MPC8313E datasheet(49/92 Pages) FREESCALE

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MPC8313E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 1

Freescale Semiconductor

Timers

Figure 35 shows the PCI output AC timing conditions.

Figure 35. PCI Output AC Timing Measurement Condition

14 Timers

This section describes the DC and AC electrical specifications for the timers.

14.1

Timers DC Electrical Characteristics

Table 51 provides the DC electrical characteristics for the MPC8313E timers pins, including TIN, TOUT,

TGATE, and RTC_CLK.

14.2

Timers AC Timing Specifications

Table 52 provides the Timers input and output AC timing specifications.

Table 51. Timers DC Electrical Characteristics

Characteristic

Symbol

Condition

Min

Max

Unit

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

Input high voltage

VIH

—2.1

NVDD +0.3

Input low voltage

VIL

—

–0.3

0.8

Input current

IIN

0 V

≤ VIN ≤ NVDD

—

± 5

μA

Table 52. Timers Input AC Timing Specifications 1

Characteristic

Symbol 2

Min

Unit

Timers inputs—minimum pulse width

tTIWID

Notes:

1. Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of SYS_CLK_IN.

Timings are measured at the pin.

2. Timers inputs and outputs are asynchronous to any visible clock. Timers outputs should be synchronized before use by any

external synchronous logic. Timers inputs are required to be valid for at least tTIWID ns to ensure proper operation

CLK

Output Delay

tPCKHOV

High-Impedance

tPCKHOZ

Output

tPCKHOX

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