PL-2303 ETC, PL-2303 Datasheet - Page 6
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PL-2303
Manufacturer Part Number
PL-2303
Description
PL-2303 USB to RS-232 Bridge Controller
Manufacturer
ETC
Datasheet
1.PL-2303.pdf
(11 pages)
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Supported Data Formats and Programmable Baud Rate Generator
The PL2303 USB-to-RS232 bridge controller supports versatile data formats and has a programmable baud
rate generator. The supported data formats are shown on Table 2. The programmable baud rate generator
supports baud rates up to 1.2M bps as shown in Table 3.
PL-2303 Product Datasheet
Type: I – Input signal
Pin
No.
22
23
24
25
26
27
28
TRI_STATE
LD_MD/
SHTD
VDD_PLL
GND_PLL
PLL_TEST
OSC1
OSC2
Name
O – Output signal
Type
Parity type
I/O
O
Data bits
P
P
Stop bits
I
I
I
Table 2. Supported Data Formats
Tri-State
This pin is referred after reset.
High: RS-232 output inactive during Suspend.
Low: RS-232 output tri-state during Suspend.
Load Mode/SHTD
This pin is input during reset. Pull high with a 220K r esistor to
indicate the heavy load USB device (500mA). Pull down with a
220K r esistor to indicate the light load USB device 100mA).
After reset, this pin becomes output. It output the inverse of
SHTD_N.
5V power for PLL
Ground for PLL
PLL test mode control
Crystal oscillator input
Crystal oscillator output
1
1.5
2
None
Odd
Even
Mark
Space
5, 6, 7, 8, or 16
- 6 -
I/O – Bi-directional signal
Description
Description
P – Power/Ground
Document Revision 1.3
ds_pl2303_v14
Release Date:
July, 2002