Ppendix, Uestions, Nswers – Zilog Z16C30 User Manual
Page 195
B-1
Z16C30 USC
®
U
SER
'
S
M
ANUAL
Z
ILOG
UM97USC0100
U
SER
’s M
ANUAL
A
PPENDIX
B
Q
UESTIONS
& A
NSWERS
USC FAMILY QUESTIONS AND ANSWERS
The following is a compilation of field customer questions
and answers on the USC and IUSC
™
. They are categorized
in four sections: GENERAL, SERIAL/PROTOCOL, DMA,
and INTERRUPT. These questions and answers are com-
piled on a on-going basis. To get the most updated list of
Q&A’s, call the Zilog Bulletin Board Service (ZBBS) at
(408) 370-8024 via modem (2400-8-N-1-F).
GENERAL QUESTIONS AND ANSWERS
Q:
What’s the difference between the three Datacom
support product kits?
A:
Here are the main differences between the three
Datacom boards:
Z8018600ZCO
Z16C3001ZCO
ZNW2000
Availability
Now
Now
Now
Supports
16C30
16C30
16C32
16C32
16C35
85C30
85230
Plug-In?
Stand-Alone
Plug-In Card
Yes, ISA Bus
On-Board CPU 80186
None
None
CPU Environ.
Intel
Intel
Intel
Comes With
EPM?
Yes
Yes
No
S/W
Drivers
Included
Included
Included
Q:
How can I use the new USC and IUSC
™
technical
manuals more efficiently to debug and answer my
customer’s technical questions?
A:
First, have this list of the USC Family Questions &
Answers handy to look-up previously answered ques-
tions. This list can be given to the customer for further
analysis. Second, use the index provided with both the
USC and IUSC technical manuals for quick refer-
ences. Or, for even faster references, an electronic
version of the IUSC technical manual is available on
the ZBBS. Use a text editor to globally search for key
words on the computer. When key words are located,
you can easily refer to the hardcopy of the technical
manual or read directly from the screen. Call the ZBBS
to download your copy of the IUSC Technical Manual
at 408-370-8024. This file is called “IUSC_TM.EXE”
under the “DATACOM SUPPORT” directory. When
executed this file will decompress into separate chap-
ters for easier search. Your customers can also ac-
cess this ZBBS.
Q:
Dynamic I
CC
means that the part is operating. What is
the speed of operation for this specification, and what
sections of the device are running?
A:
Dynamic I
CC
is specified for the device operating at its
rated speed, with serial transfers and bus activity
occurring as in normal operation. As with all CMOS
devices, the I
CC
of a USC family device will vary with the
clock speed, with current increasing with increasing
clock rate.
Q:
What technology is used to make the USC and IUSC?
A:
The USC family is fabricated in an N-well CMOS
technology. The USC and IUSC are currently in 1.6
micron, with the IUSC moving to Zilog’s 0.8 micron
technology in 1994.
UM009402-0201