GL911Tx Datasheet, PDF (7/10 Pages) List of Unclassifed Manufacturers – Wireless Mouse Transmitter Controller

GL911Tx 1.1
3.6 Button Switches
GL911Tx supports up to 5 buttons. But the Left button and K4 , Right button and K5 are shared with
the same pins. They are read to be left/right buttons when XYEN is high and to be K4/K5 when ZWEN
is high.
BUTL/K4
BUTR/K5
BUTM
D2 1N4148
S1
SW
XYEN
BUTL/K4
D6 1N4148
S4
SW
ZWEN
D3 1N4148
S2
SW
BUTR/K5
S5
D7 1N4148
R6 R7 R8
27K 27K 27K
S3
SW
SW
3D3B
4D3B
D2 SHORT
D3 SHORT
D6 NC
D7 NC
S1 V
S2 V
S3 V
S4 NC
S5 NC
3D5B
4D5B
V
V
V
V
V
V
V
V
V
Figure 3-3:GL911Tx Buttons circuit example
3.7 RF Interface
(a) TXEN: The TXEN is a RF transmitter enable pin (Active high). When there is a packet needs to
be transmitted the TXEN will output high to enable the transmitter. The RF module must transmit
stable Radio Frequency signal within 1ms after enable. The driving capability is 12ma.
(b) TXDATA: The TXDATA is a serial output, which is encoded with Genesys Logic’s proprietary
wireless link protocol into RF transmitter. The baud rate is 4800baud.
©2000-2001 Genesys Logic Inc.—All rights reserved
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