Encore electronic Zilog Z8ENCORE000ZCO - Manual (Page 20)

Z8 Encore!
®
Flash Microcontroller Development Kit
User Manual
16
UM014605-0208 Z8 Encore!® Evaluation Board
advantage. The configuration register ( Table 4 ) is available at the address
0x9C
for Write operation and
0x9D
for Read operation on the PCA8550
device. For more details on programming this device, refer to PCA8550
Product Specification (
www.semiconductors.philips.com ).
SPI Interface
The SPI allows the Z8 Encore! to exchange data between other peripheral
devices such as EEPROMs, ADC, and ISDN devices. The SPI is a full-
duplex, synchronous, character-oriented channel that supports a four-wire
interface.
To work with SPI interface for temperature/sensor types of applications,
DS1722 Digital Thermometer was incorporated into the board. The serial
mode is SPI. For more details on programming the device, refer to
DS1722 Product Specification.
IrDA Transceiver
The Z8 Encore! contains two fully-functional, high-performance UARTs
with Infrared Encoder/Decoders (Endec). The Infrared Endec is inte-
grated with an on-chip UART to allow easy communication between the
Z8 Encore! and IrDA transceivers. Infrared communication provides
secure, reliable, low-cost, point-to-point communication between PCs,
PDAs, cell phones, printers and other infrared enabled devices.
Table 4. I
2
C Address for Configuration Register on the PCA8550 (U2)
Device/Bit No 7 6 5 4 3 2 1 0
Value 1 0 0 1 1 1 0 R/W