MPC8313CVRAFD datasheet(11/100 Pages) FREESCALE

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MPC8313E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 2.1

Freescale Semiconductor

Power Characteristics

Table 5 describes a typical scenario where blocks with the stated percentage of utilization and impedances

consume the amount of power described.

Table 6 shows the estimated core power dissipation of the MPC8313E while transitioning into the

D3 warm low-power state.

Table 5. MPC8313E Typical I/O Power Dissipation

Interface

Parameter

GVDD

(1.8 V)

GVDD

(2.5 V)

NVDD

(3.3 V)

LVDDA/

LVDDB

(3.3 V)

LVDDA/

LVDDB

(2.5 V)

LVDD

(3.3 V)

Unit

Comments

DDR 1, 60% utilization,

50% read/write

Rs = 22 Ω

Rt = 50 Ω

single pair of clock

capacitive load: data = 8 pF,

control address = 8 pF,

clock = 8 pF

333 MHz,

32 bits

—

0.355

——

—

266 MHz,

32 bits

—

0.323

——

—

DDR 2, 60% utilization,

50% read/write

Rs = 22 Ω

Rt = 75 Ω

single pair of clock

capacitive load: data = 8 pF,

control address = 8 pF,

clock = 8 pF

333 MHz,

32 bits

0.266

—

266 MHz,

32 bits

0.246

—

PCI I/O load = 50 pF

33 MHz

—

0.120

—

66 MHz

—

0.249

—

Local bus I/O load = 20 pF

66 MHz

—

0.056

—

50 MHz

—

0.040

—

TSEC I/O load = 20 pF

MII,

25 MHz

—

0.008

—

Multiple by

number of

interface

used

RGMII,

125 MHz

—

0.078

0.044

—

USBDR controller load = 20 pF

60 MHz

—

0.078

—

Other I/O

—

0.015

—

Table 6. MPC8313E Low-Power Modes Power Dissipation1

1 All interfaces are enabled. For further power savings, disable the clocks to unused

blocks.

333-MHz Core, 167-MHz CSB2

2 The interfaces are run at the following frequencies: DDR: 333 MHz, eLBC 83 MHz,

PCI 33 MHz, eTSEC1 and TSEC2: 167 MHz, SEC: 167 MHz, USB: 167 MHz. See

the SCCR register for more information.

Rev. 1.0 3

3 This is maximum power in D3 Warm based on a voltage of 1.05 V and a junction

temperature of 105

°C.

Rev. 2.x or

Later3

Unit

D3 warm

400

425

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