1 features – Panasonic MN103001G/F01K User Manual

Page 338

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Serial Interface

13-36

13.4 Universal Asynchronous Receiver-Transceiver Serial Interface

13.4.1

Features

Serial interface 3 is a UART serial interface. Its features are described below.

• Parity

None, 0 fixed, 1 fixed, even, odd

• Character length 7 bits, 8 bits

• Transmission and reception bit sequence

LSB or MSB selectable

• Clock source

IOCLK

Timer 2 or timer 8 underflow

External clock

• Dedicated counter built in

Has an internal 7-bit counter that permits fast bit rates even with a clock source that

operates at a comparatively low frequency.

• Maximum bit rate

230.4 kbit/s (when IOCLK = 15 MHz)

• Error detection during reception

Parity errors, overrun errors, flaming error

• Buffers

Independent buffers for transmission and reception:

Reception and transmission buffers are both double buffers

• Interrupts

Transmission interrupts:
"Transmission end" or "transmission buffer empty" selectable

Reception interrupts:
"Reception end" or "reception end with error" selectable

• Transmission interrupt function

Transmissions can be interrupted and resumed with the proper external pin and register

settings.

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