MC68HC11KW1 Datasheet, PDF (9/238 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor HCMOS) microcontroller unit

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6.4.2 DDRD — Data direction register for port D......................................................6-5
6.5 Port E.....................................................................................................................6-6
6.5.1 PORTE — Port E data register ........................................................................6-6
6.6 Port F .....................................................................................................................6-7
6.6.1 PORTF — Port F data register.........................................................................6-7
6.6.2 DDRF — Data direction register for port F.......................................................6-7
6.7 Port G ....................................................................................................................6-8
6.7.1 PORTG — Port G data register .......................................................................6-8
6.7.2 DDRG — Data direction register for port G .....................................................6-9
6.7.3 PGAR — Port G assignment register ..............................................................6-9
6.8 Port H.....................................................................................................................6-10
6.8.1 PORTH — Port H data register........................................................................6-10
6.8.2 DDRH — Data direction register for port H......................................................6-10
6.9 Port J .....................................................................................................................6-11
6.9.1 PORTJ — Port J data register .........................................................................6-11
6.9.2 DDRJ — Data direction register for port J .......................................................6-11
6.10 Port K.....................................................................................................................6-12
6.10.1 PORTK — Port K data register ........................................................................6-12
6.10.2 DDRK — Data direction register for port K ......................................................6-12
6.11 Internal pull-up resistors ........................................................................................6-13
6.11.1 PPAR — Port pull-up assignment register .......................................................6-13
6.12 System configuration .............................................................................................6-14
6.12.1 OPT2 — System configuration options register 2............................................6-14
6.12.2 CONFIG — System configuration register .......................................................6-15
7
SERIAL COMMUNICATIONS INTERFACE
7.1
7.2
7.3
7.4
7.4.1
7.4.2
7.5
7.6
7.6.1
7.6.2
7.6.3
7.6.4
7.6.5
7.6.6
7.7
7.7.1
Data format ............................................................................................................7-2
Transmit operation .................................................................................................7-2
Receive operation..................................................................................................7-2
Wake-up feature ....................................................................................................7-4
Idle-line wake-up ..............................................................................................7-4
Address-mark wake-up ....................................................................................7-4
SCI error detection ................................................................................................7-5
SCI registers ..........................................................................................................7-5
SCBDH, SCBDL — SCI baud rate control registers ........................................7-6
SCCR1 — SCI control register 1 .....................................................................7-7
SCCR2 — SCI control register 2 .....................................................................7-9
SCSR1 — SCI status register 1.......................................................................7-10
SCSR2 — SCI status register 2.......................................................................7-11
SCDRH, SCDRL — SCI data high/low registers .............................................7-12
Status flags and interrupts.....................................................................................7-12
Receiver flags ..................................................................................................7-13
MC68HC11KW1
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