DS2155 Просмотр технического описания (PDF) - Maxim Integrated

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Компоненты Описание

производитель

DS2155

T1/E1/J1 Single-Chip Transceiver

Maxim Integrated 

DS2155

Signal Name:

CS

Signal Description:

Chip Select

Signal Type:

Input

Must be low to read or write to the device. CS is an active-low signal.

Signal Name:

ALE(AS)/A7

Signal Description:

Address Latch Enable (Address Strobe) or A7

Signal Type:

Input

In nonmultiplexed bus operation (MUX = 0), serves as the upper address bit. In multiplexed bus operation

(MUX = 1), serves to demultiplex the bus on a positive-going edge.

Signal Name:

WR (R/W)

Signal Description:

Write Input(Read/Write)

Signal Type:

Input

WR is an active-low signal.

4.4 Extended System Information Bus

Signal Name:

ESIBS0

Signal Description:

Extended System Information Bus Select 0

Signal Type:

Input/Output

Used to group two to eight DS2155s into a bus-sharing mode for alarm and status reporting. See Section 29 for

more details.

Signal Name:

ESIBS1

Signal Description:

Extended System Information Bus Select 1

Signal Type:

Input/Output

Used to group two to eight DS2155s into a bus-sharing mode for alarm and status reporting. See Section 29 for

more details.

Signal Name:

ESIBRD

Signal Description:

Extended System Information Bus Read

Signal Type:

Input/Output

Used to group two to eight DS2155s into a bus-sharing mode for alarm and status reporting. See Section 29 for

more details.

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