MPC7457(2004) Ver la hoja de datos (PDF) - Freescale Semiconductor
Número de pieza
componentes Descripción
Fabricante
MPC7457 Datasheet PDF : 68 Pages
| |||
Comparison with the MPC7455, MPC7445, MPC7450, MPC7451, and MPC7441
Table 1. Microarchitecture Comparison (continued)
Microarchitectural Specs
MPC7457/MPC7447
MPC7455/MPC7445
Out-of-Order Window Size in Execution Queues
SFX integer units
Vector units
Scalar floating-point unit
1 entry × 3 queues
In order, 4 queues
In order
1 entry × 3 queues
In order, 4 queues
In order
Branch Processing Resources
Prediction structures
BTIC size, associativity
BHT size
Link stack depth
Unresolved branches supported
Branch taken penalty (BTIC hit)
Minimum misprediction penalty
BTIC, BHT, link stack
128-entry, 4-way
2K-entry
8
3
1
6
BTIC, BHT, link stack
128-entry, 4-way
2K-entry
8
3
1
6
Execution Unit Timings (Latency-Throughput)
Aligned load (integer, float, vector)
Misaligned load (integer, float, vector)
L1 miss, L2 hit latency
SFX (aDd Sub, Shift, Rot, Cmp, logicals)
Integer multiply (32 × 8, 32 × 16, 32 × 32)
Scalar float
VSFX (vector simple)
VCFX (vector complex)
VFPU (vector float)
VPER (vector permute)
3-1, 4-1, 3-1
4-2, 5-2, 4-2
9 data/13 instruction
1-1
3-1, 3-1, 4-2
5-1
1-1
4-1
4-1
2-1
3-1, 4-1, 3-1
4-2, 5-2, 4-2
9 data/13 instruction
1-1
3-1, 3-1, 4-2
5-1
1-1
4-1
4-1
2-1
MMUs
TLBs (instruction and data)
Tablewalk mechanism
Instruction BATs/data BATs
128-entry, 2-way
Hardware + software
8/8
128-entry, 2-way
Hardware + software
8/8
L1 I Cache/D Cache Features
Size
Associativity
Locking granularity
32K/32K
8-way
Way
32K/32K
8-way
Way
MPC7450/MPC7451/
MPC7441
1 entry × 3 queues
In order, 4 queues
In order
BTIC, BHT, link stack
128-entry, 4-way
2K-entry
8
3
1
6
3-1, 4-1, 3-1
4-2, 5-2, 4-2
9 data/13 instruction
1-1
3-1, 3-1, 4-2
5-1
1-1
4-1
4-1
2-1
128-entry, 2-way
Hardware + software
4/4
32K/32K
8-way
Way
MPC7457 RISC Microprocessor Hardware Specifications, Rev. 5
8
Freescale Semiconductor
Share Link: 