mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 430

• Manufacturer Part Number: mc9s12xd256
• Description: Hcs12x Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 10 Freescale’s Scalable Controller Area Network (S12MSCANV3)
The bit time is determined by the oscillator frequency, the baud rate prescaler, and the number of time
quanta (Tq) clock cycles per bit (as shown in
10.3.2.5
A flag can be cleared only by software (writing a 1 to the corresponding bit position) when the condition
which caused the setting is no longer valid. Every flag has an associated interrupt enable bit in the
CANRIER register.
430
Reset:
W
R
1
MSCAN Receiver Flag Register (CANRFLG)
WUPIF
This setting is not valid. Please refer to
TSEG13
Bit Time
1
0
7
This setting is not valid. Please refer to
0
0
0
0
1
1
:
TSEG22
0
0
1
1
:
Figure 10-8. MSCAN Receiver Flag Register (CANRFLG)
= Unimplemented
CSCIF
=
0
6
TSEG12
----------------------------------------------------- -
Prescaler value
0
0
0
0
1
1
:
f CANCLK
TSEG21
Table 10-7. Time Segment 2 Values
Table 10-8. Time Segment 1 Values
MC9S12XDP512 Data Sheet, Rev. 2.17
RSTAT1
0
0
1
1
:
0
5
TSEG11
0
0
1
1
1
1
:
Table 10-7
Table 10-35
TSEG20
RSTAT0
Table 10-35
0
4
0
1
0
1
:
1
TSEG10
+
and
TimeSegment1
0
1
0
1
0
1
:
for valid settings.
TSTAT1
Table
for valid settings.
3
0
Time Segment 2
2 Tq clock cycles
7 Tq clock cycles
8 Tq clock cycles
1 Tq clock cycle
10-8).
15 Tq clock cycles
16 Tq clock cycles
2 Tq clock cycles
3 Tq clock cycles
Time segment 1
4 Tq clock cycles
1 Tq clock cycle
TSTAT0
:
0
2
+
TimeSegment2
:
1
Freescale Semiconductor
1
OVRIF
1
1
0
1
Eqn. 10-1
RXF
0
0