參數(shù)資料
型號(hào)： MC7448HX1420LD
廠商： Freescale Semiconductor
文件頁(yè)數(shù)： 23/60頁(yè)
文件大?。?/td> 0K
描述： IC MPU RISC 32BIT 360-FCCBGA
標(biāo)準(zhǔn)包裝： 1
系列： MPC74xx
處理器類(lèi)型： 32-位 MPC74xx PowerPC
速度： 1.42GHz
電壓： 1.2V
安裝類(lèi)型： 表面貼裝
封裝/外殼： 360-BCBGA，F(xiàn)CCBGA
供應(yīng)商設(shè)備封裝： 360-FCCBGA（25x25）
包裝： 托盤(pán)
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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MC7448HX1600LC 功能描述:IC MPU RISC 32BIT 360-FCCBGA RoHS:否 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC74xx 標(biāo)準(zhǔn)包裝:1 系列:MPC85xx 處理器類(lèi)型:32-位 MPC85xx PowerQUICC III 特點(diǎn):- 速度:1.2GHz 電壓:1.1V 安裝類(lèi)型:表面貼裝 封裝/外殼:783-BBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:783-FCPBGA（29x29） 包裝:托盤(pán)
MC7448HX1600LD 功能描述:微處理器 - MPU APL8 RV2.2.1 1.25V 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(lèi)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
MC7448HX1700LC 功能描述:IC MPU RISC 32BIT 360-FCCBGA RoHS:否 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC74xx 標(biāo)準(zhǔn)包裝:1 系列:MPC85xx 處理器類(lèi)型:32-位 MPC85xx PowerQUICC III 特點(diǎn):- 速度:1.2GHz 電壓:1.1V 安裝類(lèi)型:表面貼裝 封裝/外殼:783-BBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:783-FCPBGA（29x29） 包裝:托盤(pán)
MC7448HX1700LD 功能描述:微處理器 - MPU APL8 RV2.2.1 1.3V 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(lèi)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
MC7448HX600N 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:MPC7448 Hardware Specifications
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