4.30 Functional Strap Definitions –Table 8
Name
Usage
When
Sampled
Comment
SPI_MOSI
TPM
Functionality
Disable
Rising edge of
MEPWROK
This signal has a weak internal pull-down resistor. This signal
must be sampled low.
NV_CLE
DMI
Termination
Voltage
Rising edge of
PWROK
This signal has a weak internal pull-down.
HDA_SDO
Reserved
Rising edge of
RSMRST#
This signal has a weak internal pull down. NOTE: This signal
should not be pulled high
GPIO8
Reserved
Rising edge of
RSMRST#
This signal has a weak internal pull up.
Note:
the weak internal pull-up is disabled after RSMRST#
de-asserts.
NOTE:
This signal should not be pulled low
GPIO27
On-Die PLL
Voltage
Regulator
Rising edge of
RSMRST# pin
This signal has a weak internal pull-up. Note: the internal pull-
up is disabled after RSMRST# de-asserts.
The On-Die PLL voltage regulator is enabled when sampled
high. When sampled low the On-Die PLL Voltage Regulator is
disabled.
HDA_SYNC
On-Die PLL
Voltage
Regulator
Voltage Select
Rising edge of
RSMRST# pin
This signal has a weak internal pull down. On Die PLL VR is
supplied by 1.5V when sampled high, 1.8 V when sampled
low.
GPIO15
Reserved
Rising edge of
RSMRST# pin
Low = Intel Management Engine Crypto Transport Layer
Security (TLS) cipher suite with no confidentiality
High = Intel Management Engine Crypto TLS cipher suite
with confidentiality This signal has a weak internal pull down.
NOTE:
A strong pull up may be needed for GPIO
functionality