Pericom Semiconductor BIT FUNCTION TYPE DESCRIPTION 12 Enable " />
參數(shù)資料
型號(hào): PI7C9X7954AFDE
廠商: Pericom
文件頁數(shù): 27/70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(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 33 of 70
May 2013 – Revision 1.4
Pericom Semiconductor
BIT
FUNCTION
TYPE
DESCRIPTION
12
Enable User Replay
Timer
RW
When asserted, the user-defined replay time-out value would be
employed. The default value may be changed by auto-loading from
EEPROM.
Reset to 0b.
15:13
Reserved
RO
Reset to 000b.
6.2.38. ACKNOWLEDGE LATENCY TIMER – OFFSET B0h
BIT
FUNCTION
TYPE
DESCRIPTION
29:16
User ACK Latency
Timer
RW
A 14-bit register contains a user-defined value. The default value
may be changed by auto-loading from EEPROM.
Reset to 0000h..
30
Enable User ACK
Latency
RW
When asserted, the user-defined ACK latency value would be
employed. The default value may be changed by auto-loading from
EEPROM.
Reset to 0b.
31
Reserved
RO
Reset to 0b.
6.2.39. UART DRIVER SETTING – OFFSET B4h
BIT
FUNCTION
TYPE
DESCRIPTION
3:0
UART 0
Transmitter Driver
Enable
RW
UART 0 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.
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.
11:8
UART 2
Transmitter Driver
Enable
RW
UART 2 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.
27:12
Reserved
RW
Reserved
31:28
UART 3
Transmitter Driver
Enable
RW
UART 3 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.
13-0093
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