Intel E3815 FH8065301567411 Hoja De Datos
Los códigos de productos
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
464
Datasheet
14.10.18 GPIOCTL_2—Offset 5018h
GPIO Control Registers GPIO I2C register (gmbus_register.v reg_gpio0, reg_gpio1,
reg_gpio2. reg_gpio3, reg_gpio4)
Access Method
10
0b
WO
GPIO_DATA_MASK_WO:
This is a mask bit to determine whether the GPIO DATA
VALUE bit should be written into the register. This value is not stored and when read
returns 0.
0 = Do NOT write GPIO Data Value bit (default).
1 = Write GPIO Data Value bit.
AccessType: Write Only
9
0b
RW
GPIO_DATA_DIRECTION_VALUE_R_W:
This is the value that should be used to
define the output enable of the GPIO Data pin. This value is only written into the register
if GPIO Data DIRECTION MASK is also asserted. The value that will appear on the pin is
defined by what is in the register for the GPIO DATA VALUE bit.
0 = Pin is configured as an input (default)
1 = Pin is configured as an output.
8
0b
WO
GPIO_DATA_DIRECTION_MASK_WO:
This is a mask bit to determine whether the
GPIO DIRECTION VALUE bit should be written into the register. This value is not stored
and when read always returns 0.
0 = Do NOT write GPIO Data Direction Value bit (default).
1 = Write GPIO Data Direction Value bit.
AccessType: Write Only
7:5
0b
RW
RESERVED_1:
must be written with zeros.
4
0b
RO
GPIO_CLOCK_DATA_IN_RO:
This is the value that is sampled on the GPIO Clock pin
as an input.
This input is synchronized to the Core Clock domain. Because the default setting is this
buffer is an input, this bit is undefined at reset.
AccessType: Read Only
3
1b
RW
GPIO_CLOCK_DATA_VALUE_R_W:
This is the value that should be place on the
GPIO Clk pin as an output. This value is only written into the register if GPIO Clock DATA
MASK is also asserted. The value will appear on the pin if this data value is actually
written to this register and the GPIO Clock DIRECTION VALUE contains a value that will
configure the pin as an output.
Default = 1. The GPIO default clock data value is programmed to 1 in hardware. The
hardware drives a default of 1 since the I2C interface defaults to a 1 . (this mimics the
I2C external pull-ups on the bus)
2
0b
WO
GPIO_CLOCK_DATA_MASK_WO:
This is a mask bit to determine whether the GPIO
Clock DATA VALUE bit should be written into the register. This value is not stored and
when read always returns 0.
0 = Do NOT write GPIO Clock Data Value bit (default).
1 = Write GPIO Clock Data Value bit.
AccessType: Write Only
1
0b
RW
GPIO_CLOCK_DIRECTION_VALUE_R_W:
This is the value that should be used to
define the output enable of the GPIO Clock pin. This value is only written into the
register if GPIO Clock DIRECTION MASK is also asserted. The value that will appear on
the pin is defined by what is in the register for the GPIO Clock DATA VALUE bit.
0 = Pin is configured as an input and the output driver is set to tri-state (default)
1 = Pin is configured as an output.
0
0b
WO
GPIO_CLOCK_DIRECTION_MASK_WO:
This is a mask bit to determine whether the
GPIO Clock DIRECTION VALUE bit should be written into the register. This value is not
stored and when read returns 0.
0 = Do NOT update the GPIO Clock Direction Value bit on a write (default).
1 = Update the GPIO Clock Direction Value bit. on a write operation to this register.
AccessType: Write Only
Bit
Range
Default &
Access
Field Name (ID): Description