Port Configuration For Lin Reception Operation - NEC 78K0 User Manual

Figure 15-3. Port Configuration for LIN Reception Operation
P14/RxD6
P120/INTP0
P00/TI000
Remark ISC0, ISC1: Bits 0 and 1 of the input switch control register (ISC) (see Figure 15-11)
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 break field (SBF) length and divides it by the number of bits.
• Serial interface UART6
CHAPTER 15 SERIAL INTERFACE UART6
Selector
Port mode
(PM14)
Output latch
(P14)
Selector
Port mode
(PM120)
Output latch
*
(P120)
Selector
Port mode
(PM00)
Output latch
(P00)
User's Manual U15947EJ2V0UD
RXD6 input
Selector
Port input
switch control
(ISC0)
<ISC0>
0: Select INTP0 (P120)
1: Select RxD6 (P14)
Selector
Port input
switch control
(ISC1)
<ISC1>
0: Select TI000 (P00)
1: Select RxD6 (P14)
INTP0 input
TI000 input
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