Z85233 Datasheet, PDF (252/317 Pages) Zilog, Inc. – The Zilog SCC Serial Communication Controller

APPLICATION NOTE
1
BOOST YOUR SYSTEM PERFORMANCE USING
THE ZILOG ESCC^™
12
F for greater testability, larger interface flexibility, and increased CPU/DMA offloading,
replace the SCC with the ESCC^™ Controller... and utilize the ESCC to its full potential.
INTRODUCTION
This App Note (Application Note) describes the differences
between the SCC (Z8030/8530, Z80C30/85C30) and
ESCC (Z80230/85230). It outlines the procedures in
utilizing the ESCC to its full potential. Application details
such as Schematics and Program Listings are not included
since these materials are in our various application
support products.
Note: The author assumes the audience has fundamental
Datacommunications knowledge and basic familiarity with
Zilog SCC products.
Notes: All Signals with a preceding front slash, “/”, are
active Low, e.g.: B//W (WORD is active Low); /B/W (BYTE
is active Low, only).
Power connections follow conventional descriptions
below:
Connection
Power
Ground
Circuit
V_CC
GND
Device
V_DD
V_SS
UM010901-0601
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