参数资料
型号: MC7447AVS867NB
厂商: Freescale Semiconductor
文件页数: 54/56页
文件大小: 0K
描述: IC MPU RISC 867MHZ 360-FCCLGA
标准包装: 44
系列: MPC74xx
处理器类型: 32-位 MPC74xx PowerPC
速度: 867MHz
电压: 1.1V
安装类型: 表面贴装
封装/外壳: 360-CLGA,FCCLGA
供应商设备封装: 360-FCCLGA(25x25)
包装: 托盘
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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