........................Document #: 38-07519 Rev. ** Page 7 of 21
Byte 2
Bit @pup Name Pin Description
Bit 7 0 Reserved Reserved
Bit 6 1 PCI6 (Active/Inactive)
Bit 5 1 PCI5 (Active/Inactive)
Bit 4 1 PCI4 (Active/Inactive)
Bit 3 1 PCI3 (Active/Inactive)
Bit 2 1 PCI2 (Active/Inactive)
Bit 1 1 PCI1 (Active/Inactive)
Bit 0 1 PCI0 (Active/Inactive)
Byte 3
Bit @Pup Name Pin Description
Bit 7 1 PCI_F2 (Active/Inactive)
Bit 6 1 PCI_F1 (Active/Inactive)
Bit 5 1 PCI_F0 (Active/Inactive)
Bit 4 0 Reserved Reserved
Bit 3 1 CPU_ITP, CPU_ITP# (Active/Inactive)
Bit 2 0 Reserved Reserved
Bit 1 1 REF1 (Active/Inactive)
Bit 0 1 REF0 (Active/Inactive)
Byte 4
Bit @Pup Name Pin Description
Bit 7 0 MULTSEL_Override This bit control the selection of IREF multiple.
0 = HW control; IREF multiplier is determined by MULTSEL[0:1] input pins
1 = SW control; IREF multiplier is determined by Byte[4], Bit[5:6].
Bit 6 HW SW_MULTSEL1 IREF multiplier
00 = Ioh is 4 x IREF
01 = Ioh is 5 x IREF
10 = Ioh is 6 x IREF
11 = Ioh is 7 x IREF
Bit 5 HW SW_MULTSEL0
Bit 4 0 Reserved Reserved
Bit 3 0 Reserved Reserved
Bit 2 0 Reserved Reserved
Bit 1 0 Reserved Reserved
Bit 0 0 Reserved Vendor Test Mode (always program to 0)
Byte 5
Bit @Pup Name Pin Description
Bit 7 HW Latched FS4 input Latched FS[4:0] inputs. These bits are read only.
Bit 6 HW Latched FS3 input
Bit 5 HW Latched FS2 input
Bit 4 HW Latched FS1 input
Bit 3 HW Latched FS0 input
Bit 2 0 FS_Override 0 = Select operating frequency by FS[4:0] input pins
1 = Select operating frequency by SEL[4:0] settings
Bit 1 0 SEL 3V66 0 = 48-MHz output on pin 27, 1 = 66-MHz output on pin 27
Bit 0 1 SEL 48MHZ 0 = 24-MHz,1 = 48-MHz
