CHAPTER 11 SERIAL INTERFACE UART6
User’s Manual U17446EJ3V1UD
182
Figure 11-3. Port Configuration for LIN Reception Operation
RXD6 input
INTP0 input
TI000 input
P44/R
X
D6
P30/INTP0/TI000
Port input
selection control
(ISC0)
<ISC0>
0: Selects INTP0 (P30).
1: Selects RxD6 (P44).
Selector
Port mode
(PM44)
Output latch
(P44)
Port mode
(PM30)
Output latch
(P30)
Port input
selection control
(ISC1)
<ISC1>
0: Selects TI000 (P30).
1: Selects RxD6 (P44).
Selector
Selector
Selector
Remark
ISC0, ISC1: Bits 0 and 1 of the input switch control register (ISC) (see
Figure 11-11
)
The peripheral functions used in the LIN communication operation are shown below.
<Peripheral functions used>
•
External interrupt (INTP0); wakeup signal detection
Use: Detects the wakeup signal edges and detects start of communication.
•
16-bit timer/event counter 00 (TI000); baud rate error detection
Use: Detects the baud rate error (measures the TI000 input edge interval in the capture mode) by detecting the
synchronous field (SF) length and divides it by the number of bits.
•
Serial interface UART6