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Serial Interface
13-24
13.3 Clock Synchronous Serial Interface
13.3.1 Features
Serial interfaces 1 and 2 are clock synchronous serial interfaces. Their 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 1/2, 1/8, or 1/32 of IOCLK (for either serial interface 1 or 2)
1/8 of timer 2 or timer 8 underflow, 1/2 of timer 8 underflow
(for either serial interface 1)
1/8 of timer 3 or timer 9 underflow, 1/2 of timer 9 underflow
(for either serial interface 2)
External clock (for either serial interface 1 or 2)
• Maximum bit rate
7.5 Mbit/s (when IOCLK is 15 MHz)
• Error detection during reception
Parity errors, overrun errors
• 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