参数资料
型号: PSD813F3-90
厂商: 意法半导体
英文描述: Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
中文描述: Flash在系统可编程(ISP)的周边8位MCU,5V的
文件页数: 45/110页
文件大小: 1685K
代理商: PSD813F3-90
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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相关代理商/技术参数
参数描述
PSD813F3-90J 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F3-90JI 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F3-90JIT 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F3-90JT 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F3-90M 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs