參數(shù)資料
型號(hào)： PSD313R-A-90JM
廠(chǎng)商： 意法半導(dǎo)體
英文描述： Current Mode PWM Controller 14-SOIC 0 to 70
中文描述： 低成本現(xiàn)場(chǎng)可編程微控制器外圍設(shè)備
文件頁(yè)數(shù)： 21/85頁(yè)
文件大?。?/td> 691K
代理商： PSD313R-A-90JM
PSD3XX Famly
18
10.
I/OPort
Functions
(
cont.)
10.3 Port B (PB0-PB7)
The control registers of Port B are located in CSIOPORT space; see Table 5A and 5B.
10.3.1 Port B (PB0-PB7) in Multiplexed Address/Data Mode
Each pin of Port B can be individually configured. The following table summarizes what the
control registers (in CSIOPORT space) for Port B do:
NOTE:
1. Default value is the value after reset.
Default
Value
(Note 1)
Register Name
0 Value
1 Value
Port B Pin Register
Sampled logic level
at pin = ‘0’
Pin is configured
as input
Data in DFF = ‘0’
Sampled logic level
at pin = ‘1’
Pin is configured
as output
Data in DFF = ‘1’
X
Port B Direction Register
0
Port B Data Register
0
MCUI/OMode
The default configuration of Port B is MCU I/O. In this mode, every pin can be set
(at run-time) as an input or output by writing to the respective pin’s direction flip-flop (DIR
FF, Figure 6). As an output, the pin level can be controlled by writing to the respective pin’s
data flip-flop (DFF, Figure 6). The Pin Register can be read to determine logic level of the
pin. The contents of the Pin Register indicate the true state of the PSD driving the pin
through the DFF or an external source driving the pin. Pins can be configured as CMOS
or open-drain using
ST
’s PSDsoft software. Open-drain pins require external pull-up
resistors.
Chip Select Output
Alternatively, each bit of Port B can be configured to provide a chip-select output signal
from PAD B. PB0-PB7 can provide CS0-CS7, respectively. The functionality of these pins is
not limited to chip selects only; they can be used for generic combinatorial logic as well.
Each of the CS0-CS3 signals is comprised of four product terms, and each of the CS4-CS7
signals is comprised of two product terms.
相關(guān)PDF資料
PDF描述
PSD313R-B-70J Low Cost Field Programmable Microcontroller Peripherals
PSD301V-90J Low Cost Field Programmable Microcontroller Peripherals
PSD301V-90JI Low Cost Field Programmable Microcontroller Peripherals
PSD301V-90JM Low Cost Field Programmable Microcontroller Peripherals
PSD302-15J Low Cost Field Programmable Microcontroller Peripherals
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD313R-B-15J 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
PSD313R-B-70J 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
PSD313RB-70J 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 5V 1M 70ns RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)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
PSD313R-B-90JI 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
PSD313V-15J 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
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