PI7C9X7952AFDE Pericom Semiconductor, PI7C9X7952AFDE Datasheet - Page 58

• Manufacturer Part Number: PI7C9X7952AFDE
• Description: IC PCIE-TO-UART BRIDGE 128LQFP
• Manufacturer: Pericom Semiconductor

Specifications of PI7C9X7952AFDE

• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.2.19. TRANSMIT INTERRUPT TRIGGER LEVEL – OFFSET 10h
7.2.20. RECEIVE INTERRUPT TRIGGER LEVEL – OFFSET 11h
7.2.21. FLOW CONTROL LOW TRIGGER LEVEL – OFFSET 12h
7.2.22. FLOW CONTROL HIGH TRIGGER LEVEL – OFFSET 13h
7.2.23. CLOCK PRESCALE REGISTER – OFFSET 14h
7.2.24. RECEIVE FIFO DATA COUNTER – OFFSET 15h, SFR[6] = 0
The function of this register is selected by the Special Function Register (Offset 07h) bit 6. When SFR[6] is
set to ‘1’, this register functions as the Receive FIFO Data Counter. Otherwise, it functions as the Line
September 2009 – Revision 1.3
Pericom Semiconductor
BIT
3
7:4
BIT
7:0
BIT
7:0
BIT
7:0
BIT
7:0
BIT
2:0
7:3
FUNCTION
Special Character
Detect
Reserved
FUNCTION
TTL
FUNCTION
RTL
FUNCTION
FCL
FUNCTION
FCH
FUNCTION
CPRN
CPRM
09-0087
RO
RO
RW
RW
RW
RW
RW
RW
TYPE
TYPE
TYPE
TYPE
TYPE
TYPE
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DESCRIPTION
When detecting the special characters from a remote transmitter,
this bit is set to ‘1’. Otherwise, this bit is set to ‘0’.
The bit is read-clear.
If the Xoff/Special Character Interrupt is enabled, the status is
also reflected in the Interrupt Status Register (Priority Level 6).
1b: Event true
0b: Event false
Reset to 0b.
Reset to 0000b.
DESCRIPTION
Transmitter Interrupt Trigger Level.
Reset to 00h.
DESCRIPTION
Receiver Interrupt Trigger Level.
Reset to 00h.
DESCRIPTION
Automatic Flow Control Low Trigger Level.
Reset to 00h.
DESCRIPTION
Automatic Flow Control High Trigger Level.
Reset to 00h.
DESCRIPTION
N number in calculating the Prescaler, which is used to generate
the Baud Rate.
Reset to 000b.
M number in calculating the Prescaler, which is used to generate
the Baud Rate.
It is recommended that the value of the CPRM be set to “00001”
or “00010”.
Reset to 00001b.
PCI Express® Dual UART
PI7C9X7952
Datasheet