參數資料
型號: ZPSD512B1
英文描述: Field Programmable Microcontroller Peripherals(可編程邏輯,零功耗,16K位SRAM,40個可編程I/O,通用PLD有61個輸入)
中文描述: 現場可編程微控制器外圍設備(可編程邏輯,零功耗,16K的位的SRAM,40余個可編程輸入/輸出,通用PLD的有61個輸入)
文件頁數: 48/142頁
文件大?。?/td> 786K
代理商: ZPSD512B1
ZPSD5XX Famly
7-48
Port C and Port D D Functionality and Structure
Port C and D are identical in function and structure and each can be configured to perform
one or more of the following operating modes:
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Standard MCU I/O Mode
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PLD Input – direct input to ZPLD
J
Address Out – latched address outputs
– Port C: A[0-7] are asigned to pins PC[0-7]
– Port D: A[0-7] for 8-bit multiplexed bus, or A[8-15] for 16-bit multiplexed bus are
assigned to pins PD[0-7]
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Data Port
– Port C: D[0-7] for 8-bit non-multiplexed bus
– Port D: D[8-15] for 16-bit non-multiplexed bus
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Open Drain – select CMOS or Open Drain driver
Figures 23 and 24 show the structure of a Port C or D pin. If the pin is configured as output
port, the multiplexer selects one of the two inputs as output. If the pin is configured as input,
the input connects to :
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Data In Register as input in the Standard MCU I/O Mode
or
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ZPLD input
Port E D Functionality and Structure
Port E can be configured to perform one or more of the following functions:
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Standard MCU I/O Mode
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PLD I/O
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Address Out – latched address lines A[0-7] are assigned to pins PE[0-7].
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Special Function Out – in this mode, Port E pin is configured as an output port for the
following signals:
PE2 – INTERRUPT – interrupt output from Interrupt Controller
PE4 – Terminal Count output, Timer0
PE5 – Terminal Count output, Timer1
PE6 – Terminal Count output, Timer2
PE7 – Terminal Count output, Timer3
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Alternate Function In – in this mode, the inputs to Port E pins are:
PE0 – BHE/ or PSEN/ or WRH/ or UDS/ or SIZ0
PE1 – ALE
PE3 – TIMER0-IN
:load/store/enable/ disable input to Timer 0
PE4 – TIMER1-IN
:load/store/enable/disable input to Timer 1
PE5 – TIMER2-IN
:load/store/enable/disable input to Timer 2
PE6 – TIMER3-IN
:load/store/enable/disable input to Timer 3
PE7 – APD CLK
:clock input for Automatic Power Down Counter
Figure 25 shows the structure of a Port E pin. The Control Logic block selects one of four
sources through the multiplexer for pin output. If the pin is configured as input, the input
goes to:
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Data In Register as input in Standard MCU I/O Mode
or
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PE Macrocell as PLD input
or
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Alternate Function In
I/OPorts
(Cont.)
相關PDF資料
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