Z8FMC04100 ZILOG [Zilog, Inc.], Z8FMC04100 Datasheet - Page 224

• Manufacturer Part Number: Z8FMC04100
• Description: Z8 Encore-R Motor Control Flash MCUs
• Manufacturer: ZILOG [Zilog, Inc.]

202
Z8 Encore!
Product Specification
Analog-to-Digital Converter
ADC Clock
BUSY
ADC Interrupt
ADC Timer 0 Capture
Reference Buffer
Internal Voltage Reference Generator
®
Motor Control Flash MCUs
Figure 38 illustrates the timing of an ADC convert period.
The ADC can generate an interrupt request when a conversion has been completed. An
interrupt request that is pending when the ADC is disabled is not automatically cleared.
The Timer 0 count is captured for every ADC conversion. The capture of the Timer 0
count occurs after the programmed sample time is complete for every conversion and
stored in the ADC Timer Capture Register (ADCTCAP).
The reference buffer, RBUF, supplies the reference voltage for the ADC. When enabled,
the internal voltage reference generator supplies the ADC and the voltage is available on
the V
externally through the V
Register.
The Internal Voltage Reference Generator provides the voltage, VR2, for the RBUF. VR2
is 2 volts.
1
REF
2
pin. When RBUF is disabled, the ADC must have the reference voltage supplied
3
4
Figure 38. ADC Convert Timing
5
REF
Convert Period
6
13-Clock
pin. RBUF is controlled by the REFEN bit in the ADC Control
P R E L I M I N A R Y
7
8
9
10
11
12
13
14
15
PS024604-1005
16
17