mcs7720 MosChip, mcs7720 Datasheet - Page 12

• Manufacturer Part Number: mcs7720
• Description: Usb-1.1 To Dual Serial Ports
• Manufacturer: MosChip

Page 12
MCS7720
USB-1.1 to Dual Serial Ports
Modem Control Register:
Register:
Description:
Offset:
Permissions:
Bit[7]
Bit
0
1
2
3
4
5
6
7
Unused
Bit[6]
flow control
MCR
Modem Control Register
4
Read/Write
Loop Back
CTS/RTS
Unused
Unused
Internal
Enable
Name
Out1
Out2
DTR
RTS
Flow Control
CTS/RTS
Bit[5]
Logic 0 = Forces DTR# output to inactive (high)
Logic 1 = Forces DTR# output to active (low)
Logic 0 = Forces RTS# output to inactive (high)
Logic 1 = Forces RTS# output to active (low)
Unused
Unused
Logic 0 = Normal operating mode
Logic 1 = Enable Local Loop-Back Mode
Logic 0 = CTS/RTS flow control Disabled in 550-Mode
Logic 1 = CTS/RTS flow control Enabled in 550-Mode
Unused
Unused
Loop Back
Internal
Enable
Bit[4]
550 Mode
(Interrupt Enable)
Description
Bit[3]
Out2
Bit[2]
Out1
Bit[1]
RTS
Rev.
Bit[0]
DTR
1.1