Pericom Semiconductor BIT FUNCTION TYPE DESCRIPTION 5 950 Mode" />
參數(shù)資料
型號(hào): PI7C9X7954AFDE
廠商: Pericom
文件頁(yè)數(shù): 46/70頁(yè)
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(jí)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 50 of 70
May 2013 – Revision 1.4
Pericom Semiconductor
BIT
FUNCTION
TYPE
DESCRIPTION
5
950 Mode
RW
1b: Enables 950 mode
0b: Non-950 mode
Reset to 0b.
6
RFD / LSR
Counter Select
RW
1b: OFFSET 15 bit[7:0] acts as the Line Status Register Counter
0b: OFFSET 15 bit[7:0] acts as the Receive FIFO Data Counter
Reset to 0b.
7
TFD / SCR Select
RW
1b: OFFSET 16 bit[7:0] acts as the Transmit FIFO Data Counter
0b: OFFSET 16 bit[7:0] acts as the Sample Clock Register
Reset to 0b.
7:6
Reserved
RW
Reset to 00b.
7.1.11. DIVISOR LATCH LOW REGISTER – OFFSET 00h, LCR[7] = 1
BIT
FUNCTION
TYPE
DESCRIPTION
7:0
Divisor Low
RW
Lower-part of the divisor register
Reset to 00h.
7.1.12. DIVISOR LATCH HIGH REGISTER – OFFSET 01h, LCR[7] = 1
BIT
FUNCTION
TYPE
DESCRIPTION
7:0
Divisor High
RW
Higher-part of the divisor register
Reset to 00h.
7.1.13. SAMPLE CLOCK REGISTER – OFFSET 02h, LCR[7] = 1
BIT
FUNCTION
TYPE
DESCRIPTION
3:0
Sample Clock
RW
This register determines the Sample Clock value (SC) used in
the Baud Rate Generator. Please refer to 5.2.12 Baud Rate
Generation for more detail
0000b: SC = 16
0001b: SC = 15
0010b: SC = 14
0011b: SC = 13
0100b: SC = 12
0101b: SC = 11
0110b: SC = 10
0111b: SC = 9
1000b: SC = 8
1001b: SC = 7
1010b: SC = 6
1011b: SC = 5
1100b: SC = 4
Other settings are
reserved.
Reset to 0h.
7:4
Reserve
R
Reset to 0h.
13-0093
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