Z8F042AHH020EG Zilog, Z8F042AHH020EG Datasheet - Page 127

• Manufacturer Part Number: Z8F042AHH020EG
• Description: IC ENCORE XP MCU FLASH 4K 20SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHH020EG

• 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: 17
• 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 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4156; Z8F042AHH020EG

Operation
PS022517-0508
To Slave #2’s SS Pin
To Slave #1’s SS Pin
Figure 21. SPI Configured as a Master in a Single Master, Multiple Slave System
The SPI is a full-duplex, synchronous, and character-oriented channel that supports a four-
wire interface (serial clock, transmit, receive and Slave select). The SPI block consists of a
transmit/receive shift register, a Baud Rate (clock) Generator and a control unit.
From Master
From Master
From Master
To Master
From Slave
To Slave
To Slave
VCC
SS
MISO
MOSI
SCK
Figure 22. SPI Configured as a Slave
MISO
MOSI
SCK
SS
GPIO
GPIO
Bit 7
8-bit Shift Register
Bit 0
SPI Slave
8-bit Shift Register
SPI Master
Bit 0
Bit 7
Baud Rate
Generator
Z8 Encore! XP
Product Specification
Serial Peripheral Interface
®
F0822 Series
114