Rainbow-electronics T89C51IC2 Manual do Utilizador

Rev. C – 3-Dec-011Features• 80C52 Compatible– 8051 pin and instruction compatible– Four 8-bit I/O ports + 2 I/O I2C Interface pins– Three 16-bit timer

© Atmel Nantes SA, 2001.Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standar

2T89C51IC2Rev. C – 3-Dec-01In addition, the T89C51IC2 has a 32kHz Subsidiary clock Oscillator, a ProgrammableCounter Array, an XRAM of 1024 byte, a Ha

3T89C51IC2Rev. C – 3-Dec-01SFR MappingThe Special Function Registers (SFRs) of the T89C51IC2 fall into the followingcategories:• C51 core registers: A

4T89C51IC2Rev. C – 3-Dec-01Table 2. SFR mappingTable below shows all SFRs with their address and their reset value.BitaddressableNon Bit addressable0/

5T89C51IC2Rev. C – 3-Dec-01Pin Configurations18 19 23222120 262524 27 2854321644 43 42 41 40P1.4/CEX1P1.0/T2/XTALB1P1.1/T2EX/SSP1.3/CEX0P1.2/ECIXTALB2

6T89C51IC2Rev. C – 3-Dec-01Table 1. Pin Description for 40/44 pin packagesMnemonicPin NumberTypeName and FunctionPLCC44 VQFP44 1.4VSS22 16 I Ground: 0

7T89C51IC2Rev. C – 3-Dec-01I/O CEX4: Capture/Compare External I/O for PCA module 4I/O MOSI: SPI Master Output Slave Input lineWhen SPI is in master mo

8T89C51IC2Rev. C – 3-Dec-01RST 10 4 I/OReset: A high on this pin for two machine cycles while the oscillator is running, resetsthe device. An internal

9T89C51IC2Rev. C – 3-Dec-01Ordering InformationTable 2. Possible order entriesNote: Purchase of Atmel I2C components conveys a license under the Phili