Z8F0813HJ005EG Zilog, Z8F0813HJ005EG Datasheet - Page 30

• Manufacturer Part Number: Z8F0813HJ005EG
• Description: IC Z8 ENCORE MCU FLASH 8K 28SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F0813HJ005EG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Other names: 269-4182; Z8F0813HJ005EG

Address Space
Overview
Register File
PS025203-0405
The eZ8 CPU can access three distinct address spaces:
•
•
•
These three address spaces are covered briefly in the following subsections. For more
detailed information regarding the eZ8 CPU and its address space, refer to the eZ8 CPU
User Manual available for download at www.zilog.com.
The Register File address space in the Z8 Encore!
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 4KB 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
tion 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!
ter 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 pro-
duces no effect.
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.
®
Z8F0823 Series devices contain 1KB of on-chip RAM. Reading from Regis-
F00H
to
FFFH
P R E L I M I N A R Y
. Some of the addresses within the 256B control register sec-
000H
®
in the Register File address space. The
MCU is 4KB (4096 bytes). The Regis-
Z8 Encore!
Product Specification
®
Z8F0823 Series
Address Space
13