DEMO9S08EL32 Freescale Semiconductor, DEMO9S08EL32 Datasheet - Page 198

• Manufacturer Part Number: DEMO9S08EL32
• Description: BOARD DEMO FOR 9S08 EL MCU
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of DEMO9S08EL32

• Contents: Evaluation Board
• Processor To Be Evaluated: MC9S08EL32
• Data Bus Width: 8 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 12 V
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08
• Core Sub-architecture: HCS08
• Silicon Core Number: MC9S08
• Silicon Family Name: S08EL
• Rohs Compliant: Yes
• For Use With/related Products: MC9S08EL32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12.3.5.2
When byte transfer mode is enabled (BTM = 1), many of the interrupt sources for the SLCSV no longer
apply, as they are specific to LIN operations.
applicable to BTM operations. The value of the SLCSV for each interrupt source remains the same, as well
as the priority of the interrupt source.
200
•
•
•
•
method was employed for this message frame. Refer to the LIN specification for more details on
the calculations.
Byte Framing Error
This error comes from the standard UART definition for byte encoding and occurs when the STOP
bit is sampled and reads back as a 090. STOP should always read as 1.
Identifier Received Successfully
This interrupt source indicates that a LIN identifier byte has been received with correct parity and
is waiting in the LIN identifier buffer (SLCID). Upon reading this interrupt source from SLCSV,
the user can then decode the identifier in software to determine the nature of the LIN message
frame. To clear this source, SLCID must be read.
Identifier-Parity-Error
A parity error in the identifier (i.e., corrupted identifier) will be flagged. Typical LIN slave
applications do not distinguish between an unknown but valid identifier, and a corrupted identifier.
However, it is mandatory for all slave nodes to evaluate in case of a known identifier all eight bits
of the ID-Field and distinguish between a known and a corrupted identifier. The received identifier
value is reported in SLCID so that the user software can choose to acknowledge or ignore the parity
error message. Once the ID parity error has been detected, the SLIC will begin looking for another
LIN header and will not receive message data, even if it appears on the bus.
Wakeup
The wakeup interrupt source indicates that the SLIC module has entered SLIC run mode from
SLIC stop mode.
Byte Transfer Mode Operation
A byte framing error can also be an indication that the number of data bytes
received in a LIN message frame does not match the value written to the
SLCDLC register. See
for more details.
SLCSV
0x0C
0x1C
0x00
0x14
0x18
MC9S08EL32 Series and MC9S08SL16 Series Data Sheet, Rev. 3
Table 12-9. Interrupt Sources Summary (BTM = 1)
I3
0
0
0
0
0
I2
0
0
1
1
1
Section 12.6.7, “Handling LIN Message
I1
0
1
0
1
1
I0
0
1
1
0
1
Table 12-9
NOTE
TX Message Buffer Empty
Receiver Buffer Overrun
I
No Interrupts Pending
RX Data Buffer Full
Interrupt Source
shows those interrupt sources which are
No Errors
Bit-Error
Headers,”
0 (Lowest)
Priority
3
5
6
7
Freescale Semiconductor