UPD78F9234MC-5A4-A Datasheet, PDF (187/419 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 11 SERIAL INTERFACE UART6
Figure 11-3. Port Configuration for LIN Reception Operation
Selector
P44/RXD6
RXD6 input
P30/INTP0/TI000
Port mode
(PM44)
Output latch
(P44)
Selector
Port mode
(PM30)
Output latch
(P30)
Selector
INTP0 input
Port input
selection control
(ISC0)
<ISC0>
0: Selects INTP0 (P30).
1: Selects RxD6 (P44).
Selector
TI000 input
Port input
selection control
(ISC1)
<ISC1>
0: Selects TI000 (P30).
1: Selects RxD6 (P44).
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
User’s Manual U17446EJ5V0UD
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