參數(shù)資料
型號(hào)： PSD211R-B-15M
廠商： 意法半導(dǎo)體
英文描述： Low Cost Field Programmable Microcontroller Peripherals
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)： 15/51頁(yè)
文件大?。?/td> 348K
代理商： PSD211R-B-15M
PSD211R Famly
12
10.0
I/OPort
Functions
The PSD211R has three I/O ports (Ports A, B, and C) that are configurable at the bit level.
This permits great flexibility and a high degree of customization for specific applications.
The next section describes the control registers for the ports. Following that are sections
that describe each port. Figures 5 through 7 show the structure of Ports A through C,
respectively.
Note:
any unused inputs should be connected directly to ground or pulled up to V
CC
(using
a 10K
to 100K
resistor).
10.1 CSIOPORT Registers
Control of the ports is primarily handled through the CSIOPORT registers. There are 24
bytes in the address space, starting at the base address labeled CSIOPORT. Since the
PSD211R uses internal address lines A15-A11 for decoding, the CSIOPORT space
will occupy 2 Kbytes of memory, on a 2 Kbyte boundary. This resolution can be improved
to reduce wasted address space by connecting lower order address lines (A10 and below)
to Port C. Using this method, resolution down to 256 Kbytes may be achieved. The
CSIOPORT space
must be defined in your PSDsoft design file
. The following tables list
the registers located in the CSIOPORT space.
Table 5. CSIOPORT Registers for 8-Bit Data Busses
NOTE:
1. ZPSD only.
Ofset (in hex)
fromCSIOPORT
Base Address
Type of
Access
Allowed
Register Name
Port A Pin Register
Port A Direction Register
Port A Data Register
Port B Pin Register
Port B Direction Register
Port B Data Register
Power Management Register (Note 1)
+2
+4
+6
+3
+5
+7
+10
Read
Read/Write
Read/Write
Read
Read/Write
Read/Write
Read/Write
10.2 Port A (PA0-PA7)
MCUI/OMode
The default configuration of Port A 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 5). As an output, the pin level can be controlled by writing to the respective
pin’s data flip-flop (DFF, Figure 5A). 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.
相關(guān)PDF資料
PDF描述
PSD211R-B-70J Low Cost Field Programmable Microcontroller Peripherals
PSD211R-B-70L Low Cost Field Programmable Microcontroller Peripherals
PSD211R-B-70M Low Cost Field Programmable Microcontroller Peripherals
PSD211R-B-90J Low Cost Field Programmable Microcontroller Peripherals
PSD211R-B-90JI Low Cost Field Programmable Microcontroller Peripherals
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD211R-B-70J 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
PSD211RB-70J 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 U 511-ZPSD301B-70J 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
PSD211R-B-70L 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
PSD211R-B-70M 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
PSD211R-B-90J 制造商:WSI 功能描述:
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