參數(shù)資料
型號： PSD834F2
英文描述： Flash In-System Programmable (ISP) Peripherals For 8-bit MCUs(用于8位MCUs的閃速ISP外圍)
中文描述： Flash在系統(tǒng)可編程（ISP）為周邊8位微控制器（用于8位微控制器的閃速的ISP外圍）
文件頁數(shù)： 50/98頁
文件大?。?/td> 595K
代理商： PSD834F2
PSD8XXF2/3/4/5
50/98
Table 27. Port Data Registers
Data In.
Port pins are connected directly to the
Data In buffer. In MCU I/O input mode, the pin in-
put is read through the Data In buffer.
Data Out Register.
Stores output data written by
the MCU in the MCU I/O output mode. The con-
tents oftheRegister are driven outto the pins ifthe
Direction Register or the output enable product
term is set to 1. The contents of the register can
also be read back by the MCU.
Output Macrocells (OMC).
The CPLD
Macrocells (OMC) occupy a location in the MCU’s
address space. The MCU can read the output of
the Output Macrocells (OMC). If the OMC Mask
Register bits are not set, writing to the macrocell
loads data to themacrocell flip-flops. See the sec-
tion entitled “PLDs”, on page 27.
Output
OMC Mask Register.
Each OMC Mask Register
bit corresponds to an Output Macrocell (OMC) flip-
flop. When the OMC Mask Register bit is set to a
1, loading data into the Output Macrocell (OMC)
flip-flop is blocked. The default value is 0 or un-
blocked.
Input Macrocells (IMC).
The
(IMC) can be used to latchor store external inputs.
The outputs of theInput Macrocells (IMC) arerout-
ed to the PLD input bus, and can be read by the
MCU. See the section entitled “PLDs”, onpage 27.
Enable Out.
The Enable Out register can beread
by the MCU. It contains the output enable values
for a given port. A1 indicates the driver is in output
mode. A0 indicates thedriver isin tri-state and the
pin is in input mode.
Input
Macrocells
Register Name
Port
MCU Access
Data In
A,B,C,D
Read – input on pin
Data Out
A,B,C,D
Write/Read
Output Macrocell
A,B,C
Read – outputs of macrocells
Write – loading macrocells flip-flop
Mask Macrocell
A,B,C
Write/Read – prevents loading into a given
macrocell
Input Macrocell
A,B,C
Read – outputs of the Input Macrocells
Enable Out
A,B,C
Read – the output enable control of the port driver
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD834F2-15M 制造商:STMicroelectronics 功能描述:Flash In-System Programmable Peripherals 52-Pin PQFP
PSD834F2-70J 功能描述:CPLD - 復(fù)雜可編程邏輯器件 5.0V 2M 70ns RoHS:否 制造商:Lattice 系列: 存儲類型:EEPROM 大電池數(shù)量:128 最大工作頻率:333 MHz 延遲時間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100
PSD834F2-70M 功能描述:SPLD - 簡單可編程邏輯器件 5.0V 2M 70ns 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(fēng)格:Through Hole 封裝 / 箱體:DIP-24
PSD834F2-90J 功能描述:CPLD - 復(fù)雜可編程邏輯器件 5.0V 2M 90ns RoHS:否 制造商:Lattice 系列: 存儲類型:EEPROM 大電池數(shù)量:128 最大工作頻率:333 MHz 延遲時間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100
PSD834F2-90JI 功能描述:CPLD - 復(fù)雜可編程邏輯器件 5.0V 2M 90ns RoHS:否 制造商:Lattice 系列: 存儲類型:EEPROM 大電池數(shù)量:128 最大工作頻率:333 MHz 延遲時間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100
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