UT553B-RTIGCX Ver la hoja de datos (PDF) - Aeroflex UTMC

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Fabricante

UT553B-RTIGCX

Remote Terminal Interface

Aeroflex UTMC 

CONTROL PINS

NAME

PIN NUMBER

LCC

PGA

CS

44

E9

CTRL

50

C11

ADOEN

RD/WR

15

L3

46

E10

BCEN

25

K7

ILL COMM

20

L5

TYPE

TI

TI

TI

TI

TUI

TDI

ACTIVE

AL

AL

AL

--

AL

AH

DESCRIPTION

Chip Select. Active low input for host access of

transparent memory or the RTI internal registers. In

the transparent memory configuration CS is propa-

gated through the RTI to the RCS output.

Control. The host processor uses the active low

CTRL input signal in conjunction with CS and RD/

WR to access the RTI internal registers. CTRL is

also used in the software assignment of the terminal

address and programmed reset.

Address Output Enable. When ADOEN is low the

Address Out bus (ADDR OUT (15:0)) is active. If

ADOEN = 1 the Address Out bus is high impedance.

Read/Write. The host processor uses a high level on

this input in conjunction with CS and CTRL to read

the RTI internal registers. A low level on this input is

used in conjunction with CS and CTRL to write to

internal RTI registers. In the transparent memory

configuration RD/WR is propagated through the RTI

to the RRD/RWR output.

Broadcast Enable. Active low input enables broad-

cast commands.

Illegal Command. The host processor uses the ILL

COMM input to inform the RTI that the present

command is illegal. ILL COMM is used in conjunc-

tion with MCSA(4:0) and MC/SA to define system

dependent illegal commands.

RTI-19

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