參數(shù)資料
型號: MC7447AVS1420LB
廠商: Freescale Semiconductor
文件頁數(shù): 54/56頁
文件大?。?/td> 0K
描述: IC MPU RISC 1420MHZ 360-FCCLGA
標準包裝: 44
系列: MPC74xx
處理器類型: 32-位 MPC74xx PowerPC
速度: 1.42GHz
電壓: 1.3V
安裝類型: 表面貼裝
封裝/外殼: 360-CLGA,F(xiàn)CCLGA
供應商設備封裝: 360-FCCLGA(25x25)
包裝: 托盤
MPC7447A RISC Microprocessor Hardware Specifications, Rev. 5
Freescale Semiconductor
7
Comparison with the MPC7447, MPC7445, and MPC7441
— IEEE 1149.1 JTAG interface
— Array built-in self test (ABIST)—factory test only
Reliability and serviceability
— Parity checking on system bus
— Parity checking on the L1 and L2 caches
3
Comparison with the MPC7447, MPC7445, and
MPC7441
Table 1 compares the key features of the MPC7447A with the key features of the earlier MPC7447,
MPC7445, and MPC7441. All are based on the MPC7450 RISC microprocessor and are very similar
architecturally. The MPC7447A is identical to the MPC7447 but includes the DFS and temperature diode
features.
Table 1. Microarchitecture Comparison
Microarchitectural Specs
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
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