參數(shù)資料
型號(hào): PSD813512MIT
廠(chǎng)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(yè)數(shù): 45/110頁(yè)
文件大小: 1685K
代理商: PSD813512MIT
45/110
PSD813F1
PSD Interface to a Multiplexed 8-Bit Bus
Figure
21
shows an example of a system using a
MCU with an 8-bit multiplexed bus and a PSD. The
ADIO port on the PSD is connected directly to the
MCU address/data bus. Address Strobe (ALE/AS,
PD0) latches the address signals internally.
Latched addresses can be brought out to Port A or
B. The PSD drives the ADIO data bus only when
one of its internal resources is accessed and Read
Strobe (RD, CNTL1) is active. Should the system
address bus exceed sixteen bits, Ports A, B, C, or
D may be used as additional address inputs.
Figure 21. An Example of a Typical 8-bit Multiplexed Bus Interface
MCU
WR
RD
BHE
ALE
RESET
AD[7:0]
A[15:8]
A[15:8]
(OPTIONAL)
A[7:0]
ADIO
PORT
PORT
A
PORT
B
PORT
C
WR (CNTRL0)
RD (CNTRL1)
BHE (CNTRL2)
RST
ALE (PD0)
PORT D
(OPTIONAL)
PSD
AI02878C
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD813512MT 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813515JIT 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813515JT 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813515MIT 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813515MT 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs