Z16F2800100ZCOG Zilog, Z16F2800100ZCOG Datasheet - Page 270

• Manufacturer Part Number: Z16F2800100ZCOG
• Description: DEV KIT FOR Z16F ZNEO
• Manufacturer: Zilog
• Series: ZNEO™r
• Type: MCUr

Specifications of Z16F2800100ZCOG

• Contents: Evaluation Board, Software and Documentation
• For Use With/related Products: Z16F Series
• For Use With: 269-4661 - KIT ACC ETHERNET SMART CABLE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4537

Comparator Operation
Operational Amplifier Operation
Interrupts
PS022008-0810
The comparator output reflects the relationship between the non-inverting input and the
inverting (reference) input. If the voltage on the non-inverting input is higher than the
voltage on the inverting input, the comparator output is at a high state. If the voltage on the
non-inverting input is lower than the voltage on the inverting input, the comparator output
is at a low state.
To operate, the comparator must be enabled by setting the CMPEN bit in the comparator
and op-amp register to 1. In addition the CINP and CINN comparator input alternate 
functions must be enabled on their respective GPIO pins. For more information, see
Alternate Functions
The comparator does not automatically power-down. To reduce operating current when
not in use, the comparator is disabled by clearing the CMPEN bit to 0.
To operate, the operational amplifier must be enabled by setting the OPEN bit in the 
comparator and op-amp register to 1. In addition, the OPINP, OPINN, and OPOUT alter-
nate functions must be enabled on their respective general-purpose I/O pins. For more
information, see
The logical value of the operational amplifier output (OPOUT) is read from the Port 3 data
input register if both the operational amplifier and input pin Schmitt trigger are enabled.
For more information, see
fier generates an interrupt via the GPIO Port B3 input interrupt, if enabled.
The output of the operational amplifier is also connected to an analog input (ANA3) of the
ADC multiplexer.
The operational amplifier does not automatically power-down. To reduce operating cur-
rent when not in use, the operational amplifier is disabled by clearing the
comparator and op-amp register to 0.
When the operational amplifier is disabled, the output is high impedance.
The comparator generates an interrupt on any change in the logic output value (from 0 to 1
and from 1 to 0). For information on enabling and prioritization of the comparator 
interrupt, see
Interrupt Controller
GPIO Alternate Functions
on page 69.
P R E L I M I N A R Y
GPIO Alternate Functions
on page 80.
on page 69.
on page 69. The operational ampli-
Product Specification
ZNEO
Analog Functions
OPEN
Z16F Series
bit in the
GPIO
254