MC68HC912D60 Motorola, MC68HC912D60 Datasheet - Page 347

• Manufacturer Part Number: MC68HC912D60
• Description: Microcontrollers
• Manufacturer: Motorola

MSCAN Controller
17.13.16 msCAN12 Port CAN Data Register (PORTCAN)
17.13.17 msCAN12 Port CAN Data Direction Register (DDRCAN)
Technical Data
347
PORTCAN R
DDRCAN
$013E
$013F
RESET
RESET
W
R
W
PCAN7
DDCAN7
Bit 7
Bit 7
0
0
PCAN7 – PCAN2 — Port CAN Data Bits (not available in 80QFP)
DDRCAN register determines the primary direction for the Port CAN pins
which are available as general purpose I/O. The value in the DDRCAN
also affects the source of data for reads of the corresponding Port CAN
register. When the DDCANx = 0 (input), the pin is read. When the
DDCANx =1 (output), the internal bit memory is read.
DDCAN7 – DDCAN2 — Data Direction Port CAN Bits
PCAN6
DDCAN6
Writing to PCANx stores the bit value in an internal bit memory. This
value is driven to the respective pin only if DDCANx = 1.
Reading PCANx returns
•
•
Reading bits 1 and 0 returns the value of the TxCAN and RxCAN pins,
respectively.
Freescale Semiconductor, Inc.
6
0
6
0
For More Information On This Product,
0 = Respective I/O pin is configured for input.
1 = Respective I/O pin is configured for output.
the value of the internal bit memory driven to the pin, if DDCANx = 1
the value of the respective pin, if DDCANx = 0
PCAN5
DDCAN5
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5
0
5
0
MSCAN Controller
PCAN4
DDCAN4
4
0
4
0
DDCAN3
PCAN3
3
0
3
0
DDCAN2
PCAN2
2
0
2
0
MC68HC912D60A — Rev 3.0
TxCAN
1
0
1
0
0
MOTOROLA
RxCAN
Bit 0
Bit 0
0
0
0