VT82C596A

Revision 1.1 December 9, 1998

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Revision History

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Document Release

Date

Revision

Initials

Revision 0.1

11/5/97

Initial release based on 82C586B Data Sheet revision 1.0

- Updated pinouts to reflect BGA package and new/changed pin definitions

- Changed mechanical spec to 324-pin BGA

- Updated part name, description, and feature bullets

- Updated registers to reflect changes from 586B

DH

Revision 0.2

11/11/97

Fixed miscellaneous typographical errors

Updated power management feature bullets

Renamed CLKRUN#->PCKRUN#, PCICLK->PCLK, VCCRTC->VBAT

Added SLPBTN# function to GPI13

Added descriptions for pins CFG1-2 and TEST#

Moved reference of PWROK & RSMRST# from VBAT to VCCSUS

Added Keyboard Controller SRAM Data R/W (I/O Ports 21-3F and 61-7F)

Register Updates:

- Function 0, Rx68 (SERIRQ control register). Added note about frame size

- Function 1 (IDE)

- Rx43[7] definition changed

- Rx43[6-5] changed to 3-bit field in bits 6-4 (bit-4 formerly reserved)

- Rx44[2] defined

- Rx44[1-0] changed to reserved

- Rx50[31] fixed typo (was bit-6, changed to bit-30)

- Rx50[26, 18, 10, 2] extended cycle time fields from 2 bits to 3 bits

- Rx50[3, 19] changed to reserved (do not program)

- Function 2 (USB) – Rx3C[3-0] = 1111 now disables USB interrupt

- Function 3 (Power Management)

- Rx4C[7-4] – Thermal Duty Cycle changed to 4-bit field (bit-4 redefined)

- I/O Space Rx10 – Added clarifying notes, added bit names, fixed typos

- I/O Space Rx4C – Fixed typo

Power management functional description rewritten & moved to new section

Added more detailed block diagram in Functional Description section

DH

Revision 0.3

1/30/98

Updated Feature Bullets

Updated Pin Descriptions: Added strap options on SD7:4

Updated Register Descriptions:

- Func 0 Rx4, Rx59, Rx5A

- Func 1 Rx45

- Func 3 Rx8, Rx0D, Rx48, Rx4C, Rx80 –88 (& added SMBus I/O registers)

- Pwr Mgmt I/O offsets 14, 15, 20, 2C

Changed I/O register headers from “Offset” to “I/O Offset”

DH

Revision 0.4

2/17/98

Updated feature bullets: Apollo P6 => Apollo Pro; PC97 =>PC98

Fixed pin directions: SERIRQ,SERR#,IOCHRDY,MCS16#,IOCS16#,SPKR

Changed pin direction “B” to “IO” for consistency

Added missing pin directions on MCCS# and IDE “CS” and address pins

Fixed default on Rx50 & removed Rx57 pin # reference note

DH

Revision 1.0

9/15/98

Fixed pinouts: H3=USBP0-, G2=USBP0+, H2=USBP1-, F1=USBP1+

Fixed PIRQ Routing (register definitions Rx55[7-4], Rx56, Rx57[7-4])

Changed default from 0 to 1 for I/O offset 3-2 bit-8 Power Button Enable

DH

Revision 1.1

12/9/98

Changed part number to 596A

Swapped pinouts of RTCCS# and ROMCS# (balls K2 and M2)

Fixed polarity of Function 2 USB Rx41[2]

DH