mcs7840 MosChip, mcs7840 Datasheet - Page 18

• Manufacturer Part Number: mcs7840
• Description: Usb-2.0 To Four Serial Ports
• Manufacturer: MosChip

Page 18
MCS7840
USB-2.0 to Four Serial Ports
Scratch Pad Register (SPR):
The scratch pad register does not infl uence operation of the UART in RS-232 mode in any way, and is used
for temporary data storage. When using RS-422/485 Mode, bit[6] and bit[7] of the Scratch Pad Register are
used for mode setting and DTR active level settings.
Register:
Description:
Offset:
Permissions:
Access Condition:
Default Value:
Bit[7]
SPR
Scratch Pad Register
7
Read/Write
0x00
Bit[6]
Bit[5]
Scratch Pad Register Data
Bit[4]
Bit[3]
Bit[2]
Bit[1]
Rev.
Bit[0]
1.2