Data Sheet

Release Date:
July, 2002
ds_pl2303_v14
PL-2303 Product Datasheet - 8 - Document Revision 1.3
Table 5. Device Configuration Register
Name Bits Definition Default
23 RESERVED Reserved 0
22 TRI_OUT RS-232 Output Tri-state:
1: RS-232 output tri-state
0: RS-232 output in output mode
0
21 RW_MODE Remote Wakeup Mode:
0: When engages remote wakeup, the device issues disconnect
signal
1: When engages remote wakeup, the device issues resume
signal
1
20 WURX Enable Wake Up Trigger on RXD:
0 – Disabled;
1 – Enable Wake Up Trigger on RXD state changes.
0
19 WUDSR Enable Wake Up Trigger on DSR:
0 – Disabled;
1 – Enable Wake Up Trigger on DSR state changes.
0
18 WURI Enable Wake Up Trigger on RI:
0 – Disabled;
1 – Enable Wake Up Trigger on RI state changes.
1
17 WUDCD Enable Wake Up Trigger on DCD:
0 – Disabled;
1 – Enable Wake Up Trigger on DCD state changes.
0
16 WUCTS Enable Wake Up Trigger on CTS:
0 – Disabled;
1 – Enable Wake Up Trigger on CTS state changes.
0
15 RESERVED Always set to one 1
14 RESERVED Always set to zero 0
13 RESERVED Always set to zero 0
12 RW_INH Remote Wake Inhibit:
1 – Inhibit the USB Remote Wakeup function
0 – Enable the USB Remote Wakeup function
0
11:6 RESERVED Always set to zero 0
5:4 RTSM RTS Control Method:
00b – RTS is controlled by ControlBitMap. Signal is active low;
01 – RTS is controlled by ControlBitMap. Signal is active high;
10 – Drive RTS active when Downstream Data Buffer is NOT
EMPTY; otherwise Drive RTS inactive.
11 – Drive RTS inactive when Downstream Data Buffer is NOT
EMPTY; otherwise Drive RTS active.
0
3:1 RESERVED Always set to zero 0
0 RSPDM RS-232 Transceiver Shut-Down Mode:
1: Shut down the transceiver when USB SUSPEND is engaged
0: Do not shut down the transceiver even when USB SUSPEND
is engaged
1