ZUSBOPTSC01ZAC Zilog, ZUSBOPTSC01ZAC Datasheet - Page 22

• Manufacturer Part Number: ZUSBOPTSC01ZAC
• Description: KIT ACC OPTO-ISO USB SMART CABLE
• Manufacturer: Zilog

Specifications of ZUSBOPTSC01ZAC

• Accessory Type: Opto-isolated USB Smart Cable
• Interface Type: USB
• Operating Supply Voltage: 5 V
• Product: Interface Modules
• For Use With/related Products: Z8 Encore! Dev. Kits
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-2287

®
Crimzon
ZLP32300
Product Specification
18
Comparator Inputs
In ANALOG mode, P31 and P32 have a comparator front end. The comparator reference
is supplied to P33 and Pref1. In this mode, the P33 internal data latch and its correspond-
ing IRQ1 are diverted to the SMR sources (excluding P31, P32, and P33) as displayed in
Figure 10
on page 15. In DIGITAL mode, P33 is used as D3 of the Port 3 input register,
which then generates IRQ1.
Note:
Comparators are powered down by entering STOP mode. For P31–P33 to be used in a
Stop Mode Recovery source, these inputs must be placed into DIGITAL mode.
Comparator Outputs
These channels can be programmed to be output on P34 and P37 through the PCON regis-
ter.
RESET (Input, Active Low)
Reset initializes the MCU and is accomplished either through Power-On, Watchdog
Timer, Stop Mode Recovery, Low-Voltage detection, or external reset. During Power-On
Reset and Watchdog Timer Reset, the internally generated reset drives the reset pin Low
for the POR time. Any devices driving the external reset line must be open-drain to avoid
damage from a possible conflict during reset conditions. Pull-up is provided internally.
When the ZLP32300 asserts (Low) the RESET pin, the internal pull-up is disabled. The
ZLP32300 does not assert the RESET pin when under VBO.
Note:
The external Reset does not initiate an exit from STOP mode.
PS020823-0208
Pin Description