SC28L92A1A NXP Semiconductors, SC28L92A1A Datasheet - Page 39

• Manufacturer Part Number: SC28L92A1A
• Description: UART, DUAL, 3.3V OR 5V, SMD, 28L92
• Manufacturer: NXP Semiconductors

Specifications of SC28L92A1A

• No. Of Channels: 2
• Supply Voltage Range: 2.97V To 3.63V, 4.5V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: PLCC
• No. Of Pins: 44
• Svhc: No SVHC (18-Jun-2010)
• Operating: RoHS Compliant
• Data Rate: 230.4Kilobaud
• Uart Features: Programmable Channel Mode, Line Break Detection & Generation
• Rohs Compliant: Yes

NXP Semiconductors
SC28L92_7
Product data sheet
7.3.4.2 Status Register channel B (SRB)
7.3.5 Output Configuration Control Register (OPCR)
Table 43.
[1]
The bit definitions for this register are identical to the bit definitions for SRA, except that all
status applies to the channel B receiver and transmitter and the corresponding inputs and
outputs.
This register controls the signal presented by the OP[7:2] pins. The signal presented by
the OP[1:0] pins is controlled by the Rx, Tx, and the command register. The default
condition of the OP pins is to drive the complement of the data in the OPR[7:0] register.
When OP[7:2] pins drive DMA or interrupt type signals, they switch to open-drain
configuration. Otherwise, they drive strong logic 0 or logic 1 levels.
Table 44.
Table 45.
Bit
7
6
5
4
configure
received
break
OP7
These status bits are appended to the corresponding data character in the receive FIFO. A read of the
status provides these bits [7:5] from the top of the FIFO together with bits [4:0]. These bits are cleared by a
reset error status command. In character mode they are discarded when the corresponding data character
is read from the FIFO. In block error mode, the error-reset command (command 0x4 or receiver reset) must
used to clear block error conditions.
7
7
[1]
Symbol
-
-
-
-
SRB - Status register channel B (address 0x9) bit allocation
OPCR - Output configuration control register (address 0xD) bit allocation
OPCR - Output configuration control register (address 0xD) bit description
configure
framing
error
OP6
6
6
[1]
Description
OP7 output select
OP6 output select
OP5 output select
OP4 output select
Rev. 07 — 19 December 2007
0 = The complement of OPR[7]
1 = The channel B transmitter interrupt output which is the complement of
ISR[4]. When in this mode OP7 acts as an open-drain output. Note that
this output is not masked by the contents of the IMR.
0 = The complement of OPR[6]
1 = The channel A transmitter interrupt output which is the complement of
ISR[0]. When in this mode OP6 acts as an open-drain output. Note that
this output is not masked by the contents of the IMR.
0 = The complement of OPR[5]
1 = The channel B receiver interrupt output which is the complement of
ISR[5]. When in this mode OP5 acts as an open-drain output. Note that
this output is not masked by the contents of the IMR.
0 = The complement of OPR[4]
1 = The channel A receiver interrupt output which is the complement of
ISR[1]. When in this mode OP4 acts as an open-drain output. Note that
this output is not masked by the contents of the IMR.
3.3 V/5.0 V Dual Universal Asynchronous Receiver/Transmitter
configure
error
parity
OP5
5
5
[1]
overrun
configure
error
4
OP4
4
TxEMTB
3
configure OP3
3
TxRDYB
2
2
RxFULLB
SC28L92
© NXP B.V. 2007. All rights reserved.
1
configure OP2
1
RxRDYB
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0
0