z8f1601 ZiLOG Semiconductor, z8f1601 Datasheet - Page 43

• Manufacturer Part Number: z8f1601
• Description: Z8 Encore!? Microcontroller With Flash Memory And 10-bit A/d Converter
• Manufacturer: ZiLOG Semiconductor

Reset and Stop Mode Recovery
Overview
Reset Types
Table 7. Reset and Stop Mode Recovery Characteristics and Latency
PS017609-0803
Reset Type
System Reset
Short Reset
Stop Mode Recovery Unaffected, except
The Reset Controller within the Z8F640x family devices controls Reset and STOP Mode
Recovery operation. In typical operation, the following events cause a Reset to occur:
•
•
•
•
•
When the Z8F640x family device is in Stop mode, a Stop Mode Recovery is initiated by
either of the following:
•
•
•
The Z8F640x family provides several different types of Reset operation. Stop Mode
Recovery is considered a form of Reset. The type of Reset is a function of both the current
operating mode of the Z8F640x family device and the source of the Reset. Table 7 lists the
types of Reset and their operating characteristics. The System Reset is longer than the
Short Reset to allow additional time for external oscillator start-up.
Power-On Reset (POR)
Voltage Brown-Out (VBO)
Watch-Dog Timer time-out (when configured via the WDT_RES Option Bit to initiate
a reset)
External RESET pin assertion
On-Chip Debugger initiated Reset (OCDCTL[1] set to 1)
Watch-Dog Timer time-out
GPIO Port input pin transition on an enabled Stop Mode Recovery source
DBG pin driven Low
Control Registers
Reset (as applicable)
Reset (as applicable)
WDT_CTL register
eZ8 CPU Reset Latency (Delay)
Reset
Reset
Reset
Reset Characteristics and Latency
Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
514 WDT Oscillator cycles + 16 System Clock cycles
66 WDT Oscillator cycles + 16 System Clock cycles
514 WDT Oscillator cycles + 16 System Clock cycles
Reset and Stop Mode Recovery
Z8 Encore!
®
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