MPC8315CVRADDA datasheet(17/106 Pages) FREESCALE

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MPC8315E PowerQUICC II Pro Processor Hardware Specifications, Rev. 2

Freescale Semiconductor

RESET Initialization

This section describes the DC and AC electrical specifications for the reset initialization timing and

electrical requirements of the MPC8315E.

6.1

RESET DC Electrical Characteristics

This table provides the DC electrical characteristics for the RESET pins of the MPC8315E.

6.2

RESET AC Electrical Characteristics

This table provides the reset initialization AC timing specifications of the MPC8315E.

Table 8. RESET Pins DC Electrical Characteristics

Characteristic

Symbol

Condition

Min

Max

Unit

Input high voltage

VIH

—

2.0

NVDD + 0.3

Input low voltage

VIL

—–0.3

0.8

Input current

IIN

0 V

 V

IN NVDD

—

±5

A

Output high voltage

VOH

IOH = –8.0 mA

2.4

—

Output low voltage

VOL

IOL = 8.0 mA

—

0.5

Output low voltage

VOL

IOL = 3.2 mA

—

0.4

Table 9. RESET Initialization Timing Specifications

Parameter/Condition

Min

Max

Unit

Note

Required assertion time of HRESET to activate reset flow

—

tPCI_SYNC_IN

Required assertion time of PORESET with stable clock applied to SYS_CLK_IN

when the device is in PCI host mode

—

tSYS_CLK_IN

Required assertion time of PORESET with stable clock applied to PCI_SYNC_IN

when the device is in PCI agent mode

—

tPCI_SYNC_IN

HRESET assertion (output)

512

—

tPCI_SYNC_IN

Input setup time for POR configuration signals (CFG_RESET_SOURCE[0:3] and

CFG_SYS_CLKIN_DIV) with respect to negation of PORESET when the device is

in PCI host mode

4—

tSYS_CLK_IN

2, 4

Input setup time for POR configuration signals (CFG_RESET_SOURCE[0:3] and

CFG_SYS_CLKIN_DIV) with respect to negation of PORESET when the device is

in PCI agent mode

4—

tPCI_SYNC_IN

Input hold time for POR configuration signals with respect to negation of HRESET

0—

—

Time for the device to turn off POR configuration signals with respect to the

assertion of HRESET

—4

Time for the device to turn on POR config signals with respect to the negation of

HRESET

1—

tPCI_SYNC_IN

1, 3

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