參數(shù)資料
型號(hào)： PSD4235G2-90UT
廠商： STMICROELECTRONICS
元件分類(lèi)： 微控制器/微處理器
英文描述： 256K X 16 FLASH, 52 I/O, PIA-GENERAL PURPOSE, PQFP80
封裝： PLASTIC, TQFP-80
文件頁(yè)數(shù)： 58/100頁(yè)
文件大?。?/td> 933K
代理商： PSD4235G2-90UT
PSD4235G2
60/100
MCU I/O Mode
In the MCU I/O mode, the MCU uses the PSD
Ports to expand its own I/O ports. By setting up the
CSIOP space, the ports on the PSD are mapped
into the MCU 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 Regis-
ter (for Ports E, F and G). The MCU I/O direction
may be changed by writing to the corresponding
bit in the Direction Register, or by the output en-
able product term. See the section entitled “Port
configured as an output, the content of the Data
Out Register drives the pin. When configured as
an input, the MCU can read the port input through
the Data In buffer. See Figure 27.
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
Express.
PLD I/O Mode
The PLD I/O Mode uses a port as an input to the
CPLD’s Input Macrocells (IMC), and/or as an out-
put from the CPLD’s Output Macrocells (OMC).
The output can be tri-stated with a control signal.
This output enable control signal can be defined
by a product term from the PLD, or by resetting the
corresponding bit in the Direction Register to ’0’.
The corresponding bit in the Direction Register
must not be set to ’1’ if the pin is defined for a PLD
input signal in PSDsoft Express. The PLD I/O
mode is specified in PSDsoft Express by declaring
the port pins, and then specifying an equation in
PSDsoft Express.
Address Out Mode
For MCUs with a multiplexed address/data bus,
Address Out mode can be used to drive latched
addresses onto the port pins. These port pins can,
in turn, drive external devices. Either the output
enable or the corresponding bits of both the Direc-
tion Register and Control Register must be set to
a ’1’ for pins to use Address Out mode. This must
be done by the MCU at run-time. See Table 41 for
the address output pin assignments on Ports E, F
and G for various MCUs.
Note: Do not drive address signals with Address
Out Mode to an external memory device if it is in-
tended for the MCU to Boot from the external de-
vice. The MCU must first Boot from PSD memory
so the Direction and Control register bits can be
set.
Table 39. Port Operating Modes
Note: 1. Can be multiplexed with other I/O functions.
2. Available to Motorola 16-bit 683xx and HC16 families of MCUs.
Port Mode
Port A
Port B
Port C
Port D
Port E
Port F
Port G
MCU I/O
Yes
PLD I/O
McellA Outputs
McellB Outputs
Additional Ext. CS Outputs
PLD Inputs
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Address Out
No
Yes (A7 - 0)
or (A15 - 8)
Address In
Yes
No
Yes
No
Data Port
No
Yes
Peripheral I/O
Yes
No
Yes
No
Yes
No
JTAG ISP
No
Yes1
No
MCU Reset Mode2
No
Yes
相關(guān)PDF資料
PDF描述
PSD4256G6V-10UIT 1M X 8 FLASH, 52 I/O, PIA-GENERAL PURPOSE, PQFP80
PSD6407 POSITION SENSITIVE DETECTOR
PSD813F2-15JT 128K X 8 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQCC52
PSD813F5V-20MT 128K X 8 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQFP52
PSD853F2-15JIT 128K X 8 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQCC52
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD4235G2V-12UI 功能描述:CPLD - 復(fù)雜可編程邏輯器件 3.3V 4M 120ns RoHS:否 制造商:Lattice 系列: 存儲(chǔ)類(lèi)型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)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
PSD4235G2V-90U 功能描述:CPLD - 復(fù)雜可編程邏輯器件 3.3V 4M 90ns RoHS:否 制造商:Lattice 系列: 存儲(chǔ)類(lèi)型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)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
PSD4256G6V-10UI 功能描述:CPLD - 復(fù)雜可編程邏輯器件 3.3V 8M 100ns RoHS:否 制造商:Lattice 系列: 存儲(chǔ)類(lèi)型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)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
PSD4-36 制造商:Tamura Corporation of America 功能描述:
PSD-45 制造商:MEANWELL 制造商全稱(chēng):Mean Well Enterprises Co., Ltd. 功能描述:45W DC-DC Single Output Switching Power Supply
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*