SA1110 Datasheet, PDF (294/406 Pages) Intel Corporation – Intel StrongARM SA-1110 Microprocessor

Peripheral Control Module
Reset
0h 8005 0000
7
6
Reserved
TCE
0
?
5
RCE
?
UTCR0
4
SCE
?
3
DSS
?
Read/Write
2
1
0
SBS
OES
PE
?
?
?
Bits
Name
Description
Parity enable.
0
PE
0 – Parity checking on received data and parity generation on transmitted data is disabled.
1 – Parity checking on received data and parity generation on transmitted data is enabled.
Odd/even parity select.
0 – Odd parity checking/generation selected. Parity error bit set if even number of ones
1
OES
counted in data field (including the parity bit).
1 – Even parity checking/generation selected. Parity error bit set if odd number of ones
counted in data field (including the parity bit).
Stop bit select.
2
SBS
0 – One stop bit transmitted per frame.
1 – Two stop bits transmitted per frame.
Note: Receiver not affected by SBS; always checks for one stop bit.
Data size select.
0 – 7-bit data.
3
DSS
1 – 8-bit data.
Note: For 7-bit mode, the data is right justified within the FIFO entries, the MSBs in the
receive FIFO are zero filled, and the MSBs in the transmit FIFO are ignored.
Sample clock enable.
0 – on-chip baud rate generator and digital PLL used to transmit and receive asynchronous
data.
4
SCE
1 – A clock is input via GPIO pin 20 and is used synchronously to sample receive data and
drive transmit data.
Note: Serial port 1’s UART uses GPIO pin 18 for the sample clock input; serial port 2 does
not support the sample clock function. The user must also program the appropriate bits in
the GPDR and GAFR registers within the system control module.
Receive clock edge select.
5
RCE
0 – Rising edge of clock input on GPIO pin 20 used to latch data from the receive pin if SCE=1.
1 – Falling edge of clock input on GPIO pin 20 used to latch data from the receive pin if SCE=1.
Transmit clock edge select.
6
TCE
0 – Rising edge of clock input on GPIO pin 20 used to drive data onto the transmit pin if SCE=1.
1 – Falling edge of clock input on GPIO pin 20 used to drive data onto the transmit pin if SCE=1.
7
—
Reserved.
11-114
SA-1110 Developer’s Manual