STU2071FN datasheet(8/18 Pages) STMICROELECTRONICS

部件名	STU2071FN

功能描述	4B3T U INTERFACE CIRCUIT

PDF	18 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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8 / 18 page

DIGITAL INTERFACE

UIC is provided with a digital serial interface,

named V*, which operates in two modes.

In Fig. 6 the frame format for both modes is

shown.

The base frame consists of:

B1 : 64 kbit/s transparent data channel

B2 : 64 kbit/s transparent data channel

B2* : Monitor channel

B1* : 8 bits so set

D1/D2 : 16 kbit/s D channel

A1..A4 : Command/Indicate channel

: Transparent service channel

: Extension bit

In Fig. 7 and 8 the timings in Continuous and in

Burst mode are given.

B2* available messages (do not use in REPETER

modes):

Code

Function

74H

Set RD1 to HIGH

75H

Set RD2 to HIGH

76H

Set RD1 and RD2 to HIGH

77H

Reset RD1 and RD2 to LOW

EFH

Reset frame error counter

(F0-FF)H

NOD

All others

Not defined

In Fig. 7 and 8 the timings in Continuous and in

Burst mode are given.

Figure 6: V* Frame Format.

Figure 7: Continuous Mode.

STU2071

8/18

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