9 lin data buffer selection register - linsel, 10 lin data register - lindat – Rainbow Electronics ATmega64C1 User Manual
Page 226
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7647A–AVR–02/08
ATmega32/64/M1/C1
17.6.9
LIN Data Buffer Selection Register - LINSEL
• Bits 7:4 - Reserved Bits
These bits are reserved for future use. For compatibility with future devices, they must be
written to zero when LINSEL is written.
• Bit 3 - LAINC: Auto Increment of Data Buffer Index
In LIN mode:
– 0 = Auto incrementation of FIFO data buffer index (default),
– 1 = No auto incrementation.
In UART mode this field is unused.
• Bits 2:0 - LINDX 2:0: FIFO LIN Data Buffer Index
In LIN mode: location (index) of the LIN response data byte into the FIFO data buffer. The
FIFO data buffer is accessed through LINDAT.
In UART mode this field is unused.
17.6.10
LIN Data Register - LINDAT
• Bits 7:0 - LDATA[7:0]: LIN Data In / Data out
In LIN mode: FIFO data buffer port.
In UART mode: data register (no data buffer - no FIFO).
– In Write access, data out.
– In Read access, data in.
Bit
7
6
5
4
3
2
1
0
-
-
-
-
LAINC
LINDX2
LINDX1
LINDX0
LINSEL
Read/Write
-
-
-
-
R/W
R/W
R/W
R/W
Initial Value
-
-
-
-
0
0
0
0
Bit
7
6
5
4
3
2
1
0
LDATA7
LDATA6
LDATA5
LDATA4
LDATA3
LDATA2
LDATA1
LDATA0
LINDAT
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0