CFA634YFHKN set at 9600 Baud

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  Part Change Notice #11363: CFA634 HW Version 4 Firmware Version 4 Update

  Products Affected:	CFA634-TFH-KS, CFA634-YFH-KS, CFA634-TFH-KU, CFA634-YFH-KU, CFA634-YFH-KC, CFA634-TFH-KC, CFA634-YFH-KL, CFA634-TFH-KL, CFA634-TFH-KP, CFA634-YFH-KP, CFA634-TFH-KN, CFA634-YFH-KN, CFA634-YFH-KN_SKD204
  Date Issued:	September 17, 2025
  Summary:	CFA634 HW Version 4 Firmware Version 4 Update
  Description:	1) Firmware update for the I2C interface. 2) Deprecating command 30. 3) The busy line will be low while CS is high.
  Reason:	1) The I2C interface did not allow multiple characters to be sent in a single transaction. The firmware will now allow multiple characters to be sent. 2) The new LCD controller is not backward compatible. This command is now deprecated. 3) The previous version of hardware left the busy line low while CS was high (in-active state).
  Recommendation:	Customers using Command 30 to write directly to the LCD Controller should contact Crystalfontz support to determine alternate methods for achieving the desired functionality.
  Availability:	Contact Crystalfontz Support for up-to-date information by emailing support@crystalfontz.com.