mb91101 Fujitsu Microelectronics, Inc., mb91101 Datasheet - Page 40

• Manufacturer Part Number: mb91101
• Description: 32-bit Risc Microcontroller Cmos
• Manufacturer: Fujitsu Microelectronics, Inc.

MB91101/MB91101A
3. UART
The UART is a serial I/O port for supporting asynchronous (start-stop system) communication or CLK synchro-
nous communication, and it has the following features.
The MB91101 and MB91101A consist of 3 channels of UART.
• Full double double buffer
• Both a synchronous (start-stop system) communication and CLK synchronous communication are available.
• Supporting multi-processor mode
• Perfect programmable baud rate
Any baud rate can be set by internal timer (refer to section “4. U-TIMER”).
• Any baud rate can be set by external clock.
• Error checking function (parity, framing and overrun)
• Transfer signal: NRZ code
• Enable DMA transfer/start by interrupt.
40