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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

103

T48C862-R8

4590B–4BMCU–02/03

Peripheral Modules ............................................................................. 30

Addressing Peripherals .......................................................................................30

Bi-directional Ports ............................................................................. 33

Bi-directional Port 1 ............................................................................................33

Bi-directional Port 2 ............................................................................................34

Port 2 Data Register (P2DAT) ......................................................................35

Port 2 Control Register (P2CR) ....................................................................35

Bi-directional Port 5 ............................................................................................35

Port 5 Data Register (P5DAT) ......................................................................36

Port 5 Control Register (P5CR) Byte Write ...................................................36

Bi-directional Port 4 ............................................................................................37

Port 4 Data Register (P4DAT) ......................................................................38

Port 4 Control Register (P4CR) Byte Write ...................................................38

Bi-directional Port 6 ............................................................................................38

Port 6 Data Register (P6DAT) ......................................................................39

Port 6 Control Register (P6CR) ....................................................................39

Universal Timer/Counter/ Communication Module (UTCM) ...............................39

Timer 1 ................................................................................................................40

Timer 1 Control Register 1 (T1C1) ................................................................42

Timer 1 Control Register 2 (T1C2) ................................................................43

Watchdog Control Register (WDC) ...............................................................43

Timer 2 ................................................................................................................44

Timer 2 Modes ....................................................................................................45

Mode 1: 12-bit Compare Counter .................................................................45

Mode 2: 8-bit Compare Counter with 4-bit Programmable Prescaler ...........45

Mode 3/4: 8-bit Compare Counter and 4-bit Programmable Prescaler .........46

Timer 2 Output Modes ........................................................................................46

Timer 2 Output Signals .......................................................................................47

Timer 2 Output Mode 1 .................................................................................47

Timer 2 Output Mode 2 .................................................................................48

Timer 2 Output Mode 3 .................................................................................48

Timer 2 Output Mode 4 .................................................................................49

Timer 2 Output Mode 5 .................................................................................49

Timer 2 Output Mode 7 .................................................................................49

Timer 2 Registers ...............................................................................................50

Timer 2 Control Register (T2C) .....................................................................50

Timer 2 Mode Register 1 (T2M1) ..................................................................51

Duty Cycle Generator ...................................................................................51

Timer 2 Mode Register 2 (T2M2) ..................................................................52

Timer 2 Compare and Compare Mode Registers .........................................53

Timer 2 Compare Mode Register (T2CM) ....................................................53

Timer 2 COmpare Register 1 (T2CO1) .........................................................53

Timer 2 COmpare Register 2 (T2CO2) Byte Write .......................................54

Timer 3 ................................................................................................. 54