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GPIB ASIC Reference Manual
Errata
The changes described in this document are important information for users
of the
NAT7210 Reference Manual,
the
NAT9914 Reference Manual,
and
the
TNT4882 Programmer Reference Manual.
Contents
NAT7210 Reference Manual .................................................................. 1
NAT9914 Reference Manual .................................................................. 2
TNT4882 Programmer Reference Manual ............................................. 2
Appendix A ............................................................................................. 7
NAT7210 Reference Manual
•
Page 4-3, first paragraph in
The Page-In Condition
section, replace the
existing text,
(offset 4)
with this new text,
(offset 2)
•
Page 4-15, first paragraph, replace the existing text,
Note: Writes to the AUXCR
with this new text,
Note: Any register access following a write to the AUXCR
•
Page 4-46, replace both instances of the existing text,
ch_rst + read ISR0
with this new text,
ch_rst + (read ISR2)
NAT9914 Reference Manual
•
Page 3-3, first paragraph in
The Page-In Condition
section, replace the
existing text,
(offset 4)
with this new text,
(offset 2)
•
Page 3-15, first paragraph, replace the existing text,
Note: Writes to the AUXCR
with this new text,
Note: Any register access following a write to the AUXCR
•
Page 3-46, replace both instances of the existing text,
ch_rst + read ISR0
with this new text,
ch_rst + (read ISR2)
TNT4882 Programmer Reference Manual
•
Page 2-4, second paragraph, replace the text,
Accessory Read Register (ACCR)
with this text,
Auxiliary Command Register (AUXCR)
GPIB ASIC Reference Manual Errata
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•
Page 3-64, the last paragraph under the
Turbo+7210 Mode/
Turbo+9914 Mode
section, replace the register name,
ACCR
with the register name,
AUXCR
•
Page 3-67, in the paragraph for the
Turbo+7210 Mode/Turbo+9914
Mode
section, replace the register name,
ACCR
with the register name,
AUXCR
•
Page 3-96, in the
One-Chip Mode
section, replace the existing text,
DO is a don’t care bit. Do not set DO IE. DO may read as 1 or 0
with this new text,
DO indicates that the TNT4882 is an Active Talker and the local
nba message is false, meaning there is no data in the FIFO to send.
•
Page 3-109, replace both instances of the existing text,
chip_reset + read ISR0
with this new text,
ch_rst + (read ISR2)
•
Page 3-118, at the top of the page, under
Description,
replace the
existing text,
NDAC for 700 ns
with this new text,
NDAC for at least 8 clock cycles
•
Page 4-13, in the
IEEE 488.2 Service Requesting
section, replace the
existing text in that section with the following.
If STBO IE = 1, to request service, issue the reqt auxiliary
command. When the STBO interrupt condition becomes true,
©
National Instruments Corporation
3
GPIB ASIC Reference Manual Errata
write the status byte (STB) to the SPMR with the appropriate
value for RQS.
If STBO IE = 0, to request service, issue the reqt auxiliary
command. Then, write the status byte (STB) to the SPMR. When
you write to the SPMR, write 0 to bit 6 (the rsv bit). The TNT4882
asserts and unasserts the rsv signal according to the set rsv state
machine that is described in the IEEE 488.2 standard.
After the CIC serial polls the TNT4882, you must issue the reqt
auxiliary command and write to the SPMR again to request
service. If you want to stop requesting service before a serial poll
occurs, issue the reqf auxiliary command.
•
Page 4-14, in the
Responding to Serial Polls
section, second
paragraph, next-to-last sentence, replace the existing text,
to the SPMR (write 0 to bit 6)
with this new text,
to the SPMR with the appropriate value for RQS
GPIB ASIC Reference Manual Errata
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ni.com
•
Page C-22, replace the existing Figure C-7 with the following figure,
System Controller
GPIB Device
UNListen (UNL)
Controller Listen Address
Serial Poll Enable (SPE)
Device Talk Address
Generates Serial Poll Byte
Device Set as Talker
Read (IBRD) Serial Poll
Byte from Device
Serial Poll Byte Returned
Serial Poll Disable (SPD)
UNTalk (UNT) All Devices
Turns off Serial Poll Mode
Figure 1.
New Figure C-7 for Page C-22
•
Page D-9, in the
System Configuration
section, third paragraph, second
sentence, replace the existing text,
1E hex
with this new text,
0x1F
•
Page D-9, following the
System Configuration
section, insert the
contents of
Appendix A
of this document, to create a new section
entitled
Operation.
©
National Instruments Corporation
5
GPIB ASIC Reference Manual Errata

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