參數(shù)資料
型號(hào)： MPC755BRX300LX
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 300 MHz, RISC PROCESSOR, CBGA360
封裝： 25 X 25 MM, 3.20 MM HEIGHT, 1.27 MM PITCH, CERAMIC, BGA-360
文件頁數(shù)： 33/48頁
文件大?。?/td> 1265K
代理商： MPC755BRX300LX
MPC755 RISC Microprocessor Hardware Specifications
39
System Design Information
The common on-chip processor (COP) function of PowerPC processors allows a remote computer system
(typically a PC with dedicated hardware and debugging software) to access and control the internal
operations of the processor. The COP interface connects primarily through the JTAG port of the processor,
with some additional status monitoring signals. The COP port requires the ability to independently assert
HRESET or TRST in order to fully control the processor. If the target system has independent reset sources,
such as voltage monitors, watchdog timers, power supply failures, or push-button switches, then the COP
reset signals must be merged into these signals with logic.
The arrangement shown in Figure 25 allows the COP to independently assert HRESET or TRST, while
ensuring that the target can drive HRESET as well. The pull-down resistor on TRST ensures that the JTAG
scan chain is initialized during power-on if a JTAG interface cable is not attached; if it is, it is responsible
for driving TRST when needed.
Figure 25 shows the suggested TRST connection.
Figure 25. Suggested TRST Connection
The COP header shown in Figure 25 adds many benefits—breakpoints, watchpoints, register and memory
examination/modification, and other standard debugger features are possible through this interface—and
can be as inexpensive as an unpopulated footprint for a header to be added when needed.
The COP interface has a standard header for connection to the target system, based on the 0.025"
square-post 0.100" centered header assembly (often called a “Berg” header). The connector typically has
pin 14 removed as a connector key.
Figure 26 shows the COP connector diagram.
MPC755
HRESET
TRST
From Target
Board
Sources
COP Header
2 k
QACK
2 k
相關(guān)PDF資料
PDF描述
MPC745BPX400LX 32-BIT, 400 MHz, RISC PROCESSOR, PBGA255
MPC755BPX300LX 32-BIT, 300 MHz, RISC PROCESSOR, PBGA360
MPC755BRX400LX 32-BIT, 400 MHz, RISC PROCESSOR, CBGA360
MPC755BRX450LE 32-BIT, 450 MHz, RISC PROCESSOR, CBGA360
MPC755CPX400 32-BIT, 400 MHz, RISC PROCESSOR, PBGA360
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC755BRX350LE 功能描述:微處理器 - MPU 360CBGA,RV2.8,HIP4DP RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC755BRX350TE 功能描述:微處理器 - MPU 360CBGA,RV2.8,HIP4DP RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC755BVT300LE 功能描述:微處理器 - MPU RV2.8106C RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC755BVT350LE 功能描述:微處理器 - MPU RV2.8,106C RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC755CPX350LE 功能描述:微處理器 - MPU 360PBGA,RV2.8,6W RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
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