參數(shù)資料
型號: PSD501B1-C-90JI
廠商: 意法半導體
英文描述: Low Cost Field Programmable Microcontroller Peripherals
中文描述: 低成本現(xiàn)場可編程微控制器外圍設備
文件頁數(shù): 43/153頁
文件大?。?/td> 1036K
代理商: PSD501B1-C-90JI
PSD5XX Famly
40
9.3.3 Address Out
For microcontrollers with a multiplexed address/data bus, the I/O ports in Address-Out
mode are able to provide latched address outputs (A0 – A15) to external devices. This
mode of operation requires the user to:
J
Configuration
1.Declare the pins used as address line outputs in the ABEL file PSDsoft.
2.Write “0” to the corresponding bit in the Control Register associated
with each I/O port.
3.Set the Direction Register to Output Mode.
9.3.4 Address In
1. For Port A – as other address line (A2 – A7 and A16 – A23) inputs to the DPLD.
Additional address inputs included in the EPROM decoding must come from Port A.
The address inputs are latched internally by ALE/AS if Multiplexed Bus is specified in
PSDsoft.
2. For Ports C and D – as adress inputs to the ZPLD for general decoding, should not be
used in EPROM decoding.
J
Configuration
1.Declare pins or signals used as Address In in the ABEL file (PSDsoft).
2.Write latch equations in the ABL file, e.g., A16.LE = ALE
3.Include latched address in logic equations.
9.3.5 Data Port
In this mode, the port is acting as a data bus port for a microcontroller which has a
non-multiplexed address/data bus. In this configuration, the Data Port is connected to the
data bus of the microcontroller and the ADIO port is connected to the address bus.
J
Configuration
Select the non-multiplexed bus option in PSD configuration (PSDsoft).
9.3.6 Special Function Out
This mode is per-pin configurable. When enabled, the special function assigned to the
particular pin is driven out. Special functions consist of Timer and Interrupt outputs.
J
Configuration
1.Specify the output function in the PSD configuration (PSDsoft).
2.PSD compiler assigns pins for the selected function.
3.Write “1” to the corresponding bit in the Special Function Register.
I/OPorts
(Cont.)
相關(guān)PDF資料
PDF描述
PSD511B1-C-90JI Low Cost Field Programmable Microcontroller Peripherals
PSD501B1-C-90UI EXPRESS ETHERNET SWITCH 16 PORT
PSD511B1-C-90UI Low Cost Field Programmable Microcontroller Peripherals
PSD5XX Low Cost Field Programmable Microcontroller Peripherals
PSD502B1-C-15J Low Cost Field Programmable Microcontroller Peripherals
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD501B1C-90JI 功能描述:SPLD - 簡單可編程邏輯器件 5.0V 256K 90ns RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池數(shù)量:10 最大工作頻率:66 MHz 延遲時間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風格:Through Hole 封裝 / 箱體:DIP-24
PSD501B1-C-90UI 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
PSD501H 制造商:PACELEADER 制造商全稱:PACELEADER INDUSTRIAL 功能描述:SURFACE MOUNT SCHOTTKY BARRIER DIODES
PSD502B1 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PSD5XX/ZPSD5XX FAMILY FIELD-PROGRAMMABLE MICROCONTROLLER PERIPHERALS
PSD502B1-12J 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral