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Table Of Contents

Features
Description
Pin Configuration
Pin Description: RF Part
Pin Description: Microcontroller Part
UHF ASK/FSK Transmitter Block
Features
Description
General Description
Functional Description
- ASK Transmission
- FSK Transmission
- CLK Output
  - Clock Pulse Take Over
  - Output Matching and Power Setting
- Application Circuit
Absolute Maximum Ratings
Thermal Resistance
Electrical Characteristics
Microcontroller Block
Features
Description
Introduction
- Differences between T48C862-R8 and ATAR862 Microconrtollers
Microcontroller Architecture General Description
Components of Microcontroller Core
- Program Memory
- RAM
  - Expression Stack
  - Return Stack
- Registers
- ALU
- I/O Bus
- Instruction Set
- Interrupt Structure
  - Interrupt Processing
  - Interrupt Latency
- Software Interrupts
- Hardware Interrupts
Master Reset
- Power-on Reset and Brown-out Detection
  - Watchdog Reset
  - External Clock Supervisor
Voltage Monitor
- Voltage Monitor Control/Status Register
Clock Generation
- Clock Module
- Oscillator Circuits and External Clock Input Stage
- Clock Management
  - Clock Management Register (CM)
  - System Configuration Register (SC)
Power-down Modes
Peripheral Modules
- Addressing Peripherals
Bi-directional Ports
- Bi-directional Port 1
- Bi-directional Port 2
  - Port 2 Data Register (P2DAT)
  - Port 2 Control Register (P2CR)
- Bi-directional Port 5
  - Port 5 Data Register (P5DAT)
  - Port 5 Control Register (P5CR) Byte Write
- Bi-directional Port 4
  - Port 4 Data Register (P4DAT)
  - Port 4 Control Register (P4CR) Byte Write
- Bi-directional Port 6
  - Port 6 Data Register (P6DAT)
  - Port 6 Control Register (P6CR)
- Universal Timer/Counter/ Communication Module (UTCM)
- Timer 1
- Timer 2
- Timer 2 Modes
- Timer 2 Output Modes
- Timer 2 Output Signals
- Timer 2 Registers
Timer 3
- Features
- Timer/Counter Modes
- Timer 3 Modulator/Demodulator Modes
- Timer 3 Modulator for Carrier Frequency Burst Modulation
- Timer 3 Demodulator for Biphase, Manchester and Pulse-width-modulated Signals
- Timer 3 Registers
- Timer 3 Capture Register
  - Timer 3 CaPture Register (T3CP) Byte Read
- Synchronous Serial Interface (SSI)
- Serial Interface Registers
Combination Modes
- Combination Mode Timer 2 and SSI
- Combination Mode Timer 3 and SSI
- Combination Mode Timer 2 and Timer 3
  - Combination Mode 10: Frequency Measurement or Event Counter with Time Gate
  - Combination Mode 11: Burst Modulation 1
- Combination Mode Timer 2, Timer 3 and SSI
  - Combination Mode 12: Burst Modulation 2
  - Combination Mode 13: FSK Modulation
- Data EEPROM
- Serial Interface
  - Serial Protocol
  - Control Byte Format
- EEPROM
- Initialization the Serial Interface to the EEPROM
Absolute Maximum Ratings
Thermal Resistance
DC Operating Characteristics
AC Characteristics
Crystal Characteristics
Ordering Information
Package Information
Table of Contents

105

T48C862-R8

4590B–4BMCU–02/03

Serial Interface Control Register 2 (SIC2) ....................................................76

Serial Interface Status and Control Register (SISC) .....................................77

Serial Transmit Buffer (STB) – Byte Write ....................................................77

Serial Receive Buffer (SRB) – Byte Read .....................................................77

Combination Modes ........................................................................... 78

Combination Mode Timer 2 and SSI ...................................................................78

Combination Mode 1: Burst Modulation 7........................................................9

Combination Mode 2: Biphase Modulation 1 ................................................79

Combination Mode 3: Manchester Modulation 1 ..........................................80

Combination Mode 4: Manchester Modulation 2 ..........................................80

Combination Mode 5: Biphase Modulation 2 ................................................81

Combination Mode Timer 3 and SSI ...................................................................82

Combination Mode 6: FSK Modulation .........................................................82

Combination Mode 7: Pulse-width Modulation (PWM) .................................83

Combination Mode 8: Manchester Demodulation/Pulse-width

Demodulation ...............................................................83

Combination Mode 9: Biphase Demodulation ...............................................84

Combination Mode Timer 2 and Timer 3 ............................................................85

Combination Mode 10: Frequency Measurement or Event Counter with

Time Gate ....................................................................86

Combination Mode 11: Burst Modulation 1 ...................................................86

Combination Mode Timer 2, Timer 3 and SSI ....................................................88

Combination Mode 12: Burst Modulation 2 ...................................................89

Combination Mode 13: FSK Modulation .......................................................89

Data EEPROM ....................................................................................................90

Serial Interface ....................................................................................................91

Serial Protocol ...............................................................................................91

Control Byte Format ......................................................................................92

EEPROM ............................................................................................................92

EEPROM – Operating Modes .......................................................................92

Write Operations ...........................................................................................92

Acknowledge Polling .....................................................................................92

Write One Data Byte .....................................................................................92

Write Two Data Bytes ...................................................................................92

Write Control Byte Only ................................................................................92

Write Control Bytes .......................................................................................93

Read Operations ...........................................................................................93

Read One Data Byte .....................................................................................93

Read Two Data Bytes ...................................................................................93

Read n Data Bytes ........................................................................................93

Read Control Bytes .......................................................................................93

Initialization the Serial Interface to the EEPROM ...............................................94

Absolute Maximum Ratings ............................................................... 95