSEL1
PSEL
VM REGISTER BIT 7
WR
PA0-PA7
D0-D7
DATA BUS
AI02886
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| PSD8135V20JT | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD8135V20MIT | Enhanced High Power Factor Preregulator 16-SOIC 0 to 70 |
| PSD8135V20MT | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD8135V20JIT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD8135V20JT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD8135V20MIT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD8135V20MT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD8135V70JIT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
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