PI7C9X7958ANBE Pericom Semiconductor, PI7C9X7958ANBE Datasheet - Page 51

• Manufacturer Part Number: PI7C9X7958ANBE
• Description: IC PCIE-TO-UART BRIDGE 160LFBGA
• Manufacturer: Pericom Semiconductor

Specifications of PI7C9X7958ANBE

• Applications: PCIe-to-Uart Bridge
• Interface: Advanced Configuration Power Interface (ACPI)
• Voltage - Supply: 1.8V, 3.3V
• Package / Case: 160-LFBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11-0039
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.
March 2011 – Revision 1.4
Pericom Semiconductor
Table 7-3 UART Base Address in Memory Mode
UART
UART0
UART1
UART2
UART3
UART4
UART5
UART6
UART7
Figure 7-2 UART Register Block Arrangement in Memory Mode
UART Register Offset
UART I/O Base Address
BAR1 + 0000h
BAR1 + 0200h
BAR1 + 0400h
BAR1 + 0600h
BAR1 + 0800h
BAR1 + 0A00h
BAR1 + 0C00h
BAR1 + 0E00h
(BAR1 + UART Register Offset)
UART Memory Base Address
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0000h
0200h
0800h
0A00h
0C00h
0E00h
0400h
0600h
UART0 Registers
UART2 Registers
UART3 Registers
UART6 Registers
UART7 Registers
UART1 Registers
UART4 Registers
UART5 Registers
PCI Express® Octal UART
PI7C9X7958
Datasheet