CT2579 datasheet(22/41 Pages) AEROFLEX

22 / 41 page

APPLICATION NOTE #108

Released 9/98

CT2577 /79 RT/BC Device Memory Map Breakdown

The following description is for devices that have internal 3K memory.

ALL 'User' Locations are Read/Writable

BCST (Binary)

T/R

(Binary)

Subaddress (Hex)

Word Count (Hex)

Composite VME Address 16-bit mode (Hex)

Composite VME Address 8-bit mode (Hex) = Lower Byte

Upper Byte = Address +1

Composite MULTIbus Address 16-bit mode (Hex)

FUNCTION

000

0000

FFF

W - Command Word (2nd RT-RT Command) (BC)

TRIGGERS BC - BUS ’X’ Operation

R - Received STATUS (FIFO Stack) (BC)

W - Resets ALL Status Bits (RT)

R - RT Received COMMAND (RT)

001

0002

FFE

R/W - 1st RT-RT COMMAND (BC)

R/W - Memory Address 002 through 00Fh (BC)

W - Sets STATUS Word Flags as Described below (RT)

R - ALL Status Bits WRITTEN (RT) via Addresses 001---

00F plus BURST Control as Follows:

x = Don't Care

Y = STATUS Word Bits Selected via WRITEs to 001 through 00Fh

B = BURST Control Selected via WRITEs to 402 through 405h

xxxx xxxx 00 B B

Y Y Y Y

DBC

SSF

BUSY

BTL WRITE ENABLED (TX)

BTL READ ENABLED (RX)

CT2579 데이터시트(PDF) 22 Page - Aeroflex Circuit Technology