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**                                                                     **
**   Application notes for Zilog Microcontrollers (informal document)  **
**                                                                     **
**    To find the application notes for your device search for the     **
**    'core' part name.  As an example the Z86E3016 28 pin SOIC can    **
**    be found if you search using just "86E30". (without the quotes)  **
**                                                                     **
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 86E3016
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 *----------------- Programmable OTP Options ------------------------*

 To setup for programming the "Programmable OTP Options" you must
 set the requied bits in User RAM at address location 1000 hex.

 Format of the Programmable OTP Options Byte:

 Bit 7 = "Don't Care"
 Bit 6 = "Don't Care"
 Bit 5 = Crystal Oscillator Feedback Resistor Disable
 Bit 4 = Permanently Enabled WDT
 Bit 3 = Auto Latch Disable
 Bit 2 = RC Oscillator
 Bit 1 = RAM Protect
 Bit 0 = "Don't Care" bit; see below to program Protection

 To program the "Programmable OTP Options" in TaskLink you
 must set the Special Data #1 flag to Y.

 To program the "Programmable OTP Options" in Terminal mode
 set the "Program Configuration" flag to Y.

 *-------------------- EPROM Protect --------------------------------*

 Programming the EPROM Protect feature of the device requires the
 "Security fuse" flag must be enabled during a  progamming operation.

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