MC68HC05F4 데이터 시트보기 (PDF) - Motorola => Freescale

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MC68HC05F4

High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit

Motorola => Freescale 

3

MEMORY AND REGISTERS

3.1

3.2

3.3

3.4

3.5

3.5.1

3.5.2

3.5.3

Registers ...........................................................................................................3–1

RAM ..................................................................................................................3–1

ROM ..................................................................................................................3–1

Bootloader ROM................................................................................................3–4

EEPROM ...........................................................................................................3–4

EEPROM programming register ..................................................................3–4

Programming and erasing procedures.........................................................3–6

Sample EEPROM programming sequence .................................................3–6

4

PARALLEL INPUT/OUTPUT PORTS

4.1 Input/output programming .................................................................................4–1

4.2 Port A.................................................................................................................4–2

4.2.1 Keyboard interrupt .......................................................................................4–2

4.2.1.1

Key control register ................................................................................4–3

4.3 Port B.................................................................................................................4–4

4.4 Port C ................................................................................................................4–5

4.5 Port D ................................................................................................................4–5

4.6 Port registers .....................................................................................................4–6

4.6.1 Port data registers (Ports A, B, C and D).....................................................4–6

4.6.2 Data direction registers (DDRA, DDRB, DDRC and DDRD) .......................4–6

5

CORE TIMER

5.1

5.2

5.2.1

5.2.2

5.3

5.4

5.5

Real time interrupts (RTI) ..................................................................................5–2

Core timer registers ...........................................................................................5–3

Core timer control and status register (CTCSR)..........................................5–3

Core timer counter register (CTCR).............................................................5–4

Computer operating properly (COP) watchdog timer ........................................5–5

Core timer during WAIT .....................................................................................5–5

Core timer during STOP ....................................................................................5–5

6

16-BIT PROGRAMMABLE TIMER

6.1

6.1.1

6.2

6.2.1

6.2.2

6.3

Counter..............................................................................................................6–1

Counter register and alternate counter register ...........................................6–3

Timer control and status ....................................................................................6–4

Timer control registers 1 and 2 (TCR1 and TCR2) ......................................6–4

Timer status register (TSR) .........................................................................6–7

Input capture .....................................................................................................6–9

MOTOROLA

-ii

TABLE OF CONTENTS

TPG

MC68HC05F4

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