SC28L92 Philips Semiconductors, SC28L92 Datasheet - Page 21

• Manufacturer Part Number: SC28L92
• Description: 3.3V-5.0V Dual Universal Asynchronous Receiver/Transmitter DUART
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 2. Condensed Register bit formats
MR0 – MODE REGISTER 0
MR1 – MODE REGISTER 1
MR2 – MODE REGISTER 2
CSR – CLOCK SELECT REGISTER
CR –COMMAND REGISTER
SR – CHANNEL STATUS REGISTER
IMR – INTERRUPT MASK REGISTER (ENABLES INTERRUPTS)
ISR – INTERRUPT STATUS REGISTER
CTPU
2000 Jan 21
The following named registers are the same for
Channels A and B
Mode Register
Status Register
Clock Select
Command Register
Receiver FIFO
Transmitter FIFO
Received Break
RxRTS Control
3.3V–5.0V Dual Universal Asynchronous
Receiver/Transmitter (DUART)
Change Input
Change Input
WATCHDOG
Channel Mode
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Port
Port
Bits 7:6
–
COUNTER TIMER PRESET REGISTERS, UPPER
Channel Command codes
Receiver Clock,Select Code
Change Break B
Change Break B
Bits 7:4
Framing Error
RxINT BIT 1
RxINT BIT 2
Bits 7:4
Bit 6
Bit 6
BIT 6
Bit 6
Bit 6
MRnA
SRA
CSRA
CRA
RxFIFOA
TxFIFOA
TxRTS Control
Bit 5
Parity Error
MRnB
SRB
CSRB
CRB
RxFIFOB
TxFIFOB
BIT 5BIT 4
Error Mode
RxRDY B
RxRDY B
TxINT (1:0)
Bit 5
Bit 5
Bit 5
Bit 5
CTSN Enable Tx
8 MSB of the BRG Timer divisor.
R/W
R only
W only
W only
R only
W only
Bit 4
Overrun Error
Disable Tx
TxRDTYB
TxRDTYB
Bit 3
Parity Mode
Bit 4
Bit 4
Bit 4
Bit 4:3
FIFO SIZE
Bits 7:0
BIT 3
21
Counter Ready
Counter Ready
These are support functions for both Channels
Input Port Change Register
Auxiliary Control Register
Interrupt Status Register
Interrupt Mask Register
Counter Timer Upper Value
Counter Timer Lower Value
Counter Timer Preset Upper
Counter Timer Preset Lower
Input Port Register
Output Configuration Register
Set Output Port
Reset Output Port
Interrupt vector or GP register
TxEMT
Bit 3
Bit 3
Enable Tx
Bit 3
Bit 2
Parity Type
Transmitter Clock select code,
EXTENDED II
Bit 2
BAUD RATE
BIT 2
Change Break A
Change Break A
TxRDY
Bit 2
Bits 3:0
Bit 2
Bit 2
Enable Tx
Stop Bit Length
Bit 1
Bit 3:0
TEST 2
BIT 1
RxFULL
Bit 1
Bits per Character
RxRDY A
RxRDY A
Bit 1:0
Bit 1
Bit 1
IPCR
ACR
ISR
IMR
CTU
CTL
CTPU
CTPL
IPR
OPCR
Bits
Bits
IVR/GP
Product specification
SC28L92
Enable Rx
EXTENDED 1
BAUD RATE
Bit 0
RxRDY
BIT 0
Bit 0
TxRDY A
TxRDY A
Bit 0
Bit 0
R
W
R
W
R
R
W
W
R
W
W
W
R/W