- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45250 > MC7457RX867NC (FREESCALE SEMICONDUCTOR INC) 32-BIT, 867 MHz, RISC PROCESSOR, CBGA483 PDF資料下載
參數(shù)資料
| 型號： | MC7457RX867NC |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 867 MHz, RISC PROCESSOR, CBGA483 |
| 封裝： | 29 X 29 MM, 3.22 MM HEIGHT, 1.27 MM PITCH, CERAMIC, BGA-483 |
| 文件頁數(shù)： | 12/73頁 |
| 文件大?。?/td> | 1715K |
| 代理商： | MC7457RX867NC |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁當前第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁
MPC7457 RISC Microprocessor Hardware Specifications, Rev. 7
2
Freescale Semiconductor
Features
high-bandwidth interface. The MPC7447 is identical to the MPC7457 except that it does not support the
L3 cache interface.
Figure 1 shows a block diagram of the MPC7457. The core is a high-performance superscalar design
supporting a double-precision floating-point unit and a SIMD multimedia unit.
The memory storage subsystem supports the MPX bus protocol and a subset of the 60x bus protocol to
main memory and other system resources. The L3 interface supports 1, 2, or 4 Mbytes of external SRAM
for L3 cache and/or private memory data. For systems implementing 4 Mbytes of SRAM, a maximum of
2 Mbytes may be used as cache; the remaining 2 Mbytes must be private memory.
Note that the MPC7457 is a footprint-compatible, drop-in replacement in a MPC7455 application if the
core power supply is 1.3 V.
2Features
This section summarizes features of the MPC7457 implementation of the PowerPC architecture.
Major features of the MPC7457 are as follows:
High-performance, superscalar microprocessor
— As many as four instructions can be fetched from the instruction cache at a time.
— As many as three instructions can be dispatched to the issue queues at a time.
— As many as 12 instructions can be in the instruction queue (IQ).
— As many as 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 (BHT) with 2 bits per entry for 4 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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC7457VG867NC | 32-BIT, 867 MHz, RISC PROCESSOR, CBGA483 |
| MC7457RX1267LC | 32-BIT, 1267 MHz, RISC PROCESSOR, CBGA483 |
| MC7457VG733NC | 32-BIT, 733 MHz, RISC PROCESSOR, CBGA483 |
| MC74ACT125DR2 | ACT SERIES, QUAD 1-BIT DRIVER, TRUE OUTPUT, PDSO14 |
| MC74AC125DR2 | AC SERIES, QUAD 1-BIT DRIVER, TRUE OUTPUT, PDSO14 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC7457TRX1000LC | 制造商:Freescale Semiconductor 功能描述:MPC74XX RISC 32-BIT 0.13UM 1GHZ 1.5V/1.8V/2.5V 483-PIN FCCBG - Trays |
| MC7457TRX1000NC | 功能描述:微處理器 - MPU APOLO7 RV1.2 1.1V -40C 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 最大時鐘頻率:536 MHz 程序存儲器大小: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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MC7457TRX1267LC | 制造商:Freescale Semiconductor 功能描述:MPC74XX RISC 32-BIT 0.13UM 1.267GHZ 1.5V/1.8V/2.5V 483-PIN F - Trays |
| MC7457VG1000LC | 功能描述:微處理器 - MPU APOLO7 RV1.2 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 最大時鐘頻率:536 MHz 程序存儲器大小: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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MC7457VG1000NC | 功能描述:微處理器 - MPU APOLO7 RV1.2 1.1V 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 最大時鐘頻率:536 MHz 程序存儲器大小: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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
發(fā)布緊急采購，3分鐘左右您將得到回復。