Chng C10

Page - 1 Common Hardware Reference Platform Architecture Version 1.0 Change Notice October 2, 1996 Apple/IBM/Motorola - CHRP Board Apple/IBM/Motorola - CHRP Board 2 This paper presents a chronological list of all changes approved for the published version of the PowerPC Microprocessor Common Hardware Reference Platform: A System Architecture (CHRP). These changes are approved by the CHRP Board. These changes will be incorporated into the next version of the CHRP document at the next printing. Editorial Comments June 6, 1996 The following editorial comments have been received through June 6, 1996. ■ Page xx add a paragraph before the paragraph starting “Sample implemen- tations ...” to describe the use of this material by component manufacturers. “This document is one of those needed by vendors building chips and adaptors for use in these platforms. Component manufacturers must produce components which conform to this architecture.” ■ Change the second paragraph on page xxiii to read “Big-Endian numbering of bytes is used in this document, unless indicated otherwise. Numbering of bits starts at zero for the most significant bit and continues to the least significant bit, unless indicated otherwise.” ■ Change the third paragraph on page xxiii to indicate the table number. “Ty- pographical ... in Table i on page xxiii.” ■ Change the table number on page xxiii to be “Table i.” ■ Change the last sentence in the paragraph and change the list under 2.5.1.4 on page 18. This paragraph should now read as follows: “The description column ... Two documents are referenced extensively using an abbreviation in this description column. The abbreviations are as follows: [20] refers to the PowerPC Microprocessor Common Hardware Reference Platform: I/O Device Reference. Use this document for additional information on the annotated specifications. [23] refers to the Macintosh Technology in the Common Hardware Reference Platform. Use this document for specific physical, timing, and electrical requirements of the annotated specifications.” ■ Remove the two instances of the phrase “(see note 1)” in the Specifications column for the Pointing Device row in Table 2 on page 19. ■ Add the phrase “For 64-bit addressing option in HBs:” to the start of re- quirement 3-5 on page 29 and 227. Apple/IBM/Motorola - CHRP Board 3 Editorial Comments June 6, 1996 ■ Remove a redundant sentence in the last paragraph on page 37. This para- graph should read “Addresses in peripheral I/O Space from BIO+64 KB to BIO + (8MB - 1) are reserved for hardware use. HBs may treat ...” ■ At the bottom of page 37 add a note which should read as follows: “Software Implementation Note: When in the discontiguous I/O mode software should not put out an operation to Peripheral I/O Space which crosses a 32-byte boundary. Results from such operations are undefined.” ■ Change the table reference for requirement 3-18 on page 39 and 230 to “Ta- ble 7 on page 44.” ■ Add a new bullet under “S…