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Release Date:
July, 2002
ds_pl2303_v14
PL-2303 Product Datasheet
- 7 -
Document Revision 1.3
Table 3. Baud Rate Setting
dwDTERate
Baud Rate
0012C000h
1228800
000E1000h
921600
00096000h
614400
00070800h
460800
00038400h
230400
0001C200h
115200
0000E100h
57600
00009600h
38400
00007080h
28800
00004B00h
19200
00003840h
14400
00002580h
9600
00001C20h
7200
000012C0h
4800
00000E10h
3600
00000960h
2400
00000708h
1800
000004B0h
1200
00000258h
600
0000012Ch
300
00000096h
150
0000004Bh
75
External EEPROM and Device Configuration
PL-2303 allows storing the configuration data in an external EEPROM. After reset, the first two bytes of
EEPROM are checked. If the value is 067Bh, the EEPROM is valid and the contents of the EEPROM are
loaded as the chip’s default parameters. Otherwise, the chip’s default setting is used. The content of
EEPROM is shown in Table 4 below.
The Device Configuration Register is used to control some vendor-specific functions. The meaning of each
bit in Device Configuration Register is shown in Table 5. Reserved and unused pins always set to the default
value.
Table 4. EEPROM Content
Bytes
Name
Description
1:0
EECHK
When the EEPROM is programmed, these two bytes is configured as 067B.
After reset, they will be checked for the value. If matched, the following
information will be loaded as the default parameters.
3:2
VID
USB Vendor ID
5:4
PID
Product ID
7:6
RN
Release number (BCD)
10:8
DCR
Device Configuration Register
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