Configuration Of Uart/Sio - Fujitsu F2MC-8FX Hardware Manual

20.2

Configuration of UART/SIO

The UART/SIO consists of the following blocks:
• UART/SIO serial mode control register 1 (SMC10)
• UART/SIO serial mode control register 2 (SMC20)
• UART/SIO serial status and data register (SSR0)
• UART/SIO serial input data register (RDR0)
• UART/SIO serial output data register (TDR0)
Block Diagram of UART/SIO
Dedicated baud rate generator
External clock input
UCK0
Serial clock output
Serial data input
UI0
Data sample clock input
Serial data output
UO0
Port control
Figure 20.2-1 Block Diagram of UART/SIO
Clock
1/4
selector
Pin
Start Recep-
bit tion bit
detection count
Pin
Shift
register
Pin for trans-
Parity
mission
operation
Reception
state
State from
decision
each block
circuit
State from
Transmis-
each block
sion state
decision
circuit
Parity
operation
Shift
register
for
reception
Transmis-
sion bit
count
Set to
each block
CHAPTER 20 UART/SIO
PER
OVE
FER
RDRF
RIE
TDRE
TEIE
TCP L
TCIE
UART/SIO
serial
status and
data register
UART/SIO
serial
input data
register
UART/SIO
serial
output data
register
UART/SIO
serial
mode
control
registers
1, 2
Reception
interrupt
Transmission
interrupt
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