Z8F1233QH020SG Zilog, Z8F1233QH020SG Datasheet - Page 124

• Manufacturer Part Number: Z8F1233QH020SG
• Description: IC ENCORE XP MCU FLSH 12K 20QFN
• Manufacturer: Zilog
• Series: Encore!®r

Specifications of Z8F1233QH020SG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 12KB (12K 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: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• 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: 269-4656

Table 71. Flash Page Select Register (FPS)
Table 72. Flash Sector Protect Register (FPROT)
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
PS025111-1207
Flash Sector Protect Register
INFO_EN
SPROT7
R/W
R/W
0
0
7
7
INFO_EN—Information area enable
0 = Information area is not selected
1 = Information area is selected. The information area is mapped into the program
memory address space at addresses FE00H through FFFFH.
PAGE—Page select
This 7-bit field identifies the Flash memory page for page erase and page unlocking.
Program memory address[15:9] = PAGE[6:0]. For the Z8F04xx and Z8F02xx devices, the
upper four bits must always be 0. For the Z8F01xx devices, the upper five bits must
always to 0.
The Flash sector protect register is shared with the Flash page select register. When the
Flash control register is locked and written with 5EH, the next write to this address targets
the Flash sector protect register. In all other cases, it targets the Flash page select register.
This register selects one of the eight available Flash memory sectors to be protected. The
Reset state of each sector protect bit is zero (unprotected) state. After a sector is protected
by setting its corresponding register bit, the register bit cannot be cleared by the user.
SPROT7-SPROT0—Sector protection
Each bit corresponds to a 512-byte Flash sector. For the Z8F04xx devices, all bits are
used. For the Z8F02xx devices, the upper four bits are unused. For the Z8F01xx devices,
the upper six bits are unused.
SPROT6
R/W
R/W
6
0
6
0
SPROT5
R/W
R/W
5
0
5
0
SPROT4
R/W
R/W
0
0
4
4
FF9H
FF9H
SPROT3
PAGE
R/W
R/W
3
0
3
0
SPROT2
R/W
R/W
Z8 Encore!
0
0
2
2
Product Specification
SPROT1
R/W
R/W
1
0
1
0
®
F0830 Series
Flash Memory
SPROT0
R/W
R/W
0
0
0
0
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