mcs7780 MosChip, mcs7780 Datasheet - Page 8

• Manufacturer Part Number: mcs7780
• Description: Usb 1.1 To Irda Port
• Manufacturer: MosChip

Page 8
MCS7780
USB 1.1 to IrDA Port
XCVR Register: offset 0x02
SMODE0
SMODE1
RXFAST
EEDATA
MODE0
MODE1
TXCUR
INVRX
INVTX
STFIR
Name
XCVR
[15:12]
[6:4]
Bit
10
11
0
1
2
3
7
8
9
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
Default
0
0
0
0
0
0
1
0
0
0
Used to configure the transceiver.
The usage varies with the transceiver make and is reflected in
the transceiver truth table.
Used to configure the transceiver.
The usage varies with the transceiver make and is reflected in
the transceiver truth table.
1 = Puts the transceiver in Configuration Mode.
0 = Puts the transceiver in Data Transfer Mode.
1 = Causes the device to use RXFAST as the input pin for
0 = Causes the device to use RXSLOW as the receive signal.
Sets the current control bits of the pad that drives TX-LED.
This controls the current supplied to TX-LED.
Used to configure the transceiver.
The usage varies with the transceiver make and is reflected in
the transceiver truth table.
Value of MODE0 to be configured to put it into shut down.
Varies with transceiver make.
Value of MODE1 to be configured to put it in shut down.
Varies with transceiver make.
1 = inverts the data bits being fed into transceiver for transmit.
0 = the transmit line works as active high signal.
1 = RXD line from transceiver is treated as an active low signal
Loaded from the EEPROM.
0 = RXD line from transceiver is treated as an active high
signal.
receive from transceiver.
Description
Rev. 1.2