Data Sheet

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