mcs7820 MosChip, mcs7820 Datasheet - Page 28

• Manufacturer Part Number: mcs7820
• Description: Usb-2.0 To Two Serial Ports
• Manufacturer: MosChip

Page 28
MCS7820
USB-2.0 to Two Serial Ports
Device Confi guration Bit Fields and Descriptions
Bytes 8, 9, 10, 14, 15 and 16 form six 8-bit DCR Registers. These Bytes are read from the EEPROM, and
loaded into the Global Device Confi guration Registers after Power-On Reset. They can be programmed by
software using the following application number and register indexes as shown in the table.
The following tables describe the function of each bit in the DCR registers. There are three DCR registers
for each Serial Port (IrDA). In the absence of an EEPROM, the default values are taken from the Device
Confi guration Registers.
EEPROM
Location
10
14
15
16
8
9
SER1_DCR[23:16]
SER2_DCR[23:16]
SER1_DCR[15:8]
SER2_DCR[15:8]
SER1_DCR[7:0]
SER2_DCR[7:0]
DCR Bit
SER1_DCR0
SER1_DCR1
SER1_DCR2
SER2_DCR0
SER2_DCR1
SER2_DCR2
DCR Name
Application
Number
0
0
0
0
0
0
Register
Index
25
26
27
4
5
6
Default
Value
0x01
0x85
0x24
0x01
0x84
0x24
Rev.
1.2