ADLINK Express-CBR - Manual (Page 27)

Chapter 3 Hardware
Express-CBR Reference Manual 23
*Located on the baseboard.
COM Express A-B Connector
This section provides descriptions of interfaces within the COM Express A-B connector. The COM Express
connector interface comprises two identical 220-pin connectors (A-B and C-D). The COM Express A-B
connector provides the following features:
• LPC interface
• SATA interface
• USB interface
• Power interface
• Power Management
• Video interface
• HD Audio interface
• Gigabit Ethernet interface
• I²C interface
• PCI Express
• Express Card
• SMBus
• GPIO
LPC Interface
The Express-CBR offers the LPC (Low Pin Count) bus through the Intel ® BD82QM57 (PCH). Many
devices already exist for this Intel defined bus. The LPC bus corresponds approximately to a serialized ISA
bus yet with a significantly reduced number of signals. Because of the software compatibility to the ISA bus,
I/O extensions such as additional serial ports can be easily implemented on an application specific baseboard
using this bus.
SATA Interface
Four Serial ATA connections are provided through the Intel BD82QM57 (PCH). SATA is an enhancement of
the parallel ATA therefore offering higher performance. As a result of this enhancement the traditional
restrictions of parallel ATA are overcome with respect to speed and EMI. SATA starts with a transfer rate of
150 MB/s and can be expanded up to 300 MB/s in order to accommodate future developments. SATA is
completely protocol and software compatible to parallel ATA.
03E8-03EF Serial Port 3 (COM3)*
03F0-03F5 Floppy Disk Controller*
03F6 IDE Hard Disk Controller
03F7 Floppy Disk Controller*
03F8-03FF Serial Port 1 (COM1)*
04D0-04D1 Edge/Level Trigger PIC
0778-077F Parallel Port (ECP Extensions) (Port 378+400)*
0CF8-0CFF PCI Configuration Registers
0CF9 Reset Control Register
Table 3-3. I/O Address Map (Continued)