UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 310

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

(INTP0 and INTP1). The length of the sync field transmitted from the LIN master can be measured using the external
event capture operation of 16-bit timer/event counter 00, 01, and the baud rate error can be calculated.
INTP1) and 16-bit timer/event counter 00, 01 by port input switch control (ISC), without connecting RxD60, RxD61,
INTP0, INTP1, TI010 and TI001 externally.
310
Figure 14-3 and 14-4 show the port configuration for LIN reception operation.
The wakeup signal transmitted from the LIN master is received by detecting the edge of the external interrupt
The input source of the reception port input (RxD60 and RxD61) can be input to the external interrupt (INTP0 and
The peripheral functions used in the LIN communication operation are shown below.
<Peripheral functions used>
• External interrupt (INTP0); wakeup signal detection
• 16-bit timer/event counter 00 (TI010); baud rate error detection
• Serial interface UART60.
Remark ISC1, ISC3: Bits 1 and 3 of the input switch control register (ISC) (see Figure 14-19)
Use: Detects the wakeup signal edges and detects start of communication.
Use: Detects the baud rate error (measures the TI010 input edge interval in the capture mode) by detecting the
sync field (SF) length and divides it by the number of bits.
P120/INTP0
P14/RxD60
P01/TI010
Figure 14-3. Port Configuration for LIN Reception Operation (UART60)
CHAPTER 14 SERIAL INTERFACES UART60 AND UART61
Output latch
Output latch
Output latch
(P120)
(P14)
(P01)
Port mode
Port mode
Port mode
(PM120)
Selector
Selector
Selector
(PM14)
(PM01)
User’s Manual U17554EJ4V0UD
<ISC1>
0: Select TI010 (P01)
1: Select RxD60 (P14)
<ISC3>
0: Select INTP0 (P120)
1: Select RxD60 (P14)
switch control
switch control
Port input
Port input
Selector
Selector
(ISC1)
(ISC3)
RxD60 input
TI010 input
INTP0 input