mc9s12xf512 Freescale Semiconductor, Inc, mc9s12xf512 Datasheet - Page 969

• Manufacturer Part Number: mc9s12xf512
• Description: S12x Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

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
21.3.2.5
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which caused the setting is no longer valid.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.
Freescale Semiconductor
Module Base + 0x0004
Reset:
W
R
1. This setting is not valid. Please refer to
MSCAN Receiver Flag Register (CANRFLG)
WUPIF
TSEG13
Bit Time
1. This setting is not valid. Please refer to
0
7
0
0
0
0
1
1
:
TSEG22
0
0
1
1
:
Figure 21-8. MSCAN Receiver Flag Register (CANRFLG)
= Unimplemented
CSCIF
=
6
0
TSEG12
(
----------------------------------------------------- -
Prescaler value
MC9S12XF - Family Reference Manual, Rev.1.19
0
0
0
0
1
1
:
f CANCLK
TSEG21
Table 21-10. Time Segment 1 Values
Table 21-9. Time Segment 2 Values
RSTAT1
0
0
1
1
:
0
5
TSEG11
0
0
1
1
1
1
:
Table 21-9
Chapter 21 Freescale’s Scalable Controller Area Network (S12MSCANV2)
Table 21-36
TSEG20
RSTAT0
)
•
Table 21-36
4
0
0
1
0
1
:
(
1
TSEG10
+
and
TimeSegment1
0
1
0
1
0
1
:
for valid settings.
TSTAT1
Table
for valid settings.
0
3
1 Tq clock cycle
Time Segment 2
2 Tq clock cycles
7 Tq clock cycles
8 Tq clock cycles
21-10).
1 Tq clock cycle
15 Tq clock cycles
16 Tq clock cycles
2 Tq clock cycles
3 Tq clock cycles
Time segment 1
4 Tq clock cycles
TSTAT0
:
2
0
+
TimeSegment2
:
(1)
Access: User read/write
(1)
OVRIF
1
1
0
1
)
Eqn. 21-1
RXF
0
0
969
(1)