MPC7447 Ver la hoja de datos (PDF) - Freescale Semiconductor

Número de pieza

componentes Descripción

Fabricante

MPC7447

RISC Microprocessor Hardware Specifications

Freescale Semiconductor 

Comparison with the MPC7447A, MPC7447, MPC7445, and MPC7441

Table 1. Microarchitecture Comparison (continued)

Microarchitectural Specs

MPC7448 MPC7447A MPC7447 MPC7445 MPC7441

Execution Unit Timings (Latency-Throughput)

Aligned load (integer, float, vector)

Misaligned load (integer, float, vector)

L1 miss, L2 hit latency with ECC (data/instruction)

L1 miss, L2 hit latency without ECC (data/instruction)

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)

12/16

11/15

3-1, 4-1, 3-1

4-2, 5-2, 4-2

—

9/13

1-1

4-1, 4-1, 5-2

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

8/8

8/8

8/8

4/4

L1 I Cache/D Cache Features

Size

Associativity

Locking granularity

Parity on I cache

Parity on D cache

Number of D cache misses (load/store)

Data stream touch engines

32K/32K

8-way

Way

Word

Byte

5/2

5/1

4 streams

On-Chip Cache Features

Cache level

Size/associativity

Access width

Number of 32-byte sectors/line

Parity tag

Parity data

Data ECC

1-Mbyte/

8-way

2

Byte

Byte

64-bit

L2

512-Kbyte/8-way

256-Kbyte/8-way

256 bits

2

Byte

Byte

—

Thermal Control

Dynamic frequency switching divide-by-two mode

Dynamic frequency switching divide-by-four mode

Thermal diode

Yes

Yes

No

No

No

Yes

No

No

No

No

Yes

Yes

No

No

No

MPC7448 RISC Microprocessor Hardware Specifications, Rev. 4

8

Freescale Semiconductor

Share Link: