PI7C9X7954AFDE Pericom Semiconductor, PI7C9X7954AFDE Datasheet - Page 46

• 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

7.1.4.
7.1.5.
7.1.6.
September 2009 – Revision 1.3
Pericom Semiconductor
INTERRUPT STATUS REGISTER – OFFSET 02h
FIFO CONTROL REGISTER – OFFSET 02h
LINE CONTROL REGISTER – OFFSET 03h
BIT
6
7
BIT
7:0
Priority
Level
BIT
0
1
2
3
5:4
7:6
BIT
X
1
2
3
4
5
6
7
FUNCTION
CTS Interrupt
Reserved
FUNCTION
Interrupt Status
FUNCTION
FIFO Mode Enable
Rx FIFO Flush
Tx FIFO Flush
Reserved
Tx Trigger Level
Rx Trigger Level
FUNCTION
Interrupt Status Bits
BIT-7
1
1
1
1
1
1
1
1
09-0088
BIT-6
1
1
1
1
1
1
1
1
BIT-5
0
0
0
0
0
0
1
0
RW
RW
RO
WO
WO
WO
WO
WO
WO
TYPE
TYPE
TYPE
TYPE
Page 46 of 70
BIT-4
0
0
0
0
0
1
0
0
DESCRIPTION
0b: Disable CTS/DSR interrupt
1b: Enable CTS/DSR interrupt
Reset to 0b.
DESCRIPTION
0b: An interrupt is pending
1b: No interrupt pending
Reset to C1h.
DESCRIPTION
0b: Disable the FIFO mode
1b: Enable the FIFO mode
Reset to 0b.
0b: No action
1b: Reset the receive FIFO, self-clear after resetting the FIFO
Reset to 0b.
0b: No action
1b: Reset the transmit FIFO, self-clear after resetting the FIFO
Reset to 0b.
Reset to 0b.
In the Enhanced Mode.
00b: 16
01b: 32
10b: 64
11b: 112
Reset to 00b.
In the Non-Enhanced mode
00b: 1
01b: 4
10b: 8
11b: 14
Reset to 00b.
DESCRIPTION
BIT-3
0
0
1
0
0
0
0
0
BIT-2
1
1
1
0
0
0
0
0
BIT-1
1
0
0
1
0
0
0
0
BIT-0
In the Enhanced mode
00b: 15
01b: 31
10b: 63
11b: 111
0
0
0
0
0
0
0
1
PCI Express® Quad UART
Interrupt Source
Rx data error
Rx data available
Rx time-out
Tx FIFO empty
Modem status change
Xoff or special
character detected
CTS or RTS state
changed
No interrupt pending
PI7C9X7954
Datasheet