Z8F042AHJ020SG Zilog, Z8F042AHJ020SG Datasheet - Page 126

• Manufacturer Part Number: Z8F042AHJ020SG
• Description: IC ENCORE XP MCU FLASH 4K 28SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHJ020SG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 23
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4159; Z8F042AHJ020SG

Serial Peripheral Interface
Architecture
PS022517-0508
Figure 20. SPI Configured as a Master in a Single Master, Single Slave System
The Serial Peripheral Interface (SPI) is a synchronous interface allowing several SPI-type
devices to be interconnected. SPI-compatible devices include EEPROMs, Analog-to-
Digital Converters, and ISDN devices. Features of the SPI include:
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•
•
•
•
The SPI is not available in 20-pin package devices.
The SPI is be configured as either a Master (in single or multi-master systems) or a Slave
as displayed in
To Slave’s SS Pin
Full-duplex, synchronous, and character-oriented communication
Four-wire interface
Data transfers rates up to a maximum of one-half the system clock frequency
Error detection
Dedicated Baud Rate Generator
From Slave
To Slave
To Slave
Figure 20
MISO
MOSI
SCK
SS
through
Figure
Bit 0
8-bit Shift Register
SPI Master
22.
Bit 7
Baud Rate
Generator
Z8 Encore! XP
Product Specification
Serial Peripheral Interface
®
F0822 Series
113