mc68hc05x4dw Freescale Semiconductor, Inc, mc68hc05x4dw Datasheet - Page 92

• Manufacturer Part Number: mc68hc05x4dw
• Description: Xc68hc705x4 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

MCAN output
control register
(COCNTRL)
Motorola CAN
MC68HC05X4
NOTE:
NOTE:
Address:
This register allows the setup of different output driver configurations
under software control. The user may select active pull-up, pull-down,
float or push-pull output.
This register can be accessed only when the RR bit in CCNTRL is set.
OCM1 and OCM0 — Output control mode bits
The transmit clock (t
be high during the SYNC_SEG.
For all the following modes of operation, a dominant bit is internally
coded as a zero, a recessive as a one. The other output control bits are
used to determine the actual voltage levels transmitted to the MCAN bus
for dominant and recessive bits.
Reset:
The values of these two bits determine the output mode, as shown in
Table
Freescale Semiconductor, Inc.
For More Information On This Product,
OCTP1
$0028
Bit 7
4.
Figure 14. MCAN Output Control (COCNTRL)
OCM1
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0
0
1
1
OCTN1
6
Motorola CAN
Table 4. Output control modes
xclk
OCM0
) is used to indicate the end of the bit time and will
0
1
0
1
OCPOL1
5
Biphase mode
Not used
Normal mode 1
Normal mode 2
Bit stream transmitted on both TX0 and
TX1
TX0 – bit sequence
TX1 – bus clock (t
OCTP0
4
Undefined
OCTN0
Function
3
xclk
)
OCPOL0
2
OCM1
1
OCM0
Bit 0
24-mcan