ST72361AR4-Auto datasheet(203/279 Pages) STMICROELECTRONICS

203 / 279 page

ST72361xx-Auto

LINSCI serial communication interface (LIN master only)

Doc ID 12468 Rev 3

203/279

16.5

Low power modes

16.6

Interrupts

The SCI interrupt events are connected to the same interrupt vector.

These events generate an interrupt if the corresponding enable control bit is set and the

interrupt mask in the CC register is reset (RIM instruction).

16.7

SCI synchronous transmission

The SCI transmitter allows the user to control a one way synchronous serial transmission.

The SCLK pin is the output of the SCI transmitter clock. No clock pulses are sent to the

SCLK pin during start bit and stop bit. Depending on the state of the LBCL bit in the SCICR3

mark). The CPOL bit in the SCICR3 register allows the user to select the clock polarity, and

the CPHA bit in the SCICR3 register allows the user to select the phase of the external clock

(see Figure 91, Figure 92 and Figure 93).

During idle, preamble and send break, the external SCLK clock is not activated.

These options allow the user to serially control peripherals which consist of shift registers,

without losing any functions of the SCI transmitter which can still talk to other SCI receivers.

These options do not affect the SCI receiver which is independent from the transmitter.

Table 73.

Effect of low power modes on SCI

Mode

Description

WAIT

No effect on SCI.

SCI interrupts cause the device to exit from Wait mode.

HALT

SCI registers are frozen.

In halt mode, the SCI stops transmitting/receiving until Halt mode is exited.

Table 74.

SCI interrupt control and wake-up capability

Interrupt event

Event

flag

Enable

control

bit

Exit

from

wait

Exit

from

halt

Transmit data register empty

TDRE

TIE

Yes

Transmission complete

TCIE

Received data ready to be read

RDRF

RIE

Overrun error detected

Idle line detected

IDLE

ILIE

Parity error

PIE

ST72361AR4-Auto 데이터시트(PDF) 203 Page - STMicroelectronics

ST72361AR4-Auto 데이터시트(HTML) 203 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

데이터시트 다운로드

링크 URL