參數(shù)資料
型號(hào)： MC7448THX1000ND
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 1000 MHz, RISC PROCESSOR, CBGA360
封裝： 25 X 25 MM, 2.40 MM HEIGHT, 1.27 MM PITC, CERAMIC, BGA-360
文件頁(yè)數(shù)： 23/66頁(yè)
文件大?。?/td> 793K
代理商： MC7448THX1000ND
MPC7448 RISC Microprocessor Hardware Specifications, Rev. 4
Freescale Semiconductor
3
Features
2Features
This section summarizes features of the MPC7448 implementation.
Major features of the MPC7448 are as follows:
High-performance, superscalar microprocessor
— Up to four instructions can be fetched from the instruction cache at a time.
— Up to three instructions plus a branch instruction can be dispatched to the issue queues at a
time.
— Up to 12 instructions can be in the instruction queue (IQ).
— Up to 16 instructions can be at some stage of execution simultaneously.
— Single-cycle execution for most instructions
— One instruction per clock cycle throughput for most instructions
— Seven-stage pipeline control
Eleven independent execution units and three register files
— Branch processing unit (BPU) features static and dynamic branch prediction
– 128-entry (32-set, four-way set-associative) branch target instruction cache (BTIC), a cache
of branch instructions that have been encountered in branch/loop code sequences. If a target
instruction is in the BTIC, it is fetched into the instruction queue a cycle sooner than it can
be made available from the instruction cache. Typically, a fetch that hits the BTIC provides
the first four instructions in the target stream.
– 2048-entry branch history table (BHT) with 2 bits per entry for four levels of
prediction—not taken, strongly not taken, taken, and strongly taken
– Up to three outstanding speculative branches
– Branch instructions that do not update the count register (CTR) or link register (LR) are
often removed from the instruction stream.
– Eight-entry link register stack to predict the target address of Branch Conditional to Link
Register (bclr) instructions
— Four integer units (IUs) that share 32 GPRs for integer operands
– Three identical IUs (IU1a, IU1b, and IU1c) can execute all integer instructions except
multiply, divide, and move to/from special-purpose register instructions.
– IU2 executes miscellaneous instructions, including the CR logical operations, integer
multiplication and division instructions, and move to/from special-purpose register
instructions.
— Five-stage FPU and 32-entry FPR file
– Fully IEEE Std. 754-1985–compliant FPU for both single- and double-precision
operations
– Supports non-IEEE mode for time-critical operations
– Hardware support for denormalized numbers
– Thirty-two 64-bit FPRs for single- or double-precision operands
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC7448THX1000NX 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Hardware Specifications Addendum for the MC7448T xxnnnnmx Series
MC7448THX1267NC 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Hardware Specifications Addendum for the MC7448T xxnnnnmx Series
MC7448THX1267ND 功能描述:微處理器 - MPU A8 RV2.2.1 1.1V -40/105C 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
MC7448THX1267NX 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Hardware Specifications Addendum for the MC7448T xxnnnnmx Series
MC7448THX1400ND 功能描述:微處理器 - MPU A8 RV2.2.1 1.1V -40/105C 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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