MC908QL4MDTER Freescale Semiconductor, MC908QL4MDTER Datasheet - Page 156
MC908QL4MDTER
Manufacturer Part Number
MC908QL4MDTER
Description
IC MCU 8BIT 4K FLASH 16-TSSOP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908QL3VDTE.pdf
(226 pages)
Specifications of MC908QL4MDTER
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
LIN (Local Interconnect Network)
Peripherals
LVD, POR, PWM
Number Of I /o
13
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
16-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Slave LIN Interface Controller (SLIC) Module
The SLIC transmit go (TXGO) bit should be 0 for command frames, indicating to the SLIC that data is
coming from the master. The checksum mode control (CHKMOD) bit allows the user to select which
method of checksum calculation is desired for this message frame. The LIN 1.3 checksum does not
include the identifier byte in the calculation, while the SAE version does include this byte. Because the
identifier is already received by the SLIC by this time, the default is to include it in the calculation. If a LIN
1.3 checksum is desired, a 1 in CHKMOD will reset the checksum circuitry to begin calculating the
156
RECEIVE BUFFER OVERRUN
PROCESS ERROR CODE:
BYTE FRAMING ERROR
CHECKSUM-ERROR
RETURN TO IDLE
NO-BUS-ACTIVITY
EXIT ISR
Figure 14-16. Handling Command Messages (Data Receive)
Y
WRITE SLCDLC FOR THIS ID
0n00 0xxx
(TXGO = 0)
(CHKMOD = n)
COMMAND MESSAGE
EXTENDED FRAME
EMPTY RX BUFFER
ERROR CODE
READ SLCSV
CLEAR SLCF
INTERRUPT
PROCESS
EXIT ISR
VALID ID
N
Y
N
?
?
?
MC68HC908QL4 Data Sheet, Rev. 8
N
Y
1. EMPTY RX BUFFER
2. DECREMENT SW BYTE COUNT BY 8
N
INITIALIZE SW BYTE COUNT
WRITE SLCDLC FOR THIS ID
0nxx xxxx
(TXGO = 0)
(CHKMOD = n)
REQUEST MESSAGE
(SW BYTE COUNT £8)
PROCESS
ERROR CODE
LAST FRAME
READ SLCSV
CLEAR SLCF
INTERRUPT
EXIT ISR
N
Y
?
?
Y
Freescale Semiconductor
RECEIVE BUFFER OVERRUN
PROCESS ERROR CODE:
BYTE FRAMING ERROR
NO-BUS-ACTIVITY
RETURN TO IDLE
EXIT ISR
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