PI7C9X7954AFDE Pericom Semiconductor, PI7C9X7954AFDE Datasheet - Page 33

• Manufacturer Part Number: PI7C9X7954AFDE
• Description: IC PCIE-TO-UART BRIDGE 128LQFP
• Manufacturer: Pericom Semiconductor

Specifications of PI7C9X7954AFDE

• 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
• Transmitter And Receiver Fifo Counter: Yes
• Package Type: LQFP
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.2.38. ACKNOWLEDGE LATENCY TIMER – OFFSET B0h
6.2.39. UART DRIVER SETTING – OFFSET B4h
September 2009 – Revision 1.3
Pericom Semiconductor
BIT
12
15:13
BIT
29:16
30
31
BIT
3:0
7:4
11:8
27:12
31:28
FUNCTION
UART 0
Transmitter Driver
Enable
UART 1
Transmitter Driver
Enable
UART 2
Transmitter Driver
Enable
Reserved
UART 3
Transmitter Driver
Enable
FUNCTION
Enable User Replay
Timer
Reserved
FUNCTION
User ACK Latency
Timer
Enable User ACK
Latency
Reserved
09-0088
TYPE
TYPE
TYPE
RW
RW
RW
RW
RW
RW
RW
RW
RO
RO
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DESCRIPTION
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.
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.
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.
Reserved
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.
DESCRIPTION
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.
Reset to 000b.
DESCRIPTION
A 14-bit register contains a user-defined value. The default value
may be changed by auto-loading from EEPROM.
Reset to 0000h..
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.
Reset to 0b.
PCI Express® Quad UART
PI7C9X7954
Datasheet