参数资料
型号: PSD4235F1-C-90MI
厂商: 意法半导体
英文描述: Flash In-System-Programmable Peripherals for 16-Bit MCUs
中文描述: Flash在系统可编程外设的16位微控制器
文件页数: 51/93页
文件大小: 503K
代理商: PSD4235F1-C-90MI
PSD4000 Series
Preliminary Information
48
Control
Register
Setting
Direction
Register
Setting
VM
Defined In
PSDsoft
Register
Setting
Mode
Declare
pins only
0
1= output,
0= input
MCU I/O
(Note 1)
NA
Declare pins
and logic or chip
select equations
PLD I/O
NA
NA
Data Port
(Port F, G)
Selected for
MCU with
non-mux bus
NA
NA
NA
Address Out
(Port E, F, G)
Declare
pins only
1
1
NA
Address In
(Port A,B,C,D,F)
Declare pins
NA
NA
NA
JTAG ISP
Declare pins
only
NA
NA
NA
MCU Reset
Mode
Specify pin
logic level
NA
NA
NA
Table 17. Port Operating Mode Settings
*
NA = Not Applicable
NOTE:
1. Control Register setting is not applicable to Ports A, B and C.
9.4.2.1 MCU I/OMode
In the MCU I/O Mode, the microcontroller uses the PSD4000 ports to expand its own
I/O ports. By setting up the CSIOP space, the ports on the PSD4000 are mapped into the
microcontroller address space. The addresses of the ports are listed in Table 6.
A port pin can be put into MCU I/O mode by writing a
0
to the corresponding bit in the
Control Register (Port E, F and G). 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 20.
Ports A, B and C 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/OMode
The PLD I/O Mode uses a port as an input to the CPLD
s Input Micro
Cells, 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.
The
PSD4000
Functional
Blocks
(cont.)
相关PDF资料
PDF描述
PSD4235F1-C-90U Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235F1-C-90UI Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235F2-15UI Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235F2-70UI Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235F2-90B81 Flash In-System-Programmable Peripherals for 16-Bit MCUs
相关代理商/技术参数
参数描述
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PSD4235G2-90UI 功能描述:CPLD - 复杂可编程逻辑器件 5.0V 4M 90ns RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100
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PSD4235G2V-90U 功能描述:CPLD - 复杂可编程逻辑器件 3.3V 4M 90ns RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100