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EM83812EP Datasheet(PDF) 3 Page - ELAN Microelectronics Corp |
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EM83812EP Datasheet(HTML) 3 Page - ELAN Microelectronics Corp |
3 / 11 page EM83812 ALL-INONE PLUG & PLAY SCRLLING SERIAL MOUSE CONTROLLER 3 * This specification are subject to be changed without notice. 9.3.1999 Preliminary Preliminary Preliminary Preliminary Preliminary FUNCTION DESCRIPTIONS (I) Serial Scrolling Mouse : In Microsoft mode, the transmission cycle consists of four bytes in one report. Each byte contains one start bit, 7 data bits and two stop bits. The first byte contains "L", "R" key status and four bits of the two most significant bits in horizontal counter and vertical counter. The second byte represents the value accumulated by horizontal counter, the third byte is the data of the vertical counter. The last byte contains "M" key status and Z-axis value. The vertical data is transmitted in 2's complement. Output byte arrange Bit no. ...... 654321 0 1st byte ...... 1 L R V7' V6' H7 H6 2nd byte .... 0 H5 H4 H3 H2 H1 H0 3rd byte .... 0 V5' V4' V3' V2' V1' V0' 4th byte .... 0 0 M Z3 Z2 Z1 Z0 Plug & Play ID code When RTS input from low to high, EM84520 will send a string ID code. Customer can specify the contains of the code area and the total lenth below 100 bytes by changing the code layer. Field Name Length Field Data Description Other ID <17 4D, 5A, 40, 00, 00, 00 ID for legacy Begin ID 1 08 Begin PnP ID PnP Revision 2 01, 24 Version 1.00 EISA ID 3 25, 2D, 23 EMC Product ID 4 10, 10, 10, 11 0001 Serial Number 9 3C None provided Class ID <34 3C, 2D, 2F, 35, 33, 25 Mouse Class Driver ID <42 3C, 30, 2E, 30, 10 26, 10, 21 PnP0F0A User Name <42 3C, 25, 2D, 23, 00, 33, 23, 32, EMC SCROLLING 2F, 2C, 2C, 29, 2E, 27, 00, 33, SERIAL MOUSE 25, 32, 29, 21, 2C, 00, 2D, 2F, 35, 33, 25 Check sum 2 21, 15 2 bytes checks um End PnP 1 09 End PnP ID (II). Z-axis Input Function : (a) Photo couples input : Z-axis counter accumulates the Z1, Z2 phase changed by movement. (b) Key-switches input : Pressing Z1, Z2 will start to fill the Z-axis counter with the value beginning at one. Toggling "M" key can increase the value any time by one. The limit value is ±7. (c) The relationship between the value and the transmission rate as follows : |
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