Z8F0823PJ005SG Zilog, Z8F0823PJ005SG Datasheet - Page 157

• Manufacturer Part Number: Z8F0823PJ005SG
• Description: IC ENCORE MCU FLASH 8K 28-DIP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F0823PJ005SG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: 269-4218; Z8F0823PJ005SG

PS025203-0405
DEBUG Mode
Figure 24.Interfacing the On-Chip Debugger’s DBG Pin with an RS-232 Interface (2)
The operating characteristics of the devices in DEBUG mode are:
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Entering DEBUG Mode
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Exiting DEBUG Mode
The device exits DEBUG mode following any of these operations:
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RS-232 TX
RS-232 RX
The eZ8 CPU fetch unit stops, idling the eZ8 CPU, unless directed by the OCD to execute
specific instructions
The system clock operates unless in STOP mode
All enabled on-chip peripherals operate unless in STOP mode
Automatically exits HALT mode
Constantly refreshes the Watch-Dog Timer, if enabled
The device enters DEBUG mode after the eZ8 CPU executes a BRK (Breakpoint) instruc-
tion.
If the DBG pin is held Low during the most recent clock cycle of system reset, the part
enters DEBUG mode upon exiting system reset.
Clearing the DBGMODE bit in the OCD Control Register to 0.
Power-on reset
Voltage Brown-Out reset
Watch-Dog Timer reset
Transceiver
RS-232
P R E L I M I N A R Y
Open-Drain
Buffer
VDD
Z8 Encore!
10KOhm
DBG Pin
Product Specification
®
Z8F0823 Series
On-Chip Debugger
140