DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver

 

 

 

 

 

 

 

NAME

PIN

TYPE

FUNCTION

 

 

 

 

Read Data Strobe (Intel Mode): The DS33R11 drives the data bus

 

 

 

 

 

(D0-D7) with the contents of the addressed register while RD and

 

 

RD/DS

B11

I

CS are both low.

 

 

Data Strobe (Motorola Mode): Used to latch data through the

 

 

 

 

 

 

 

 

 

 

microprocessor interface. DS must be low during read and write

 

 

 

 

 

operations.

 

 

 

A11

I

Chip Select for Protocol Conversion Device: This pin must be

 

 

CS

taken low for read/write operations. When CS is high, the RD/DS

 

 

 

 

 

and WR signals are ignored.

 

 

CST

D7

I

Chip Select for the T1/E1/J1 Transceiver: Must be low to read or

 

 

write the T1/E1/J1 transceiver.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interrupt Output: Outputs a logic zero when an unmasked

 

 

 

 

interrupt event is detected. INT is deasserted when all interrupts

 

 

INT

A10

OZ

have been acknowledged and serviced. Active low. Inactive state is

 

 

programmable in register GL.CR1. is deasserted when all

 

 

 

 

 

 

 

 

 

 

interrupts have been acknowledged and serviced. Active low.

 

 

 

 

 

Inactive state is programmable in register GL.CR1.

 

26 of 344

Page 26
Image 26
Maxim specifications Name PIN Type Function, Read Data Strobe Intel Mode The DS33R11 drives the data bus