UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 182

• Manufacturer Part Number: UPD78F9222MC(T)-5A4-A
• Description: 8BIT MCU, 4K FLASH, 256B RAM, 78F9222
• Manufacturer: NEC

Specifications of UPD78F9222MC(T)-5A4-A

• Controller Family/series: UPD78
• No. Of I/o's: 17
• Ram Memory Size: 256Byte
• Cpu Speed: 10MHz
• No. Of Timers: 4
• No. Of: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 4KB
• Oscillator Type: External, Internal

182
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
• 16-bit timer/event counter 00 (TI000); baud rate error detection
• Serial interface UART6
Use: Detects the wakeup signal edges and detects start of communication.
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.
P30/INTP0/TI000
P44/R
X
D6
Figure 11-3. Port Configuration for LIN Reception Operation
Output latch
Output latch
(P44)
(P30)
CHAPTER 11 SERIAL INTERFACE UART6
Port mode
Port mode
Selector
Selector
(PM44)
(PM30)
User’s Manual U16898EJ5V0UD
selection control
selection control
<ISC0>
0: Selects INTP0 (P30).
1: Selects RxD6 (P44).
<ISC1>
0: Selects TI000 (P30).
1: Selects RxD6 (P44).
Port input
Port input
Selector
Selector
(ISC0)
(ISC1)
RXD6 input
INTP0 input
TI000 input