MPC8323E datasheet(45/82 Pages) FREESCALE

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MPC8323E PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 4

Freescale Semiconductor

HDLC, BISYNC, Transparent, and Synchronous UART

19 HDLC, BISYNC, Transparent, and Synchronous

UART

This section describes the DC and AC electrical specifications for the high level data link control (HDLC),

BISYNC, transparent, and synchronous UART of the MPC8323E.

19.1

HDLC, BISYNC, Transparent, and Synchronous UART DC

Electrical Characteristics

Table 50 provides the DC electrical characteristics for the MPC8323E HDLC, BISYNC, transparent, and

synchronous UART protocols.

19.2

HDLC, BISYNC, Transparent, and Synchronous UART AC Timing

Specifications

Table 51 provides the input and output AC timing specifications for HDLC, BISYNC, and transparent

UART protocols.

Table 50. HDLC, BISYNC, Transparent, and Synchronous UART DC Electrical Characteristics

Characteristic

Symbol

Condition

Min

Max

Unit

Output high voltage

VOH

IOH = –2.0 mA

2.4

—

Output low voltage

VOL

IOL = 3.2 mA

—

0.5

Input high voltage

VIH

—2.0

OVDD +0.3

Input low voltage

VIL

—

–0.3

0.8

Input current

IIN

0 V

≤ VIN ≤ OVDD

—

±5

μA

Table 51. HDLC, BISYNC, and Transparent UART AC Timing Specifications1

Characteristic

Symbol2

Min

Max

Unit

Outputs—Internal clock delay

tHIKHOV

05.5

Outputs—External clock delay

tHEKHOV

110

Outputs—Internal clock high impedance

tHIKHOX

05.5

Outputs—External clock high impedance

tHEKHOX

Inputs—Internal clock input setup time

tHIIVKH

6—

Inputs—External clock input setup time

tHEIVKH

4—

Inputs—Internal clock input hold time

tHIIXKH

0—

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