mc9s12c32mpb16 Freescale Semiconductor, Inc, mc9s12c32mpb16 Datasheet - Page 299

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mc9s12c32mpb16

Manufacturer Part Number
mc9s12c32mpb16
Description
Hcs12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
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which caused the setting is no longer valid.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.
Read: Anytime
Write: Anytime when out of initialization mode, except RSTAT[1:0] and TSTAT[1:0] flags which are read-
only; write of 1 clears flag; write of 0 is ignored.
1. The RSTAT[1:0], TSTAT[1:0] bits are not affected by initialization mode.
Freescale Semiconductor
Module Base + 0x0004
Reset:
W
R
1. This setting is not valid. Please refer to
MSCAN Receiver Flag Register (CANRFLG)
WUPIF
The CANRFLG register is held in the reset state
mode is active (INITRQ = 1 and INITAK = 1). This register is writable again
as soon as the initialization mode is exited (INITRQ = 0 and INITAK = 0).
TSEG13
Bit Time
0
7
0
0
0
0
1
1
:
Figure 10-8. MSCAN Receiver Flag Register (CANRFLG)
= Unimplemented
CSCIF
=
6
0
TSEG12
(
----------------------------------------------------- -
Prescaler value
0
0
0
0
1
1
:
f CANCLK
Table 10-8. Time Segment 1 Values
MC9S12C-Family / MC9S12GC-Family
RSTAT1
0
5
TSEG11
0
0
1
1
1
1
:
Table 10-7
Chapter 10 Freescale’s Scalable Controller Area Network (S12MSCANV2)
Table 10-34
Rev 01.23
NOTE
RSTAT0
)
4
0
(
1
TSEG10
+
and
TimeSegment1
0
1
0
1
0
1
:
for valid settings.
TSTAT1
Table
1
0
3
when the initialization
10-8).
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)
OVRIF
1
1
0
1
)
Eqn. 10-1
RXF
0
0
299

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