Z8F011ASH020EG2156 ZiLOG, Z8F011ASH020EG2156 Datasheet - Page 32
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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Address Space
PS025113-1212
Register File
The eZ8 CPU can access the following three distinct address spaces:
•
•
•
The following sections describe these three address spaces. For more information about
the eZ8 CPU and its address space, refer to the
which is available for download at www.zilog.com.
The register file address space in the Z8 Encore! MCU is 4 KB (4096 bytes). The register
file consists of two sections: control registers and general-purpose registers. When instruc-
tions are executed, registers defined as source are read and registers defined as destina-
tions are written. The architecture of the eZ8 CPU allows all general purpose registers to
function as accumulators, address pointers, index registers, stack areas or scratch pad
memory.
The upper 256 bytes of the 4 KB register file address space are reserved for controlling the
eZ8 CPU, on-chip peripherals and the I/O ports. These registers are located at addresses
from
reserved (unavailable). Reading from a reserved register file address returns an undefined
value. Writing to reserved register file addresses is not recommended and can produce
unpredictable results.
The on-chip RAM always begins at address
Encore! F0830 Series devices contain up to 256 B of on-chip RAM. Reading from register
file addresses outside the available RAM addresses (and not within the Control Register
address space), returns an undefined value. Writing to these register file addresses has no
effect.
The register file addresses access for the general purpose registers and the eZ8 CPU,
peripheral and general purpose I/O port control registers
The program memory addresses access for all of the memory locations having execut-
able code and/or data
The data memory addresses access for all of the memory locations containing only the
data
F00H
to
FFFH
. Some of the addresses within the 256 B Control Register section are
000H
eZ8 CPU Core User Manual
in the register file address space. The Z8
Z8 Encore!
Product Specification
®
Address Space
F0830 Series
(UM0128),
14
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