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參數(shù)資料
| 型號： | PSD211R-B-70J |
| 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)場可編程微控制器外圍設(shè)備 |
| 文件頁數(shù)： | 21/51頁 |
| 文件大?。?/td> | 348K |
| 代理商： | PSD211R-B-70J |
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PSD211R Famly
18
12.0
Control Signals
(Cont.)
Internal Signal State
During Power-Down
Component
Internal Signal
PAD A and PAD B
CS0–CS10
Logic 1 (inactive)
CSIOPORT, ES0–ES7
Logic 0 (inactive)
All registers in CSIOPORT address
space, including:
Direction
Data
PMR (turbo bit, ZPSD only)
N/A
All unchanged
Table 7B. Internal States During Power-down
NOTE:
N/A = Not Applicable
12.6 Reset Input
This is an asynchronous input to initialize the PSD device.
Refer to tables 8A and 8B for information on device status during and after reset.
The standard-voltage PSD211R and ZPSD211R (non-V) devices require a reset input. In
this case, the reset input must be asserted for at least 100 nsec. The PSD will be functional
immediately after reset is de-asserted. For these standard-voltage devices, the polarity of
the reset input signal is programmable using PSDsoft (active-high or active-low), to match
the functionality of your MCU reset.
Note: It is not recommended to drive the reset input of the MCU and the reset input of the
PSD with a simple RC circuit between power on ground. The input threshold of the MCU
and the PSD devices may differ, causing the devices to enter and exit reset at different
times because of slow ramping of the signal. This may result in the PSD not being opera-
tional when accessed by the MCU. It is recommended to drive both devices actively. A
supervisory device or a gate with hysteresis is recommended.
For low-voltage ZPSD211RV devices only, the reset input must be asserted for at least
500 nsec. The ZPSD211RV will not be functional for an additional 500 nsec after reset is
de-asserted (see Figure 8). These low voltage ZPSD211RV devices require an active-low
polarity signal for reset. Unlike the PSD211R, the polarity of the reset input is not
programmable for the ZPSD211RV. If your MCU operates with an active high reset, you
must invert this signal before driving the ZPSD211RV reset input.
You must design your system to ensure that the PSD comes out of reset and the PSD
is active before the MCU makes its first access to PSD memory. Depending on the
characteristics and speed of your MCU, a delay between the PSD reset and the MCU reset
may be needed.
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| 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 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD211RB-70J | 功能描述:SPLD - 簡單可編程邏輯器件 U 511-ZPSD301B-70J RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池數(shù)量:10 最大工作頻率:66 MHz 延遲時間: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: |
| PSD211R-B-90JI | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals |
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