MPC8610EC datasheet(48/96 Pages) NXP

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MPC8610 Integrated Host Processor Hardware Specifications, Rev. 2

Electrical Characteristics

Freescale Semiconductor

2.13

Global Timer Module

This section describes the DC and AC electrical specifications for the global timer module (GTM) of the MPC8610.

2.13.1

GTM DC Electrical Characteristics

Table 39 provides the DC electrical characteristics for the MPC8610 global timer module pins, including GTMn_TINn,

GTMn_TOUTn, GTMn_TGATEn, and RTC.

2.13.2

GTM AC Timing Specifications

Table 40 provides the GTM input and output AC timing specifications.

Figure 21 provides the AC test load for the GTM.

Figure 21. GTM AC Test Load

Table 39. GTM DC Electrical Characteristics

Parameter

Symbol

Min

Max

Unit

High-level input voltage

VIH

2OVDD + 0.3

Low-level input voltage

VIL

–0.3

0.8

Input current (VIN

1 = 0 V or V

IN = VDD)IIN

—±5

μA

High-level output voltage (OVDD = min, IOH = –100 μA)

VOH

OVDD – 0.2

—

Low-level output voltage (OVDD = min, IOL = 100 μA)

VOL

—0.2

Note:

1. The symbol VIN, in this case, represents the OVIN symbol referenced in Table 2 and Table 3.

Table 40. GTM Input and Output AC Timing Specification1

Characteristic

Symbol2

Min

Unit

Notes

GTM inputs—minimum pulse width

tGTIWID

7.5

GTM outputs—minimum pulse width

tGTOWID

Notes:

1. Input specifications are measured from the 50 percent level of the signal to the 50 percent level of the rising edge of CLKIN.

Timings are measured at the pin.

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

synchronous logic. Timer inputs are required to be valid for at least tGTIWID ns to ensure proper operation.

3. The minimum pulse width is a function of the MPX/platform clock. The minimum pulse width must be greater than or equal

to 4 times the MPX/platform clock period.

Output

Z0 = 50 Ω

OVDD/2

RL = 50 Ω

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