PI7C9X7952AFDE Pericom Semiconductor, PI7C9X7952AFDE Datasheet - Page 49

• Manufacturer Part Number: PI7C9X7952AFDE
• Description: IC PCIE-TO-UART BRIDGE 128LQFP
• Manufacturer: Pericom Semiconductor

Specifications of PI7C9X7952AFDE

• Applications: PCIe-to-Uart Bridge
• Interface: Advanced Configuration Power Interface (ACPI)
• Voltage - Supply: 1.8V, 3.3V
• Package / Case: 128-LQFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.2. Registers in Memory-Mapping Mode
Each UART channel has a dedicated 512-byte register block in Memory mode. The register block can be
accessed by the UART Memory Base Address, which is obtained by adding the UART Register Offset to
the content of the Base Address Register 1 (BAR1). The following diagram shows the arrangement of
individual UART register blocks.
September 2009 – Revision 1.3
Pericom Semiconductor
Table 7-3 UART Base Address in Memory Mode
UART
UART0
UART1
Figure 7-2 UART Register Block Arrangement in Memory Mode
UART Register Offset
UART I/O Base Address
BAR1 + 0000h
BAR1 + 0200h
(BAR1 + UART Register Offset)
09-0087
UART Memory Base Address
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0000h
0200h
UART0 Registers
UART1 Registers
PCI Express® Dual UART
PI7C9X7952
Datasheet