Z8F1233QH020SG Zilog, Z8F1233QH020SG Datasheet - Page 116

• 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

Operation
PS025111-1207
Table 67
by setting the bit 7 of the Flash page select register to 1. When access is enabled, the Flash
information area is mapped into the program memory and overlays the 128-bytes at the
addresses FE00H to FE7FH. When the information area access is enabled, all reads from
these program memory addresses return the information area data rather than the program
memory data. Access to the Flash information area is read-only.
The trim bits are handled differently than the other Zilog Flash option bits. The trim bits
are the hybrid of the user option bits and the standard Zilog option bits. These trim bits
must be user accessible for reading at all times using external registers, regardless of the
state of bit 7 in the Flash page select register. Writes to the trim space change the value of
the option bit holding register, but does not affect the Flash bits, which remain as read-
only.
Table 67. Z8F083 Flash Memory Area Map
The Flash controller programs and erases Flash memory. The Flash controller provides the
proper Flash controls and timing for byte programming, page erase, and mass erase of
Flash memory.
The Flash controller contains several protection mechanisms to prevent accidental
programming or erasure. These mechanism operate on the page, sector and full-memory
levels.
The flowchart in
following subsections provide details about the various operations (Lock, Unlock, Byte
Programming, Page Protect, Page Unprotect, Page Select Page Erase, and Mass Erase)
displayed in
Program Memory Address
(Hex)
describes the Flash information area. This 128-byte information area is accessed
FE00–FE3F
FE54–FE5F
FE60–FE7F
FE40–FE53
Figure
Figure 19
19.
on page 107 display basic Flash controller operation. The
Function
Zilog option bits
Part number
20-character ASCII alphanumeric code
Left justified and filled with FH
Reserved
Reserved
Z8 Encore!
Product Specification
®
F0830 Series
Flash Memory
106