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FH8065301616603
PCU – Universal Asynchronous Receiver/Transmitter (UART)
1096
Datasheet
22
PCU – Universal Asynchronous
Receiver/Transmitter (UART)
This section describes the Universal Asynchronous Receiver/Transmitter (UART) serial
port integrated into the PCU. The UART may be controlled through programmed IO.
port integrated into the PCU. The UART may be controlled through programmed IO.
Note:
Only a minimal ball-count, comprising receive & transmit signals, UART port is
implemented. Further, a maximum baud rate of only 115,200 bps is supported. For this
reason, it is recommended that the UART port be used for debug purposes only.
implemented. Further, a maximum baud rate of only 115,200 bps is supported. For this
reason, it is recommended that the UART port be used for debug purposes only.
22.1
Signal Descriptions
See
for additional details.
The signal description table has the following headings:
•
Signal Name: The name of the signal/pin
•
Direction: The buffer direction can be either input, output, or I/O (bidirectional)
•
Type: The buffer type found in
•
Description: A brief explanation of the signal’s function
I
O
I
O
I
O
I
O
I
O
I
O
I
O
O
Platform Control Unit
UART
SMB
iLB
SPI
PMC
Table 161. UART Signals
Signal Name
Direction/
Type
Description
PCU_UART_RXD
I
TBD
COM1 Receive: Serial data input from device pin to the receive port.
This signal is multiplexed and may be used by other functions.
This signal is multiplexed and may be used by other functions.
PCU_UART_TXD
O
TBD
COM1 Transmit: Serial data output from transmit port to the device
pin.
This signal is multiplexed and may be used by other functions.
This signal is multiplexed and may be used by other functions.