Z8F0823PJ005SG Zilog, Z8F0823PJ005SG Datasheet - Page 144

• 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
Caution:
Flash Controller Bypass
Flash Controller Behavior in Debug Mode
Controller executes the Mass Erase operation, the eZ8 CPU idles but the system clock and
on-chip peripherals continue to operate. Using the On-Chip Debugger, poll the Flash Sta-
tus register to determine when the Mass Erase operation is complete. When the Mass
Erase is complete, the Flash Controller returns to its locked state.
The Flash Controller can be bypassed and the control signals for the Flash memory
brought out to the GPIO pins. Bypassing the Flash Controller allows faster Row Program-
ming algorithms by controlling the Flash programming signals directly.
Row programing is recommended for gang programming applications and large volume
customers who do not require in-circuit initial programming of the Flash memory. Mass
Erase and Page Erase operations are also supported when the Flash Controller is bypassed.
Please refer to the document entitled Third-Party Flash Programming Support for Z8
Encore!
available for download at www.zilog.com.
The following changes in behavior of the Flash Controller occur when the Flash Control-
ler is accessed using the On-Chip Debugger:
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For security reasons, flash controller allows only a single page to be opened for write/
erase. When writing multiple flash pages, the flash controller must go through the un-
lock sequence again to select another page.
The Flash Write Protect option bit is ignored.
The Flash Sector Protect register is ignored for programming and erase operations.
Programming operations are not limited to the page selected in the Page Select
register.
Bits in the Flash Sector Protect register can be written to one or zero.
The second write of the Page Select register to unlock the Flash Controller is not
necessary.
The Page Select register can be written when the Flash Controller is unlocked.
The Mass Erase command is enabled through the Flash Control register.
®
for more information about bypassing the Flash Controller. This document is
P R E L I M I N A R Y
Z8 Encore!
Product Specification
®
Z8F0823 Series
Flash Memory
127