參數(shù)資料
型號(hào)： PSD412A2
英文描述： Field Programmable Microcontroller Peripherals(可編程邏輯，16K位SRAM,40個(gè)可編程I/O,通用PLD有59個(gè)輸入)
中文描述： 現(xiàn)場(chǎng)可編程微控制器外圍設(shè)備（可編程邏輯，16K的位的SRAM，40余個(gè)可編程輸入/輸出，通用PLD的有59個(gè)輸入）
文件頁(yè)數(shù)： 52/97頁(yè)
文件大?。?/td> 309K
代理商： PSD412A2
PSD4XX Famly
4-52
Port A – Functionality and Structure
Port A is the most flexible of all the I/O ports. It can be configured to perform one or more
of the following functions:
J
Standard MCU I/O Mode
J
PLD I/O
J
Address Out – latched address lines A[0-7] are assigned to pins PA[0-7].
J
Address In – input port for other address lines, inputs can be latched by ALE.
J
Peripheral I/O
Figure 26 shows the structure of a Port A pin. If the pin is configured as an output port,
the multiplexer selects one of its three inputs as output. If the pin is configured as an input,
the input connects to :
1. Data In Register as input in Standard MCU I/O Mode
or
2. PA Macrocell as PLD input
or
3. PA Macrocell through a latch latched by ALE, as Address In input.
Port B – Functionality and Structure
Port B is similar to Port A in structure. It can be configured to perform one or more of the
following functions:
J
Standard MCU I/O Mode
J
PLD I/O
J
Address Out – address lines A[0-7] for 8-bit multiplexed bus or address lines
A[8-15] for 16-bit multiplexed bus are assigned to pins PB[0-7].
Figure 27 shows the structure of a Port B pin. If the pin is configured as an output port,
the multiplexer selects one of its three inputs as output. If the pin is configured as input,
the input connects to :
J
Data In Register as input in Standard MCU I/O Mode
or
J
PB Macrocell as PLD input
I/OPorts
(Cont.)
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD412A2-12J 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral
PSD412A2-12JI 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral
PSD412A2-12LI 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral
PSD412A2-12U 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral
PSD412A2-12UI 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral
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