Pericom Semiconductor BIT FUNCTION TYPE DESCRIPTION 5 AFE RW A" />
參數(shù)資料
型號: PI7C9X7954AFDE
廠商: Pericom
文件頁數(shù): 43/70頁
文件大?。?/td> 0K
描述: IC PCIE-TO-UART BRIDGE 128LQFP
標(biāo)準(zhǔn)包裝: 90
應(yīng)用: PCIe至UART橋接
接口: 高級配置電源接口(ACPI)
電源電壓: 1.8V, 3.3V
封裝/外殼: 128-LQFP 裸露焊盤
供應(yīng)商設(shè)備封裝: 128-LQFP(14x14)
包裝: 托盤
安裝類型: 表面貼裝
PI7C9X7954
PCI Express Quad UART
Datasheet
Page 48 of 70
May 2013 – Revision 1.4
Pericom Semiconductor
BIT
FUNCTION
TYPE
DESCRIPTION
5
AFE
RW
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.
MCR Bit 5
(AFE)
MCR Bit 1
(RTS)
Configuration
1
Auto-RTS and auto-CTS are
enabled (autoflow control
enabled).
1
0
Only auto-CTS is enabled.
0
x
Auto-RTS and auto-CTS are
disabled.
Reset to 0b.
6
Reserved
Reset to 0b.
7
Enhanced
Transmission
RW
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.
7.1.8.
LINE STATUS REGISTER – OFFSET 05h
BIT
FUNCTION
TYPE
DESCRIPTION
0
Rx Data Available
RO
0b: No data in the receive FIFO
1b: Data in the receive FIFO
Reset to 0b.
1
Rx FIFO Overrun
RO
0b: No overrun error
1b: Overrun error
Reset to 0b.
2
Rx Parity Error
RO
0b: No parity error
1b: Parity error
Reset to 0b.
3
Rx Frame Error
RO
0b: No framing error
1b: Framing error
Reset to 0b.
4
Rx Break Error
RO
0b: No break condition
1b: Break condition
Reset to 0b.
5
Tx Empty
RO
0b: Tx Holding Register is not empty.
1b: Tx Holding Register is empty.
Reset to 0b.
6
Tx Complete
RO
0b: Tx Shift Register is not empty.
1b: Tx Shift Register is empty.
Reset to 0b.
13-0093
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