MC68HC05J3 Datasheet, PDF (8/92 Pages) Motorola, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit

Paragraph
Number
TITLE
Page
Number
4
INPUT/OUTPUT PORTS
4.1
4.2
4.3
4.4
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.5
Input/output programming .....................................................................................4-1
Port A.....................................................................................................................4-2
Port B.....................................................................................................................4-2
Port registers .........................................................................................................4-4
Port A data register (PORTA)...........................................................................4-4
Port B data register (PORTB) ..........................................................................4-4
Port B configuration register (CONFB) ............................................................4-4
Data direction register A (DDRA).....................................................................4-5
Data direction register B (DDRB).....................................................................4-5
Other port considerations ......................................................................................4-6
5
CORE TIMER
5.1
5.2
5.3
5.3.1
5.3.2
5.4
5.5
Real time interrupts (RTI) ......................................................................................5-2
Computer operating properly (COP) watchdog timer ............................................5-2
Core timer registers ...............................................................................................5-3
Core timer control and status register (CTCSR)..............................................5-3
Core timer counter register (CTCR).................................................................5-4
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
6.2.3
6.2.4
6.2.5
6.2.6
6.3
6.4
6.5
Counter..................................................................................................................6-3
Counter high register
Counter low register
Alternate counter high register
Alternate counter low register ..........................................................................6-3
Timer functions ......................................................................................................6-4
Timer control register – TCR............................................................................6-4
Timer status register – TSR .............................................................................6-5
Input capture function ......................................................................................6-6
Input capture high register
Input capture low register ................................................................................6-6
Output compare function .................................................................................6-7
Output compare high register
Output compare low register............................................................................6-7
Timer during WAIT mode.......................................................................................6-8
Timer during STOP mode......................................................................................6-8
Timer state diagrams.............................................................................................6-9
MOTOROLA
ii
TPG
MC68HC05J3