Z8F011ASH020EG2156 ZiLOG, Z8F011ASH020EG2156 Datasheet - Page 136
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Z8F011ASH020EG2156
Manufacturer Part Number
Z8F011ASH020EG2156
Description
8-bit Microcontrollers - MCU 1K FLASH 256B RAM 16B NVDS
Manufacturer
ZiLOG
Datasheet
1.Z8F011AHJ020EG2156.pdf
(257 pages)
Specifications of Z8F011ASH020EG2156
Rohs
yes
Core
eZ8
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
1 KB
Data Ram Size
256 B
On-chip Adc
No
Package / Case
SOIC-20
Mounting Style
SMD/SMT
Interface Type
UART
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
17
Number Of Timers
2
Program Memory Type
Flash
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
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PS025113-1212
NVDS Operational Requirements
Flash Control Register Definitions
Caution:
•
•
•
•
•
•
The device uses a 12 KB Flash memory space, despite the maximum specified Flash size
of 8 KB (with the exception of 12 KB mode with non-NVDS). User code accesses the
lower 8 KB of Flash, leaving the upper 4 KB for proprietary (for Zilog-only) memory. The
NVDS is implemented by using this proprietary memory space for special-purpose rou-
tines and for the data required by these routines, which are factory-programmed and can-
not be altered by the user. The NVDS operation is described in detail in the
Data Storage
The NVDS routines are triggered by a user code: CALL into proprietary memory. Code
executing from this proprietary memory must be able to read and write other locations
within proprietary memory. User code must not be able to read or write proprietary mem-
ory.
This section defines the features of the following Flash Control registers.
Flash Control
Flash Status
Flash Page Select
Flash Sector Protect
Flash Frequency High and Low Byte
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 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
Register: see page 120
chapter on page 134.
Register: see page 119
Register: see page 121
Register: see page 122
Registers: see page 123
NVDS Operational Requirements
Z8 Encore!
Product Specification
®
F0830 Series
Nonvolatile
118
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