EP80579 Datasheet, PDF (813/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
22.2.1.6 Offset 30h: GPIO_USE_SEL2 - GPIO Use Select 2 {63:32} Register
Table 22-9. Offset 30h: GPIO_USE_SEL2 - GPIO Use Select 2 {63:32} Register
Description: This register is used to select between GPIO and alternative functions on GPIO[63:32]
View: PCI
BAR: GBA(IO)
Bus:Device:Function: 0:31:0
Offset Start: 30h
Offset End: 33h
Size: 32 bit
Default: Variable
Power Well: Core
Bit Range
31 : 00
Bit Acronym
Bit Description
Sticky
Enables GPIO[n] (where n is the bit number) to be used as a
GPIO, rather than for the alternative function.
1 = Signal used as GPIO (or unmuxed).
0 = Signal used as alternative function.
• Bit Access is always RO for bits[03:07, 10:15, 18:31] and
returns 0 since GPIO pins[35:39, 42:47, 50:63] do not
GPIO_USE_SEL
exist.
• Bit Access is always RO for bit[16] and returns 1 since there
is no alternative function for GPIO[48].
• Bit Reset Value is 0001_0000h when SIU2_TXD is strapped
LOW on the rising edge of PWROK, else 0001_0106h.
• See Section 22.1, “Overview” on page 803 for more details.
• See Table , “” on page 804 for list of alternate functions.
Bit Reset
Value
Variable
Bit Access
RW
22.2.1.7 Offset 34h: GP_IO_SEL2 - GPIO Input/Output Select 2 {63:32}
Register
Table 22-10. Offset 34h: GP_IO_SEL2 - GPIO Input/Output Select 2 {63:32} Register
(Sheet 1 of 2)
Description: This register allows setting of input/output direction of the GPIO pins 49-32
View: PCI
BAR: GBA(IO)
Bus:Device:Function: 0:31:0
Offset Start: 34h
Offset End: 37h
Size: 32 bit
Default: 00000300h
Power Well: Core
Bit Range Bit Acronym
Bit Description
31 : 17
16 : 16
15 : 10
09 : 08
GP_IO_SEL_63_
49
Always
0.
These
pins
are
always
outputs.
GP_IO_SEL_48 Always 0. These pins are always outputs.
GP_IO_SEL_47_
42
Always
0.
No
corresponding
GPIO.
GP_IO_SEL_41_
40
Always
1.
These
pins
are
always
inputs.
Sticky
Bit Reset
Value
0h
0h
0h
11b
Bit Access
RO
RO
RO
RO
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
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