PEB2256HT datasheet(29/490 Pages) INFINEON

부품명	PEB2256HT

상세설명	E1/T1/J1 Framer and Line Interface Component for Long and Short Haul Applications

PDF	490 Pages

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제조업체	INFINEON [Infineon Technologies AG]

홈페이지	http://www.infineon.com

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FALC56 V1.2

PEB 2256

Pin Descriptions

Data Sheet

2002-08-27

2.3

Pin Definitions and Functions

•

Table 1

Pin Definitions - Microprocessor Interface

No.

Ball

No.

Symbol

Input (I)

Output (O)

Supply (S)

Function

I + PU

Address Bus

These inputs interface with eight bits of the

system’s address bus to select one of the

internal registers for read or write.

D15

D14

D13

D12

D11

D10

I/O + PU

Data Bus

Bidirectional tristate data lines which interface

with the system’s data bus. Their configuration

is controlled by the level of pin DBW:

8-bit mode (DBW = 0): D(7:0) are active.

D(15:8) are internally pulled high.

16-bit mode (DBW = 1): D(15:0) are active.

In case of byte transfers, the active half of the

bus is determined by A0 and BHE/BLE and the

selected bus interface mode (via pin IM). The

unused half is internally pulled high.

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