OX16C950-TQBG OXFORD SEMICONDUCTOR, OX16C950-TQBG Datasheet - Page 27

• Manufacturer Part Number: OX16C950-TQBG
• Description: IC, UART, 1CH, SMD, TQFP48, 950
• Manufacturer: OXFORD SEMICONDUCTOR

Specifications of OX16C950-TQBG

• No. Of Channels: 1
• Data Rate: 15Mbps
• Uart Features: Tx/Rx FIFO INT TRIG
• Supply Voltage Range: 3V To 5.25V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: TQFP
• No. Of Pins: 48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

In this mode, the receiver and transmitter interrupts are
fully operational. The modem control interrupts are also
operational, but the interrupt sources are now the lower
four bits of the Modem Control Register instead of the four
modem status inputs. The interrupts are still controlled by
the IER.
MCR[5]: Enable XON-Any in Enhanced mode or enable
out-of-band flow control in non-Enhanced mode
650/950 modes (Enhanced mode):
logic 0 ⇒ XON-Any is disabled.
logic 1 ⇒ XON-Any is enabled.
In enhanced mode (EFR[4]=1), this bit enables the Xon-
Any operation. When Xon-Any is enabled, any received
data will be accepted as a valid XON (see in-band flow
control, section 13.3).
750 mode (Non-Enhanced mode):
logic 0 ⇒ CTS/RTS flow control disabled.
logic 1 ⇒ CTS/RTS flow control enabled.
In non-enhanced mode, this bit enables the CTS/RTS out-
of-band flow control.
MCR[6]: IrDA mode
logic 0 ⇒ Standard serial receiver and transmitter data
logic 1 ⇒ Data will be transmitted and received in IrDA
This function is only available in Enhanced mode. It
requires a 16x clock to function correctly.
MCR[7]: Baud rate prescaler select
logic 0 ⇒ Normal (divide by 1) baud rate generator
logic 1 ⇒ Divide-by-“M N/8” baud rate generator
Where M & N are programmed in CPR (ICR offset 0x01).
After a hardware reset, CPR defaults to 0x20 (divide-by-4)
and MCR[7] is loaded with the complement of the CLKSEL
pin. User writes to this flag will only take effect in enhanced
mode. See section 13.1.
DS-0031 Sep 05
OXFORD SEMICONDUCTOR LTD.
format.
format.
prescaler selected.
prescaler selected.
External—Free Release
11.2
MSR[0]: Delta CTS#
Indicates that the CTS# input has changed since the last
time the MSR was read.
MSR[1]: Delta DSR#
Indicates that the DSR# input has changed since the last
time the MSR was read.
MSR[2]: Trailing edge RI#
Indicates that the RI# input has changed from low to high
since the last time the MSR was read.
MSR[3]: Delta DCD#
Indicates that the DCD# input has changed since the last
time the MSR was read.
MSR[4]: CTS
This bit is the complement of the CTS# input. It is
equivalent to RTS (MCR[1]) during internal loop-back
mode.
MSR[5]: DSR
This bit is the complement of the DSR# input. It is
equivalent to DTR (MCR[0]) during internal loop-back
mode.
MSR[6]: RI
This bit is the complement of the RI# input. In internal loop-
back mode it is equivalent to the internal OUT1.
MSR[7]: DCD
This bit is the complement of the DCD# input. In internal
loop-back mode it is equivalent to the internal OUT2.
Modem Status Register ‘MSR’
OX16C950 rev B
Page 27