MB86R02 'Jade-D' Hardware Manual V1.64
28 UART Interface
This chapter describes function and operation of the UART interface.
28.1 Outline
UART is asynchronous transmission/reception serial interface which is controllable by software.
This LSI incorporates 6 UART modules.
28.2 Feature
UART has following features:
• Programmable baud rate (baud rate is selectable arbitrarily based on APB clock)
• 16 byte transmission FIFO and 16 byte reception FIFO
28.3 Block diagram
Figure 28-1 shows block diagram of UART.
MB86R02
IRC_A
XTXRDY
DMAC
XRXRDY
APB bus
CPU I/F
INTR
Figure 28-1 Block diagram of UART
Modem I/F
Register
Receiver
FIFO
shift
Transmitter
FIFO
shift
Baud rate
generator
UART ch0
UART ch1
UART ch5
UART_SIN0
UART_SOUT0
UART_XCTS0
UART_XRTS0
UART_SIN1
UART_SOUT1
UART_SIN5
UART_SOUT5
28-1