參數(shù)資料
型號(hào)： STR912FAW32H6T
廠商： 意法半導(dǎo)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(wǎng)，USB，加拿大，交流電機(jī)控制，4個(gè)定時(shí)器，模數(shù)轉(zhuǎn)換器，RTC和DMA的
文件頁數(shù)： 12/99頁
文件大?。?/td> 979K
代理商： STR912FAW32H6T
Functional overview
STR91xFAx32 STR91xFAx42 STR91xFAx44
12/99
3
Functional overview
3.1
System-in-a-Package (SiP)
The STR91xFA is a SiP device, comprised of two stacked die. One die is the ARM966E-S
CPU with peripheral interfaces and analog functions, and the other die is the burst Flash.
The two die are connected to each other by a custom high-speed 32-bit burst memory
interface and a serial JTAG test/programming interface.
3.2
Package choice
STR91xFA devices are available in 128-pin (14 x 14 mm) 80-pin (12 x 12 mm) LQFP and
LFBGA144 (10 x 10 mm) packages. Refer to
Table 2
and
Table 3 on page 11
for a list of
available peripherals for each of the package choices.
3.3
ARM966E-S CPU core
The ARM966E-S core inherently has separate instruction and data memory interfaces
(Harvard architecture), allowing the CPU to simultaneously fetch an instruction, and read or
write a data item through two Tightly-Coupled Memory (TCM) interfaces as shown in
Figure 1
. The result is streamlined CPU Load and Store operations and a significant
reduction in cycle count per instruction. In addition to this, a 5-stage pipeline is used to
increase the amount of operational parallelism, giving the most performance out of each
clock cycle.
Ten DSP-enhanced instruction extensions are supported by this core, including single-cycle
execution of 32x16 Multiply-Accumulate, saturating addition/subtraction, and count leading-
zeros.
The ARM966E-S core is binary compatible with 32-bit ARM7 code and 16-bit Thumb
code.
3.4
Burst Flash memory interface
A Burst Flash memory interface (
Figure 1
) has been integrated into the Instruction TCM
(I-TCM) path of the ARM966E-S core. Also in this path is an 8-instruction Pre-Fetch Queue
(PFQ) and a 15-entry Branch Cache (BC), enabling the ARM966E-S core to perform up to
96 MIPS while executing code directly from Flash memory. This architecture provides high
performance levels without a costly instruction SRAM, instruction cache, or external
SDRAM. Eliminating the instruction cache also means interrupt latency is reduced and code
execution becomes more deterministic.
3.4.1
Pre-Fetch Queue (PFQ)
As the CPU core accesses sequential instructions through the I-TCM, the PFQ always looks
ahead and will pre-fetch instructions, taking advantage any idle bus cycles due to variable
length instructions. The PFQ will fetch 32-bits at a time from the Burst Flash memory at a
rate of up to 96 MHz.
相關(guān)PDF資料
PDF描述
STR912FAW32X6 ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
STR912FAW32X6T ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
STR912FAW34H6T ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
STR912FAW34X6T ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
STR912FAW42 ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) 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(fēng)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(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) 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(fēng)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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