UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 378

• Manufacturer Part Number: UPD78F0838
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

376
The peripheral functions used in the LIN communication operation are shown below.
<Peripheral functions used>
Remark ISC2, ISC6: Bits 2 and 6 of the input switch control register (ISC) (see Figure 12-19. Format of Input
P13/TIOP30/SEG23/TxD60
P11/RxD61/INTPR61/SI10
External interrupt (INTPR61); wakeup signal detection
Use: Detects the wakeup signal edges and detects start of communication.
16-bit timer/event counter P3 (TMP3); baud rate error detection
Use: Detects the baud rate error (measures the TMP3 input edge interval in the capture mode) by detecting the
Serial interface UART61.
sync field (SF) length and divides it by the number of bits.
P17/INTP0/TIOP30
Switch Control Register (ISC).)
Figure 12-4. Port Configuration for LIN Reception Operation (UART61)
CHAPTER 12 SERIAL INTERFACES UART60 AND UART61
Output latch
Output latch
Output latch
(P11)
(P13)
(P17)
Preliminary User’s Manual U19748EJ1V0UD
Port mode
Port mode
Port mode
Selector
Selector
Selector
(PM11)
(PM13)
(PM17)
<ISC2>
0: Select TIOP30 input (P13 or P17)
1: Select RxD61 (P11)
<ISC6>
0: Select P13
1: Select P17
switch control
switch control
Port input
Port input
Selector
Selector
(ISC2)
(ISC6)
RxD61/INTPR61 input
TIOP30 input