Pericom Semiconductor BIT FUNCTION TYPE DESCRIPTION 0000b: RS2" />
參數(shù)資料
型號: PI7C9X7952AFDE
廠商: Pericom
文件頁數(shù): 26/68頁
文件大?。?/td> 0K
描述: IC PCIE-TO-UART BRIDGE 128LQFP
標準包裝: 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
PI7C9X7952
PCI Express Dual UART
Datasheet
Page 32 of 68
May 2013 – Revision 1.4
Pericom Semiconductor
BIT
FUNCTION
TYPE
DESCRIPTION
0000b: RS232
0001b: RS422
1011b: RS485-4W
1111b: RS485-2W
Reset to 0000b.
7:4
UART 1
Transmitter Driver
Enable
RW
UART 1 DRIVER. The default value may be changed by
auto-loading from EEPROM.
0000b: RS232
0001b: RS422
1011b: RS485-4W
1111b: RS485-2W
Reset to 0000b.
31:8
Reserved
RW
Reserved
6.2.40. Power Management Control Parameter – OFFSET B8h
BIT
FUNCTION
TYPE
DESCRIPTION
5:0
Power Management
Control Parameter
RW
The default value may be changed by auto-loading from EEPROM.
Reset to 000001b.
31:6
Reserved
RO
Reset to 0000000h.
6.2.41. DEBUG REGISTER 1 – OFFSET BCh (Test Purpose Only)
BIT
FUNCTION
TYPE
DESCRIPTION
31:0
Debug Register 1
RO
Used for test purpose only.
Reset to 00000000h.
6.2.42. DEBUG REGISTER 2 – OFFSET C0h (Test Purpose Only)
BIT
FUNCTION
TYPE
DESCRIPTION
31:0
Debug Register 2
RO
Used for test purpose only.
Reset to 00000000h.
6.2.43. DEBUG REGISTER 3 – OFFSET C4h (Test Purpose Only)
BIT
FUNCTION
TYPE
DESCRIPTION
31:0
Debug Register 3
RO
Used for test purpose only.
Reset to 00000000h.
6.2.44. DEBUG REGISTER 4 – OFFSET C8h (Test Purpose Only)
BIT
FUNCTION
TYPE
DESCRIPTION
0
Low Driver Current
HwInt
It indicates the status of the strapping pin LODRV. The default value
may be changed by auto-loading from EEPROM.
1
High Driver Current
HwInt
It indicates the status of the strapping pin HIDRV. The default value
may be changed by auto-loading from EEPROM.
5:2
Driver Transmit
Current
HwInt
It indicates the status of the strapping pins DTX[3:0]. The default
value may be changed by auto-loading from EEPROM.
9:6
De-emphasis
Transmit
Equalization
HwInt
It indicates the status of the strapping pins DEQ[3:0]. The default
value may be changed by auto-loading from EEPROM.
13-0092
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