Appeal No. 2002-1319 Page 11 Application No. 08/974,971 in hardware with either pull-up or pull-down resistors (not shown) to provide any of the sizes shown in Table LXVIII. From this disclosure of DeRoo, we find that sizes of the boot block sector are configured in hardware using pull-up or pull-down resistors. DeRoo further discloses (col. 88, lines 1-5) that “[t]hus, as described, the HUI 700 can be configured to emulate boot block protection to enable memory device such as the common memory device 704 which do not have built-in boot block protection capability to be used for storage of the boot block protected code non-volatile sector.” Although DeRoo discloses that memory 704 does not have built-in boot block protection, and that HUI 700 emulates boot block protection, we find from all of the teachings of DeRoo provides boot block protection, irrespective of whether it is emulated. Moreover, DeRoo discloses (col. 88, lines 10-15) that the protected boot block range should start on a 1 kilobyte memory boundary and finish at the top of the memory as shown in figure 27. The size, as defined in Table LXVIII, and therefore the starting address of the protected range, can be determined from the hardware configuration register HUICFG_[0:7]. The remaining memory space is used for SCP (system control processor) non-volatile areas and BIOS.Page: Previous 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 NextLast modified: November 3, 2007