Advantech PCI Series, User Manual

Page: 12 / 62

PCI Communication
User Manual 2
1.1 Description
1.1.1 PCI Bus
The PCI Bus is a high-performance bus that provides a processor-independent data
path between the CPU and high-speed peripherals. PCI is a robust interconnect
mechanism designed specifically to accommodate multiple high-performance periph-
erals for serial communication, SCSI, LAN, and so on.
Advantech’s serial communication card leverages the “Plug & Play” capability
defined in the PCI 2.1/2.2 bus specification. The board requires only one PCI slot and
provides independent serial channels. All channels are addressed in a continuous
32-byte I/O block for simplified software access. Furthermore, all channels may
share one PCI interrupt. An interrupt status register is available for determining the
interrupt source.
The Advantech PCI communication card applies the RE-232/422/485 standard,
which provides deeper FIFOs compared to serial ports. These upgraded FIFOs
greatly reduce the CPU overhead and are ideal for heavy multitasking environments.
1.2 Features
PCI Card Features
 PCI Specification 2.1/2.2 compliant
 Speeds of up to 921.6 Kbps for extremely fast data transmission
 Supports any baud rate
 2 x RS-232 or RS- 232/422/485 ports/ XR17V352 UART with 256-byte FIFOs
 4 x RS-232 or RS- 232/422/485 ports/ XR17V354 UART with 256-byte FIFOs
 8 x RS-232 or RS- 232/422/485 ports/ XR17V358 UART with 256-byte FIFOs
 OS support: Windows XP/7/8/10 and Linux (refer to the software release note
for information on the supported OS versions)
 Utility-ICOM tools