MPC8349VVAGF View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

MFG CO.

MPC8349VVAGF

PowerQUICC™ II Pro Integrated Host Processor Hardware Specifications

Freescale Semiconductor 

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DUART

7 DUART

This section describes the DC and AC electrical specifications for the DUART interface of the

MPC8349E.

7.1 DUART DC Electrical Characteristics

Table 17 provides the DC electrical characteristics for the DUART interface of the MPC8349E.

Table 17. DUART DC Electrical Characteristics

Parameter

High-level input voltage

Low-level input voltage

Input current (0.8 V ≤ VIN ≤ 2 V)

High-level output voltage, IOH = –100 μA

Low-level output voltage, IOL = 100 μA

Symbol

VIH

VIL

IIN

VOH

VOL

Min

2

–0.3

—

OVDD – 0.2

—

Max

OVDD + 0.3

0.8

±5

—

0.2

Unit

V

V

μA

V

V

7.2 DUART AC Electrical Specifications

Table 18 provides the AC timing parameters for the DUART interface of the MPC8349E.

Table 18. DUART AC Timing Specifications

Parameter

Value

Unit Notes

Minimum baud rate

256

baud

Maximum baud rate

>1,000,000

baud

1

Oversample rate

16

—

2

Notes:

1. Actual attainable baud rate will be limited by the latency of interrupt processing.

2. The middle of a start bit is detected as the 8th sampled 0 after the 1-to-0 transition of the start bit. Subsequent bit values are

sampled each 16th sample.

MPC8349E PowerQUICC™ II Pro Integrated Host Processor Hardware Specifications, Rev. 10

20

Freescale Semiconductor

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