MC68HC12 MOTOROLA [Motorola, Inc], MC68HC12 Datasheet - Page 366

• Manufacturer Part Number: MC68HC12
• Description: The MC68HC912DT128A microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit
• Manufacturer: MOTOROLA [Motorola, Inc]

MSCAN Controller
18.13.15 msCAN12 Port CAN Control Register (PCTLCAN)
18.13.16 msCAN12 Port CAN Data Register (PORTCAN)
18.13.17 msCAN12 Port CAN Data Direction Register (DDRCAN)
Technical Data
366
PCTLCAN
PORTCAN
DDRCAN
$013F
$013D
$013E
RESET
RESET
RESET
W
W
R
R
W
R
DDCAN7
PCAN7
Bit 7
Bit 7
Bit 7
0
0
0
-
The following bits control pins 7 through 2 of Port CAN when they are
implemented externally.
PUPCAN — Pull-Up Enable Port CAN
RDPCAN — Reduced Drive Port CAN
DDCAN7 – DDCAN2 — This bits served as memory locations since
there are no corresponding external port pins.
DDCAN6
PCAN6
Port bits 7 to 2 will read zero when configured as inputs because they
are not implemented externally.
When configured as output, port bits 7 to 2 will read the last value
written.
Reading bits 1 and 0 returns the value of the TxCan and RxCan pins,
respectively.
6
0
0
6
0
6
0 = Pull mode disabled for Port CAN.
1 = Pull mode enabled for Port CAN.
0 = Reduced drive disabled for Port CAN.
1 = Reduced drive enabled for Port CAN.
DDCAN5
PCAN5
5
0
0
5
0
5
-
MSCAN Controller
DDCAN4
PCAN4
4
0
0
4
0
4
DDCAN3
PCAN3
3
0
0
3
0
3
-
DDCAN2
PCAN2
MC68HC912DT128A — Rev 4.0
2
0
0
2
0
2
PUPCAN
TxCAN
1
0
1
0
0
1
-
MOTOROLA
RDPCAN
RxCAN
Bit 0
Bit 0
Bit 0
0
0
0
-