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EM84502AP Datasheet(PDF) 6 Page - ELAN Microelectronics Corp |
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EM84502AP Datasheet(HTML) 6 Page - ELAN Microelectronics Corp |
6 / 12 page EM84502 PS/2 MOUSE CONTROLLER 6 * This specification are subject to be changed without notice. 6.18.1998 c). Set Default ( F6 ) The command reinitializes all conditions to the power-on defaults. d). Disable ( F5 ) This command is used in the stream mode to stop transmissions from EM84502. e). Enable ( F4 ) Begins transmissions, if in stream mode. f). Set Sampling Rate ( F3,XX ) In the stream mode, this command sets the sampling rate to the value indicated by byte hex XX, shown in following: Second byte XX Sample Rate 0A 10/sec 14 20/sec 28 40/sec 3C 60/sec 50 80/sec 64 100/sec C8 200/sec g). Read Device Type ( F2 ) EM84502 always echoes “ FA,00 “ following this command. h). Set Remote Mode ( F0 ) Data value are reported only in response to a Read Data command. i). Set Wrap Mode ( EE ) Wrap mode remains until Reset ( FF ) or Reset Wrap Mode( EC ) is received. j). Reset Wrap Mode ( EC ) EM84502 returns to the previous mode of operation after receiving this command. k). Read Data ( EB ) This command is executed in either remote or stream mode. The data is transmitted even if there has been no movement since the last report or the button status is unchanged. Following a Read Data command, the registers are cleared after a data transmission. l). Set Stream Mode ( EA ) This command sets EM84502 in stream mode. m). Status Request ( E9 ) When this command is issued by the system, EM84502 respond with a 3-byte status report as follows: Byte Bit Description 1 0 1 = Right button pressed 1 1 = Middle button pressed 2 1 = Left button pressed |
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