Intel CONTROLLERS 413808 - Manual (Page 228)

Intel
®
413808 and 413812—Address Translation Unit (PCI-X)
Intel ® 413808 and 413812 I/O Controllers in TPER Mode
Developer’s Manual October 2007
228 Order Number: 317805-001US
2.14.90 PCIX PAD DRIVE STRENGTH Manual Override Values Register
(3.3 V/1.5 V Switch Supply Voltage) — PPDSMOVR3.3_1.5
Warning:
In Central Resource mode this register can only be accessed when PCSR bit 21 is
cleared. Refer to Table 68, “PCI Configuration and Status Register - PCSR” on
page 178 .
Table 117. PCIX PAD DRIVE STRENGTH Manual Override Values Register (3.3V/1.5V
Switch
Supply Voltage) — PPDSMOVR3.3_1.5
Bit Default Description
31:28 0H Reserved
27:24 1000
2
N-slew rate manual override values for PCIX pad.
23:20 0000
2
Reserved.
19:16 1000
2
P-slew rate manual override values for PCIX pad.
15:14 00
2
Reserved.
13:08 100000
2
N-drive strength manual override values for PCIX pad.
07:06 00
2
Reserved.
05:00 100000
2
P-drive strength manual override values for PCIX pad.
PCI
IOP
Attributes
Attributes
28 24 20 16 12 8 4 0 31
rv
na
rv
na
rv
na
rv
na
rw
na
rw
na
rw
na
rw
na
rv
na
rv
na
rv
na
rv
na
rw
na
rw
na
rw
na
rw
na
rv
na
rv
na
rw
na
rw
na
rw
na
rw
na
rw
na
rw
na
rv
na
rv
na
rw
na
rw
na
rw
na
rw
na
rw
na
rw
na
Attribute Legend:
RV = Reserved
PR = Preserved
RS = Read/Set
RW = Read/Write
RC = Read Clear
RO = Read Only
NA = Not Accessible
Intel XScale ® processor Local Bus
offset
+2108H