Z8F0223SJ005EG Zilog, Z8F0223SJ005EG Datasheet - Page 147

• Manufacturer Part Number: Z8F0223SJ005EG
• Description: IC ENCORE MCU FLASH 2K 28SOIC
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F0223SJ005EG

• 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: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: 269-4082; Z8F0223SJ005EG

Table 79. Flash Control Register (FCTL)
Table 80. Flash Status Register (FSTAT)
Flash Control Register Definitions
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
PS024314-0308
Flash Control Register
Flash Status Register
W
R
7
0
7
0
The Flash Controller must be unlocked using the Flash Control (FTCTL) register before
programming or erasing the Flash memory. Writing the sequence
to the Flash Control register unlocks the Flash Controller. When the Flash Controller is
unlocked, the Flash memory can be enabled for Mass Erase or Page Erase by writing the
appropriate enable command to the FCTL. Page Erase applies only to the active page
selected in Flash Page Select register. Mass Erase is enabled only through the On-Chip
Debugger. Writing an invalid value or an invalid sequence returns the Flash Controller to
its locked state. The Write-only Flash Control Register shares its Register File address
with the read-only Flash Status Register.
FCMD—Flash Command
73H = First unlock command
8CH = Second unlock command
95H = Page Erase command (must be third command in sequence to initiate Page Erase)
63H = Mass Erase command (must be third command in sequence to initiate Mass Erase)
5EH = Enable Flash Sector Protect Register Access
The Flash Status register indicates the current state of the Flash Controller. This register
can be read at any time. The read-only Flash Status Register shares its Register File
address with the write-only Flash Control Register.
Reserved
W
R
6
0
6
0
W
R
5
0
5
0
W
R
4
0
4
0
FCMD
FF8H
FF8H
W
R
3
0
3
0
FSTAT
Z8 Encore! XP
W
R
2
0
2
0
Product Specification
73H 8CH
W
R
1
0
1
0
®
, sequentially,
F0823 Series
Flash Memory
W
R
0
0
0
0
137