參數(shù)資料
型號: MC7448VU667NC
廠商: Freescale Semiconductor
文件頁數(shù): 58/60頁
文件大?。?/td> 0K
描述: IC MPU RISC 32BIT 360-FCCBGA
標準包裝: 44
系列: MPC74xx
處理器類型: 32-位 MPC74xx PowerPC
速度: 667MHz
電壓: 1V
安裝類型: 表面貼裝
封裝/外殼: 360-CBGA,F(xiàn)CCBGA
供應(yīng)商設(shè)備封裝: 360-FCCBGA(25x25)
包裝: 托盤
MPC7448 RISC Microprocessor Hardware Specifications, Rev. 4
Freescale Semiconductor
7
Comparison with the MPC7447A, MPC7447, MPC7445, and MPC7441
Reliability and serviceability
— Parity checking on system bus
— Parity checking on the L1 caches and L2 data tags
— ECC or parity checking on L2 data
3
Comparison with the MPC7447A, MPC7447, MPC7445,
and MPC7441
Table 1 compares the key features of the MPC7448 with the key features of the earlier MPC7447A,
MPC7447, MPC7445, and MPC7441. All are based on the MPC7450 RISC microprocessor and are
architecturally very similar. The MPC7448 is identical to the MPC7447A, but the MPC7448 supports 1
Mbyte of L2 cache with ECC and the use of dynamic frequency switching (DFS) with more bus-to-core
ratios.
Table 1. Microarchitecture Comparison
Microarchitectural Specs
MPC7448
MPC7447A MPC7447 MPC7445 MPC7441
Basic Pipeline Functions
Logic inversions per cycle
18
Pipeline stages up to execute
5
Total pipeline stages (minimum)
7
Pipeline maximum instruction throughput
3 + branch
Pipeline Resources
Instruction buffer size
12
Completion buffer size
16
Renames (integer, float, vector)
16, 16, 16
Maximum Execution Throughput
SFX
3
Vector
2 (any 2 of 4 units)
Scalar floating-point
1
Out-of-Order Window Size in Execution Queues
SFX integer units
1 entry
× 3 queues
Vector units
In order, 4 queues
Scalar floating-point unit
In order
Branch Processing Resources
Prediction structures
BTIC, BHT, link stack
BTIC size, associativity
128-entry, 4-way
BHT size
2K-entry
Link stack depth
8
Unresolved branches supported
3
Branch taken penalty (BTIC hit)
1
Minimum misprediction penalty
6
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MC7448VU867NC 功能描述:IC MPU RISC 32BIT 360-FCCBGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC74xx 標準包裝:1 系列:MPC85xx 處理器類型:32-位 MPC85xx PowerQUICC III 特點:- 速度:1.2GHz 電壓:1.1V 安裝類型: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