參數(shù)資料
型號： XRM48L950ZWTT
廠商： Texas Instruments
文件頁數(shù)： 135/176頁
文件大?。?/td> 0K
描述： MCU 16/32Bit FLASH 3MB 337NFBGA
標準包裝： 1
系列： Hercules™ ARM® RM4x
應用： 工業(yè)安全，醫(yī)療
核心處理器： ARM? Cortex? - R4F
程序存儲器類型： 閃存（3MB）
控制器系列： RM4
RAM 容量： 256K x 8
接口： CAN，以太網(wǎng)，I²C，LIN，MibSPI，SCI，SPI，USB
輸入/輸出數(shù)： 120
電源電壓： 1.14 V ~ 3.6 V
工作溫度： -40°C ~ 105°C
安裝類型： 表面貼裝
封裝/外殼： 337-LFBGA
包裝： 托盤
供應商設備封裝： 337-NFBGA（16x16）
其它名稱： 296-29390
CPU 1
CPU 2
2cycledelay
CCM-R4
compare
CPU1CLK
CPU2CLK
compare
error
Input+Control
Output+Control
SPNS174A – APRIL 2012 – REVISED SEPTEMBER 2013
4.5.4
Duplicate clock tree after GCLK
The CPU clock domain is split into two clock trees, one for each CPU, with the clock of the 2nd CPU
running at the same frequency and in phase to the clock of CPU1. See Figure 4-3.
4.5.5
ARM Cortex-R4F CPU Compare Module (CCM-R4) for Safety
This device has two ARM Cortex-R4F CPU cores, where the output signals of both CPUs are compared
in the CCM-R4 unit. To avoid common mode impacts the signals of the CPUs to be compared are delayed
in a different way as shown in the figure below.
Figure 4-3. Dual Core Implementation
To avoid an erroneous CCM-R4 compare error, the application software must initialize the registers of
both CPUs before the registers are used, including function calls where the register values are pushed
onto the stack.
4.5.6
CPU Self-Test
The CPU STC (Self-Test Controller) is used to test the two Cortex-R4F CPU Cores using the
Deterministic Logic BIST Controller as the test engine.
The main features of the self-test controller are:
Ability to divide the complete test run into independent test intervals
Capable of running the complete test as well as running few intervals at a time
Ability to continue from the last executed interval (test set) as well as ability to restart from the
beginning (First test set)
Complete isolation of the self-tested CPU core from rest of the system during the self-test run
Ability to capture the Failure interval number
Timeout counter for the CPU self-test run as a fail-safe feature
Copyright 2012–2013, Texas Instruments Incorporated
System Information and Electrical Specifications
61
Product Folder Links: RM48L950 RM48L750 RM48L550
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XRM48L952PGET 功能描述:ARM微控制器 - MCU 16/32B RISC Fl. 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 最大時鐘頻率:72 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
XRM48L952ZWTT 功能描述:ARM微控制器 - MCU 16/32B RISC Fl. 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 最大時鐘頻率:72 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
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