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XR22804IL56-F

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P47
© 2015 Exar Corporation
XR22804
28 / 47 exar.com/XR22804
Rev 1B
PIN_PULLDOWN_EN (0x055) - Read/Write
LOOPBACK (0x056) - Read/Write
IR_MODE (0x057) - Read/Write
Bit Default Description
15:10 0
Reserved
These bits are reserved and should be written as ‘0’.
70
UART TX
0: Disable internal pull-down resistor on the UART TX pin
1: Enable internal pull-down resistor on the UART TX pin. (Will not be enabled if pull-up is already enabled.)
60
UART RX
0: Disable internal pull-down resistor on the UART RX pin
1: Enable internal pull-down resistor on the UART RX pin. (Will not be enabled if pull-up is already enabled.)
5:0 0
GPIO[N]
0: Disable internal pull-down resistor on the corresponding GPIO[N] pin
1: Enable internal pull-down resistor on the corresponding GPIO[N] pin. (Will not be enabled if pull-up is
already enabled.)
Bit Default Description
15:3 0
Reserved
These bits are reserved and should be written as ‘0’.
20
DTR_DSR
0: Disable DTR to DSR internal loopback
1: Enable DTR to DSR internal loopback
10
RTS_CTS
0: Disable RTS to CTS internal loopback
1: Enable RTS to CTS internal loopback
00
TX_RX
When this bit is set all transmitted UART data is looped back to the UART receiver. Note that when the internal
loopback is enabled, the Tx data will be disabled and Rx data will be ignored.
0: Disable TX to RX internal loopback
1: Enable TX to RX internal loopback
Bit Default Description
15:3 0
Reserved
These bits are reserved and should be written as ‘0’.
20
TX_Pulse
0: TX pulse width is 3/16 of the bit period
1: TX pulse width is 4/16 of the bit period
10
RX_Invert
0: RX input is not inverted before sampling
1: RX input is inverted before sampling
© 2015 Exar Corporation
XR22804
29 / 47 exar.com/XR22804
Rev 1B
REMOTE_WAKEUP (0x05F) - Read/Write
TX_FIFO_RESET (0x060) - Write Only
TX_FIFO_FILL (0x061) - Read Only
00
En
0: Disable IR mode
1: Enable IR mode
Bit Default Description
15:4 0x000
Reserved
These bits are reserved and should be written as ‘0’.
30
RX_En
0: RX pin remote wakeup is disabled
1: A high to low transition on the RX pin will cause a resume request to be sent to the USB host
21
RI_En
0: RI# pin remote wakeup is disabled
1: A high to low transition on the RI# pin will cause a resume request to be sent to the USB host
1:0 0x0
Reserved
These bits are reserved and should be written as ‘0’.
Bit Default Description
15:1 0x0000
Reserved
These bits are reserved and should be written as ‘0’.
0 000
Reset
0: No effect
1: Resets the TX FIFO to empty
Bit Default Description
15:11 0x00
Reserved
These bits are reserved and should be written as ‘0’.
10:0 0x000
Fill
Number of bytes in the TX FIFO
Bit Default Description
© 2015 Exar Corporation
XR22804
30 / 47 exar.com/XR22804
Rev 1B
TX_WIDE_MODE (0x062) - Read/Write
RX_FIFO_RESET (0x063) - Write Only
RX_FIFO_FILL (0x064) - Read Only
RX_WIDE_MODE (0x065) - Read/Write
Bit Default Description
15:1 0x0000
Reserved
These bits are reserved and should be written as ‘0’.
00
EN
In wide mode, 2 bytes of data are used to transfer one character. This requires 2 bytes of FIFO space, therefore
the FIFO can hold half as many characters in wide mode. In the TX direction bit 0 of the second byte will be
used as bit 9 of the character, if 9-bit mode is enabled. Bits 7:1 of the second byte are not used.
0: Disable TX wide mode
1: Enable TX wide mode
Bit Default Description
15:1 0x0000
Reserved
These bits are reserved and should be written as ‘0’.
0 000
Reset
0: No effect
1: Resets the RX FIFO to empty
Bit Default Description
15:11 0x00
Reserved
These bits are reserved and should be written as ‘0’.
10:0 0x000
Fill
Number of bytes in the RX FIFO
Bit Default Description
15:1 0x0000
Reserved
These bits are reserved and should be written as ‘0’.
00
EN
In wide mode, 2 bytes of Bulk data are used to transfer one character. This requires 2 bytes of FIFO space,
therefore the FIFO can hold half as many characters in wide mode. In the RX direction, bits 3:0 of the second
byte contain the error flags associated with the character. Bits 7:4 of the second byte are not used.
0: Disable RX wide mode
1: Enable RX wide mode
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P47

XR22804IL56-F

Mfr. #:
Buy XR22804IL56-F
Manufacturer:
MaxLinear
Description:
I/O Controller Interface IC Hi-Speed USB 10/100 Eth Brdg w 4CH UART
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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