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Elan eKM6211 Manual

Rf mouse rx controller
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GENERAL DESCRIPTOR
The eKM6211 is standard RF Mouse Receiver (Rx) Controller for PS/2 compatible interface.
It's receives the RF packet data from RF Rx module (circuits). And decode the RF packet data and
transmitting the data to PC by PS/2 interface. The eKM6211 have two way to set device ID, it's DIP
switch select and EEPROM(93C46) to storage. It's have built-in RF signal sampling and noise
immunity function to improve the RF data decode efficiency.
FEATURE
Operating voltage: 2.5V~5.5V
Built-in regulator to generate 3.3V
Operating frequency: 4.00Mhz
Support PS/2 compatible interface.
Device ID:
DIP switch to select 8 sets ID
EEPROM interface to storage 255 sets Device ID
Support a LED to display RF packet receive status and ID set mode.
Using jump connect to set Device ID into default ID.
To match with RF Mouse Tx controller:
eKM6611 series : RF Mouse Tx
eKM6711 : Optical RF Mouse Tx
Package:
16 pin DIP and SOP (300mil)
APPLICATION
PS/2 RF Mouse Rx
* This specification are subject to be changed without notice.
Preliminary
1
eKM6211
RF Mouse Rx Controller
2002/11/15

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Summary of Contents for Elan eKM6211

  • Page 1 It’s receives the RF packet data from RF Rx module (circuits). And decode the RF packet data and transmitting the data to PC by PS/2 interface. The eKM6211 have two way to set device ID, it’s DIP switch select and EEPROM(93C46) to storage. It’s have built-in RF signal sampling and noise immunity function to improve the RF data decode efficiency.

  • Page 2: Pin Assignment

    Preliminary RF Mouse Rx Controller PIN ASSIGNMENT DATA RxLED OSCI /RESET OSCO DI/ID0 SK/ID1 CS/ID2 CONN eKM6211 PIN DESCRIPTOR Pin No. Symbol Function RF data input RxLED Rx LED output /RESET Reset pin Ground pin DI/ID0 EEPROM DI pin, DIP switch ID0...
  • Page 3 Wrap Mode: Any byte of data sent by the system, except hex EC (Reset wrap mode) or hex FF (Reset), is returned by eKM6211. (B) PS/2 Mouse Data Report: a. In stream mode: A data report is sent at the end of a sample interval.
  • Page 4 (request-to-send), data is updated.Data is received from the system and no transmission are started by eKM6211 until CLK and DATA both high. If CLK and DATA both are high, the transmission is ready. DATA is valid prior to the falling edge of CLK and beyond the rising edge of CLK. During transmission, eKM6211 check for line contention by checking for an inactive level on CLK at intervals not to exceed 100u sec.
  • Page 5 (0), it allows CLK go to active level. If request-to-send is detected, eKM6211 clocks 11 bits. Following the tenth clock, eKM6211 checks for an active level on the DATA line, and if found, force DATA low, and clock once more. If occurs framing error, eKM6211 continue to clock until DATA is high, then clocks the line control bit and request a Resend.
  • Page 6 (E) PS/2 Mouse Commands Description: There are 16 valid commands that transmit between the system and eKM6211. The "FA" code is always the first response to any valid input received from the system other than a Set Wrap Mode or Resend command.
  • Page 7 RF Mouse Rx Controller b. Resend (FE) (a) Any time eKM6211 receives an invalid command, it returns a Resend command to the system. (b) When eKM6211 receives a Resend command, it retransmits its last packet of data. If the last packet was a Resend command, it transmits the packet just prior to the Resend command.
  • Page 8 Data command, the registers are cleared after a data transmission. l. Set Stream Mode (EA) This command sets eKM6211 in stream mode. m. Status Request (E9) When this command is issued by the system, eKM6211 responds with a 3-byte status report as follows: Byte Description...
  • Page 9 Reset Auto-speed (E6) This command restores normal speed. (Ⅲ). Microsoft PS/2 Scrolling Mouse Mode: (A) Entering procedure: Except in WRAP mode, while eKM6211 received the following consecutive command. a. F3 C8 ---- set sampling rate 200/sec b. F3 64 ---- set sampling rate 100/sec c.
  • Page 10 Power off. b. Reset command (FF). (IV). Microsoft PS/2 IntlliMouse Mode: (A) Entering procedure: Except in WRAP mode, while eKM6211 received the following consecutive command. a. F3 C8 ---- set sampling rate 200/sec b. F3 C8 ---- set sampling rate 200/sec c.

  • Page 11: Application Circuit

    Preliminary RF Mouse Rx Controller a. Power off. b. Reset command (FF). APPLICATION CIRCUIT 330ohm RxLED 4.7Kohm 4.7Kohm 4.00Mhz 20pF RF Data DATA RxLED OSCI 20pF DATA /RESET OSCO PS2/KB DI/ID0 SK/ID1 CS/ID2 CONN Device ID eKM6211 DIP switch ID...