EP80579 Datasheet, PDF (814/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
Table 22-10. Offset 34h: GP_IO_SEL2 - GPIO Input/Output Select 2 {63:32} Register
(Sheet 2 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
Sticky
07 : 03
02 : 01
00
GP_IO_SEL_39_
35
Always
0.
No
corresponding
GPIO.
• Input when in IRQ mode. I/O when in GPIO mode.
0 = GPIO signal is programmed as an output.
GP_IO_SEL_34_ 1 = Corresponding GPIO signal is programmed as an
33
input (if enabled in Table 22-9, “Offset 30h:
GPIO_USE_SEL2 - GPIO Use Select 2 {63:32}
Register” on page 813).
Reserved. No corresponding GPIO.
Reserved
Bit Reset
Value
0h
00b
0b
Bit Access
RO
RW
RW
22.2.1.8 Offset 38h: GP_LVL2 - GPIO Level for Input or
Output 2 {63:32} Register
Table 22-11. Offset 38h: GP_LVL2 - GPIO Level for Input or Output 2 {63:32} Register
(Sheet 1 of 2)
Description:
This register allows
when output.
reading
of
the
current
GPIO
bit
values
for
GPIO
pins
31-0
when
input,
and
writing
the
value
View: PCI
BAR: GBA(IO)
Bus:Device:Function: 0:31:0
Offset Start: 38h
Offset End: 3Bh
Size: 32 bit
Default: 00030207h
Power Well: Core
Bit Range
31 : 17
16 : 16
15 : 10
09 : 08
Bit Acronym
Bit Description
Sticky
Reserved Read-Only 0.
GP_LVL_48
The corresponding GP_LVL[n] bit can be updated by
software to drive a high or low value on the output pin.
0 = low
1 = high
Since these bits correspond to GPIO that are in the
processor I/O and core well, respectively, these bits are
reset to their native function by PLTRST#.
Reserved Read-Only 0.
The corresponding GP_LVL[n] bit reflects the state of
the input signal. Writes have no effect.
GP_LVL_41_40
0=
1=
low
high
Since these bits correspond to GPIO that are in the core
well they are reset to their native function by PLTRST#.
Bit Reset
Value
0h
1b
0h
10b
Bit Access
RW
RO
Intel^® EP80579 Integrated Processor Product Line Datasheet
814
August 2009
Order Number: 320066-003US