Z8F041APH020SG2156 ZiLOG, Z8F041APH020SG2156 Datasheet - Page 32

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Z8F041APH020SG2156

Manufacturer Part Number
Z8F041APH020SG2156
Description
8-bit Microcontrollers - MCU 4K FLASH 1K RAM 128B NVDS
Manufacturer
ZiLOG
Datasheet

Specifications of Z8F041APH020SG2156

Rohs
yes
Core
eZ8
Processor Series
Z8F041xx
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
4 KB
Data Ram Size
1 KB
On-chip Adc
Yes
Operating Supply Voltage
2.7 V to 3.6 V
Operating Temperature Range
- 40 C to + 105 C
Package / Case
PDIP-20
Mounting Style
Through Hole
A/d Bit Size
10 bit
A/d Channels Available
8
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
Address Space
PS022827-1212
Register File
Program Memory
The eZ8 CPU can access the following three distinct address spaces:
These three address spaces are covered briefly in the following subsections. For more
information about eZ8 CPU and its address space, refer to the
(UM0128), which is available for download on www.zilog.com.
The Register File address space in the Z8 Encore! MCU is 4 KB (4096 bytes). The Regis-
ter File is composed of two sections: control registers and general-purpose registers. When
instructions are executed, registers defined as sources are read and registers defined as
destinations are written. The architecture of the eZ8 CPU allows all general-purpose regis-
ters 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 control of the
eZ8 CPU, the on-chip peripherals and the I/O ports. These registers are located at
addresses from
section are 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
Z8 Encore! XP
from Register File addresses outside the available RAM addresses (and not within the con-
trol register address space) returns an undefined value. Writing to these Register File
addresses produces no effect.
The eZ8 CPU supports 64 KB of Program Memory address space. The Z8 Encore! XP
F082A Series devices contain 1 KB to 8 KB of on-chip Flash memory in the Program
Memory address space, depending on the device. Reading from Program Memory
The Register File contains addresses for the general-purpose registers and the eZ8
CPU, peripheral and general-purpose I/O port control registers.
The Program Memory contains addresses for all memory locations having executable
code and/or data.
The Data Memory contains addresses for all memory locations that contain data only.
F00H
F082A Series devices contain 256 B to 1 KB of on-chip RAM. Reading
to
FFFH
P R E L I M I N A R Y
. Some of the addresses within the 256 B control register
000H
in the Register File address space. The
Z8 Encore! XP
eZ8 CPU Core User Manual
Product Specification
®
F082A Series
Address Space
15

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