T48C862M-R3 datasheet(102/107 Pages) ATMEL

102 / 107 page

102

T48C862-R3

4554A–4BMCU–02/03

Components of Microcontroller Core ............................................... 14

Program Memory ................................................................................................ 14

RAM .................................................................................................................... 15

Expression Stack .......................................................................................... 15

Return Stack ................................................................................................. 15

Registers ............................................................................................................. 16

Program Counter (PC) ..................................................................................16

RAM Address Registers ................................................................................ 17

Expression Stack Pointer (SP) ...................................................................... 17

Return Stack Pointer (RP) ............................................................................17

RAM Address Registers (X and Y) ...............................................................17

Top of Stack (TOS) ....................................................................................... 17

Condition Code Register (CCR) .................................................................... 17

Carry/Borrow (C) ........................................................................................... 17

Branch (B) ..................................................................................................... 17

Interrupt Enable (I) ........................................................................................ 17

ALU ..................................................................................................................... 18

I/O Bus ................................................................................................................ 18

Instruction Set ..................................................................................................... 18

Interrupt Structure ...............................................................................................18

Interrupt Processing ...................................................................................... 19

Interrupt Latency ........................................................................................... 19

Software Interrupts ............................................................................................. 20

Hardware Interrupts ............................................................................................ 20

Master Reset ....................................................................................... 21

Power-on Reset and Brown-out Detection .........................................................21

Watchdog Reset ........................................................................................... 22

External Clock Supervisor ............................................................................. 22

Voltage Monitor ................................................................................... 22

Voltage Monitor Control/Status Register ....................................................... 23

Clock Generation ................................................................................ 24

Clock Module ......................................................................................................24

Oscillator Circuits and External Clock Input Stage ............................................. 25

RC-oscillator 1 Fully Integrated ..................................................................... 25

External Input Clock ...................................................................................... 26

RC-oscillator 2 with External Trimming Resistor ........................................... 26

4-MHz Oscillator ........................................................................................... 27

32-kHz Oscillator ........................................................................................... 27

Clock Management ............................................................................................. 28

Clock Management Register (CM) ................................................................ 28

System Configuration Register (SC) ............................................................. 29

Power-down Modes ............................................................................ 29

T48C862M-R3 数据表(PDF) 102 Page - ATMEL Corporation

T48C862M-R3 数据表(HTML) 102 Page - ATMEL Corporation

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