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參數資料
| 型號： | STR912FAW32H6T |
| 廠商： | 意法半導體 |
| 英文描述： | ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| 中文描述： | ARM966E -虜⑩16/32位閃存微控制器與以太網，USB，加拿大，交流電機控制，4個定時器，模數轉換器，RTC和DMA的 |
| 文件頁數： | 38/99頁 |
| 文件大小： | 979K |
| 代理商： | STR912FAW32H6T |
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Functional overview
STR91xFAx32 STR91xFAx42 STR91xFAx44
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high data bytes respectively. The output signal EMI_RDn is the read strobe for both the
low and high data bytes.
8-bit multiplexed data mode
: This is a variant of the 16-bit multiplexed mode.
Although this mode can provide 24 bits of address and 8 bits of data, it does require an
external latch device on Port 8. However, this mode is most efficient when connecting
devices that only require 8 bits of address on an 8-bit multiplexed address/data bus,
and have simple read, write, and latch inputs as shown in
Figure 5
●
To use all 24 address bits, the following applies: 8 bits of lowest-order data and 8 bits of
lowest-order address are multiplexed on port 8. On port 9, 8-bits of mid-order address are
multiplexed with 8 bits of data, but these 8 data values are always at logic zero on this port
during a write operation, and these 8 data bits are ignored during a read operation. An
external latch device (such as a ‘373 latch) is needed to de-multiplex the mid-order 8
address bits that are generated on port 8. Port 7 outputs the 8 highest-order address signals
directly (not multiplexed). The output signal on pin EMI_ALE is used to demultiplex the
signals on ports 8 and 9, and the polarity of EMI_ALE is programmable. The output signal
on pin EMI_BWR_WRLn is the data write strobe, and the output on pin EMI_RDn is the data
read strobe.
8-bit non-multiplexed data mode
(
Figure 6
): Eight bits of data are on port 8, while 16
bits of address are output on ports 7 and 9. The output signal on pin EMI_BWR_BWLn
is the data write strobe and the output on pin EMI_RDn is the data read strobe.
Burst Mode Support (LFBGA package only):
The EMI bus supports synchronized
burst read and write bus cycle in multiplexed and non-multiplexed mode. The additional
EMI signals in the LFBGA package that support the burst mode are:
–
EMI_BCLK -the bus clock output. The EMI_BCLK has the same frequency or half
of that of the HCLK and can be disabled by the user
–
EMI_WAITn - the not ready or wait input signal for synchronous access
–
EMI_BAAn - burst address advance or burst enable signal
–
EMI_WEn - write enable signal
–
EMI_UBn, EMI_LBn - upper byte and lower byte enable signals. These two signals
share the same pins as the EMI_WRLn and EMI_WRHn and are user configurable
through the EMI register.
By defining the bus parameters such as burst length, burst type, read and write timings
in the EMI control registers, the EMI bus is able to interface to standard burst memory
devices. The burst timing specification and waveform will be provided in the next data
sheet release
●
●
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相關代理商/技術參數 |
參數描述 |
|---|---|
| STR912FAW32X6 | 功能描述:ARM微控制器 - MCU ARM7TDMI 32-Bit Flash Based MCU RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數據總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數據 RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風格:SMD/SMT |
| STR912FAW32X6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| STR912FAW34H6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| STR912FAW34X6 | 功能描述:ARM微控制器 - MCU ARM966E S 16/32B Flash MCU RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數據總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數據 RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風格:SMD/SMT |
| STR912FAW34X6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
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