Z8F0431SJ020SG Zilog, Z8F0431SJ020SG Datasheet - Page 123

• Manufacturer Part Number: Z8F0431SJ020SG
• Description: IC ENCORE XP MCU FLASH 4K 28SOIC
• Manufacturer: Zilog
• Series: Encore!®r

Specifications of Z8F0431SJ020SG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOIC (7.5mm Width)
• For Use With: 770-1002 - ISP 4PORT ZILOG Z8 ENCORE! MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Other names: 269-4627-5

Table 70. Flash Status Register (FSTAT)
BITS
FIELD
RESET
R/W
ADDR
PS025111-1207
Flash Page Select Register
R
0
7
Reserved—Must be 0.
FSTAT—Flash controller status
000000 = Flash controller locked
000001 = First unlock command received (73H written)
000010 = Second unlock command received (8CH written)
000011 = Flash controller unlocked
000100 = Sector protect register selected
001xxx = Program operation in progress
010xxx = Page Erase operation in progress
100xxx = Mass Erase operation in progress
The Flash page select register shares address space with the Flash sector protect register.
Unless the Flash controller is locked and written with 5EH, any writes to this address will
target the Flash page select register.
The register selects one of the eight available Flash memory pages to be programmed or
erased. Each Flash page contains 512-bytes of Flash memory. During a page erase
operation, all Flash memory having addresses with the most significant 7-bits given by
FPS[6:0] are chosen for Program/Erase operation.
Reserved
R
6
0
R
5
0
R
0
4
FF8H
R
3
0
FSTAT
R
Z8 Encore!
0
2
Product Specification
R
1
0
®
F0830 Series
Flash Memory
R
0
0
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