12. Serial Channel with 4bytes FIFO (SIO/UART)
12.1 Overview
Serial channel (SIO/UART) has the modes shown below.
・
Synchronous communication mode (I/O interface mode)
・
Asynchronous communication mode (UART mode)
Their features are given in the following.
・
Transfer Clock
- Dividing by the prescaler, from the peripheral clock (φT0) frequency into 1/1, 1/2, 1/4, 1/8, 1/16,
1/32, 1/64, 1/128.
- Make it possible to divide from the prescaler output clock frequency into 1 to 16.
- Make it possible to divide from the prescaler output clock frequency into N+m/16 (N=2 to 15, m=1
to 15). (only UART mode)
- The usable system clock (fsys) (only UART mode).
・
Buffer
- The usable double buffer function.
- Make it possible to clear the transmit buffer.
・
FIFO
The usable 4 byte FIFO including transmit and receive.
・
I/O Interface Mode
- Transfer Mode: the half duplex (transmit/receive), the full duplex
- Clock: Output (fixed rising edge) /Input (selectable either rising or falling edge)
- Make it possible to specify the interval time of continuous transmission.
- The state of TXDx pin after output of the last bit can be selected as follow:
Keep a "High" level, "Low" level or the state of the last bit
- The state of TXDx pin when an under run error is occurred in clock input mode can be selected as fol-
low:
Keep a "High" level or "Low" level
- The last bit hold time of TXDx pin can be specified in clock input mode.
・
UART Mode
- Data length: 7 bits, 8bits, 9bits
- Add parity bit (to be against 9bits data length)
- Serial links to use wake-up function
- Handshaking function with CTSx pin
- Noise cancel for RXDx pin
In the following explanation, "x" represents channel number.
TMPM3V6/M3V4
Page 211
2019-02-06
Содержание TMPM3V4
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Страница 354: ...TMPM3V6 M3V4 14 Synchronous Serial Port SSP 14 6 Frame Format Page 332 2019 02 06 ...
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Страница 510: ...TMPM3V6 M3V4 22 Flash Memory Operation 22 4 Programming in the User Boot Mode Page 488 2019 02 06 ...
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