參數(shù)資料
型號(hào): PSD913F1V-12M
廠商: 意法半導(dǎo)體
英文描述: Flash In-System Programmable ISP Peripherals For 8-bit MCUs
中文描述: Flash在系統(tǒng)可編程ISP的外設(shè)的8位微控制器
文件頁數(shù): 44/94頁
文件大?。?/td> 476K
代理商: PSD913F1V-12M
Preliminary Information
PSD9XX Family
45
The
PSD9XX
Functional
Blocks
(cont.)
Control
Direction
Defined In
Register
Mode
PSDsoft
Setting
at Run-Time
MCU I/O
Declare pins only
0
1 = output,
0 = input,
PLD I/O
Logic or chip
NA
select equations
Data Port
Selected for MCU
NA
(Port A)
with non-mux bus
Address Out
Declare pins only
1
(Port A,B)
Address In
Declare pins only
NA
(Port A,B,C,D)
JTAG ISP
Declare pins only
NA
Table 21. Port Operating Mode Settings
*NA = Not Applicable
9.4.2.1 MCU I/O Mode
In the MCU I/O Mode, the microcontroller uses the PSD9XX ports to expand its own
I/O ports. By setting up the CSIOP space, the ports on the PSD9XX are mapped into the
microcontroller address space. The addresses of the ports are listed in Table 7.
A port pin can be put into MCU I/O mode by writing a ‘0’ to the corresponding bit in the
Control Register. The MCU I/O direction may be changed by writing to the corresponding
bit in the Direction Register. See the subsection on the Direction Register in the “Port
Registers” section. When the pin is configured as an output, the content of the Data Out
Register drives the pin. When configured as an input, the microcontroller can read the port
input through the Data In buffer. See Figure 19.
Ports C and D do not have Control Registers, and are in MCU I/O mode by default. They
can be used for PLD I/O if they are specified in PSDsoft.
9.4.2.2 PLD I/O Mode
The PLD I/O Mode uses a port as an input to the PLDs, and/or as an output from the
GPLD. The corresponding bit in the Direction Register must not be set to ‘1’ if the pin is
defined as a PLD input pin in PSDsoft. The PLD I/O Mode is specified in PSDsoft by
declaring the port pins, and then specifying an equation in PSDsoft.
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PSD913F1V-15B81 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
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