AM79C974 datasheet(137/153 Pages) AMD

137 / 153 page

AMD

A M E N D M E N T

Am79C974

Page 44

Change SPRINTEN to LAPPEN in lines 12 and 13.

Page 54

Line 17, change 100% to 10%.

Page 59

Line 12 should read, “When the Am79C974 controller samples its IDSELA or IDSELB input ...” (The original ommitted

“IDSELA”).

Page 62

Column 2, line 30, change “lower two bytes” to “upper two bytes”.

Page 71

Line 15, change “DRCBC” to “DRCVPA”.

Page 76

(Reprinted as pages 13 and 14 of the amendment)

“DMA BLAST command” section has been extensively revised.

Page 77

(Reprinted as page 15 of this amendment)

The description of the CMD1–0 bits at the end of column 2 should read, “These two bits are encoded to represent four

commands: IDLE, BLAST, START, and ABORT.” (The BLAST command was omitted in the original.)

In the table at the bottom, the description of the IDLE command should read, “Resets the DMA block to the IDLE state.

Stops any current transfer. Does not affect status bits or cause an interrupt.”

Pages 78–80

(Reprinted as pages 16–18 of this amendment)

“DMA Scatter-Gather Operation (4K aligned elements)” section has been extensively revised.

Page 81

Delete lines 19 and 20, which read, “The DMA transfer request was aborted (ABORT command, or the Master or

Target Abort).”

Page 92

ABSOLUTE MAXIMUM RATINGS

Line 4: Add “or VSSBS or DVSS” to read “Supply Voltage to AVSS or VSSB or VSSBS or DVSS”

Line 5: Add “VDDBS, DVDD” to read “(AVDD, VDD, VDDB, VDDBS, DVDD)”

Page 92

OPERATING RANGES

Line 3: Add “VDDBS, DVDD” to read “(AVDD, VDD, VDDB, VDDBS, DVDD)”

After Line 7: Add “or VSSBS –0.5 V

≤ VIN ≤ VDDBS +0.5 V” and “or DVSS –0.5 V ≤ VIN ≤ DVDD +0.5 V”

In the DC Characteristics table, VOL (max) for those pins to which IOL1 or IOL2 applies is 0.55 V (to comply with the PCI

specification) rather than 0.45 V. Also, VOL (max) for those pins to which IOL3 applies is 0.4 V rather than 0.45 V.

AM79C974 Datasheet(PDF) 137 Page - Advanced Micro Devices