MPC7457 datasheet(8/68 Pages) FREESCALE

8 / 68 page

MPC7457 RISC Microprocessor Hardware Specifications, Rev. 5

Freescale Semiconductor

Comparison with the MPC7455, MPC7445, MPC7450, MPC7451, and MPC7441

Out-of-Order Window Size in Execution Queues

SFX integer units

1 entry

× 3 queues

1 entry

× 3 queues

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

Unresolved branches supported

Branch taken penalty (BTIC hit)

Minimum misprediction penalty

Execution Unit Timings (Latency-Throughput)

Aligned load (integer, float, vector)

3-1, 4-1, 3-1

Misaligned load (integer, float, vector)

4-2, 5-2, 4-2

L1 miss, L2 hit latency

9 data/13 instruction

SFX (aDd Sub, Shift, Rot, Cmp, logicals)

1-1

Integer multiply (32

× 8, 32 × 16, 32 × 32)

3-1, 3-1, 4-2

Scalar float

5-1

VSFX (vector simple)

1-1

VCFX (vector complex)

4-1

VFPU (vector float)

4-1

VPER (vector permute)

2-1

MMUs

TLBs (instruction and data)

128-entry, 2-way

Tablewalk mechanism

Hardware + software

Instruction BATs/data BATs

8/8

4/4

L1 I Cache/D Cache Features

Size

32K/32K

Associativity

8-way

Locking granularity

Way

Table 1. Microarchitecture Comparison (continued)

Microarchitectural Specs

MPC7457/MPC7447

MPC7455/MPC7445

MPC7450/MPC7451/

MPC7441

MPC7457 Arkusz danych(PDF) 8 Page - Freescale Semiconductor, Inc

MPC7457 Arkusz danych(HTML) 8 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

Arkusz danych Pobierz

Link URL