Z8F6421AN00ZEM Zilog, Z8F6421AN00ZEM Datasheet - Page 62

• Manufacturer Part Number: Z8F6421AN00ZEM
• Description: KIT ICE Z8 ENCORE 64K 44LQFP
• Manufacturer: Zilog
• Series: Z8 Encore!®r
• Type: In-Circuit Emulator Systemr

Specifications of Z8F6421AN00ZEM

• Contents: Emulator Board, Cables, Software and Documentation
• For Use With/related Products: Z8 Encore! 44-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3392

PS019921-0308
Internal RESET
WDT Clock
VCC = 3.3 V
Oscillator
Primary
Signal
Watchdog Timer Reset
V
V
POR
VBO
(below the VBO threshold voltage) and forces the device into the Reset state. While the
supply voltage remains below the Power-On Reset voltage threshold (V
block holds the device in the Reset state.
After the supply voltage again exceeds the Power-On Reset voltage threshold, the devices
progress through a full system reset sequence, as described in the Power-On Reset section.
Following Power-On Reset, the POR status bit in the Watchdog Timer Control
(WDTCTL) register is set to 1.
VBO and POR threshold voltages (V
page 211.
The Voltage Brownout circuit can be either enabled or disabled during STOP mode. Oper-
ation during STOP mode is set by the VBO_AO Option Bit. For information on configuring
VBO_AO, see
If the device is in normal or HALT mode, the Watchdog Timer can initiate a system reset
at time-out if the WDT_RES Option Bit is set to 1. This capability is the default
Execution
Program
Figure 8. Voltage Brownout Reset Operation
Option Bits
Brownout
Voltage
page 191.
Figure 8
Counter Delay
VBO
displays Voltage Brownout operation. For the
POR
and V
POR
), see
Counter Delay
Z8 Encore! XP
XTAL
Electrical Characteristics
Reset and Stop Mode Recovery
Product Specification
Execution
Program
POR
®
F64XX Series
), the VBO
VCC = 3.3 V
on
48