Intel C2518 FH8065501516710 Data Sheet
Product codes
FH8065501516710
Volume 2—UART Controller—C2000 Product Family
Registers
Intel
®
Atom™ Processor C2000 Product Family for Microserver
Datasheet, Vol. 2 of 3
September 2014
464
Order Number: 330061-002US
20.5.2
PCI Configuration and Capabilities
Note:
Intel recommends the UARTs be disabled during normal platform operation. An enabled
UART interferes with platform power management.
20.5.3
Memory-Mapped I/O Registers
No UART registers are located in the memory address space.
20.5.4
Fixed I/O Registers
The following UART registers are located in the I/O address space. All UART I/O
registers have fixed addresses defined in the I/O address space.
§ §
Table 20-3. Registers in Configuration Address Space
Configuration
Space Address
(decimal)
Offset
Address
Register
Size
(bits)
Default
Name
Description
B:0, D:30, F:0
0x80
32
0000_0003h
UART Control. Used to enable and
disable UART ports COM1 and
COM2.
Table 20-4. Registers in Fixed I/O Address Space
Fixed I/O
Address
Name
Description
0x2F8
Receiver Buffer/Transmitter Holding Register
0x2F9
Interrupt Enable Register
0x2FA
Interrupt Identification/FIFO Control Register
0x2FB
Line Control Register
0x2FC
Modem Control Register
0x2FD
Line Status Register
0x2FE
Modem Status Register
0x2FF
Scratchpad Register
0x3F8
Receiver Buffer/Transmitter Holding Register
0x3F9
Interrupt Enable Register
0x3FA
Interrupt Identification/FIFO Control Register
0x3FB
Line Control Register
0x3FC
Modem Control Register
0x3FD
Line Status Register
0x3FE
Modem Status Register
0x3FF
Scratchpad Register