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| Z86E3016PSG Datasheet, PDF (126/348 Pages) Zilog, Inc. – Z86E3016PSG | |||
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Z8 Family of Microcontrollers
User Manual
108
Low EMI Port 3. Port 3, D6 can be conï¬gured as a Low EMI Port by
resetting this bit (D6 = 0) or conï¬gured as a Standard Port by setting this
bit (D6 = 1). The default value is 1.
Low EMI OSC. This D7 bit of the PCON Register controls the Low EMI
oscillator. A 1 in this location conï¬gures the oscillator with standard
drive, while a 0 conï¬gures the oscillator with low noise drive. The Low-
EMI mode will reduce the drive of the oscillator (OSC). The default value
is 1. XTAL ÷ 2 mode is not affected by this bit.
The maximum external clock frequency is 4 MHz when running in the
Low EMI oscillator mode.
Please refer to the selected device product speciï¬cation for availability of
the Low EMI feature and programming options.
Input Protection
All CMOS ROM Z8® MCUs have I/O pins with diode input protection.
There is a diode from the I/O pad to VCC and to VSS. See Figure 63.
I/O Ports
UM001602-0904
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