Intel C2338 FH8065501516761 データシート
製品コード
FH8065501516761
Intel
®
Atom™ Processor C2000 Product Family for Microserver
September 2014
Datasheet, Vol. 2 of 3
Order Number: 330061-002US
465
Volume 2—Intel Legacy Block (iLB) Devices—C2000 Product Family
21
Intel Legacy Block (iLB) Devices
The Intel Legacy Block (iLB) is a collection of disparate functional blocks that are critical
for implementing the legacy PC-platform features. It also provides support for Non-
Maskable Interrupts (NMI) that are signalled to an open-drain
input pin.
The iLB blocks are:
•
interface with 31 interrupts synchronized
with the LPC clock
•
bus host controller and interface
•
registers and interface pins
•
•
with PC speaker capability
•
•
two cascaded devices
•
The control registers for the iLB blocks are briefly described in this chapter. These
legacy-device blocks are described in other chapters.
The PCI-to-ISA bridge and the LPC interface to external devices are described in
Figure 21-1. Intel Legacy Block (iLB) Covered in This Chapter
I
O
Platform Controller Unit
UART
GP
IO
IO
RT
C
C
HP
E
E
T
82
59
59
I/
O A
P
IC
82
54
54
iLB
2
I
O
I
O
I
O
I
O
I
O
PMC
I
O
SMBus
0
I
O
LP
C
I
O
S
E
RI
RQ
I
O
SPI
I
O