MOTOROLA
iv
MC68HC05X16
Rev. 1
TABLE OF CONTENTS
Paragraph
Number
Page
Number
TITLE
6.4
6.4.1
6.4.2
6.4.3
6.5
6.5.1
6.6
6.7
6.8
Output compare..................................................................................................... 6-9
Output compare register 1 (OCR1) ................................................................. 6-9
Output compare register 2 (OCR2) ................................................................. 6-10
Software force compare................................................................................... 6-11
Pulse length modulation (PLM)............................................................................. 6-11
Pulse length modulation registers A and B (PLMA/PLMB).............................. 6-11
Timer during STOP mode ..................................................................................... 6-12
Timer during WAIT mode ...................................................................................... 6-12
Timer state diagrams............................................................................................. 6-12
7
SERIAL COMMUNICATIONS INTERFACE
7.1
7.2
7.3
7.4
7.5
7.6
7.6.1
7.6.2
7.7
7.8
7.9
7.10
7.11
7.11.1
7.11.2
7.11.3
7.11.4
7.11.5
7.12
7.13
7.14
SCI two-wire system features................................................................................ 7-1
SCI receiver features............................................................................................. 7-3
SCI transmitter features......................................................................................... 7-3
Functional description ........................................................................................... 7-3
Data format............................................................................................................ 7-5
Receiver wake-up operation.................................................................................. 7-5
Idle line wake-up.............................................................................................. 7-6
Address mark wake-up.................................................................................... 7-6
Receive data in (RDI)............................................................................................ 7-6
Start bit detection.................................................................................................. 7-6
Transmit data out (TDO)........................................................................................ 7-8
SCI synchronous transmission.............................................................................. 7-9
SCI registers.......................................................................................................... 7-10
Serial communications data register (SCDR).................................................. 7-10
Serial communications control register 1 (SCCR1)......................................... 7-10
Serial communications control register 2 (SCCR2)......................................... 7-14
Serial communications status register (SCSR) ............................................... 7-16
Baud rate register (BAUD)............................................................................... 7-18
Baud rate selection................................................................................................ 7-20
SCI during STOP mode......................................................................................... 7-21
SCI during WAIT mode.......................................................................................... 7-21
8
PULSE LENGTH D/A CONVERTERS
8.1
8.2
8.3
8.4
Miscellaneous register........................................................................................... 8-3
PLM clock selection............................................................................................... 8-4
PLM during STOP mode ....................................................................................... 8-4
PLM during WAIT mode ........................................................................................ 8-4