PI7C9X7952AFDE Pericom Semiconductor, PI7C9X7952AFDE Datasheet - Page 46

• 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

7.1.8.
September 2009 – Revision 1.3
Pericom Semiconductor
LINE STATUS REGISTER – OFFSET 05h
BIT
5
6
7
BIT
0
1
2
3
4
5
6
FUNCTION
AFE
Reserved
Enhanced
Transmission
FUNCTION
Rx Data Available
Rx FIFO Overrun
Rx Parity Error
Rx Frame Error
Rx Break Error
Tx Empty
Tx Complete
09-0087
RW
RW
RO
RO
RO
RO
RO
RO
RO
TYPE
TYPE
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DESCRIPTION
Autoflow Control Enable. When the AFE is enabled, autoflow
control is enabled. When it is disabled, the diagnostic mode is
enabled. In the diagnostic mode, transmitted data is immediately
received.
When AFE is set to “1”, MCR Bit 1 is used to enable and disable
the auto-RTS.
Reset to 0b.
Reset to 0b.
0b: Insert 1, 1.5 or 2 stop-bits between two transmitted
characters.
1b: Insert 0.5 stop-bits between two transmitted characters.
Note: Enabling feature may result in certain compatibility issues.
This feature is only recommended when using two Pericom
UART devices.
Reset to 0b.
DESCRIPTION
0b: No data in the receive FIFO
1b: Data in the receive FIFO
Reset to 0b.
0b: No overrun error
1b: Overrun error
Reset to 0b.
0b: No parity error
1b: Parity error
Reset to 0b.
0b: No framing error
1b: Framing error
Reset to 0b.
0b: No break condition
1b: Break condition
Reset to 0b.
0b: Tx Holding Register is not empty.
1b: Tx Holding Register is empty.
Reset to 0b.
0b: Tx Shift Register is not empty.
1b: Tx Shift Register is empty.
Reset to 0b.
MCR Bit 5
(AFE)
1
1
0
1
0
x
MCR Bit 1
(RTS)
Configuration
Auto-RTS and auto-CTS are
enabled (autoflow control
enabled).
Only auto-CTS is enabled.
Auto-RTS and auto-CTS are
disabled.
PCI Express® Dual UART
PI7C9X7952
Datasheet