Intel N2820 FH8065301616603 Data Sheet
Product codes
FH8065301616603
PCU – Serial Peripheral Interface (SPI)
1044
Datasheet
21
PCU – Serial Peripheral
Interface (SPI)
The processor implements a SPI controller as the interface for BIOS Flash storage. This
SPI Flash device is also required to support firmware for the Trusted Execution Engine
(required). The controller supports a maximum of two SPI Flash devices, using two chip
select signals, with speeds of 20 MHz, 33 MHz or 50 MHz.
SPI Flash device is also required to support firmware for the Trusted Execution Engine
(required). The controller supports a maximum of two SPI Flash devices, using two chip
select signals, with speeds of 20 MHz, 33 MHz or 50 MHz.
Note:
The default interface speed is 20 MHz.
21.1
Signal Descriptions
Please see
for additional details.
The signal description table has the following headings:
•
Signal Name: The name of the signal/pin
•
Direction: The buffer direction can be either input, output, or I/O (bidirectional)
•
Type: The buffer type found in
•
Description: A brief explanation of the signal’s function
I
O
I
O
I
O
I
O
I
O
I
O
I
O
O
Platform Control Unit
UAR
T
SM
B
B
iLB
SPI
PM
C
C