SC28L202 Philips Semiconductors, SC28L202 Datasheet - Page 47

• Manufacturer Part Number: SC28L202
• Description: Dual universal asynchronous receiver/transmitter DUART
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 8. Baud Rate Generator Characteristics
Crystal or Clock = 14.7456 MHz
2000 Feb 10
The following registers are unique for each Channel
Mode Register
Status Register
Clock
Select
Command
Register
Receiver
FIFO
Transmitter
FIFO
NORMAL RATE
(BAUD)
50
75
110
134.5
150
200
300
600
1050
1200
1800
2000
NOTE: Duty cycle of 16X clock is 50%
Dual UART
MRn A
SR A
CSR A
CR A
RxFIFO A
TxFIFO A
ACTUAL 16X
CLOCK (KHz)
0.8
1.2
1.759
2.153
2.4
3.2
4.8
9.6
16.756
19.2
28.8
32.056
MRn B
SR B
CSR B
CR B
RxFIFO B
TxFIFO B
1%
ERROR (%)
0
0
–0.069
0.059
0
0
0
0
–0.260
0
0
0.175
R/W
R only
W only
W only
R only
W only
41
NORMAL RATE
(BAUD)
2400
4800
7200
9600
19.2K
38.4K
14.4K
28.8K
31.25
57.6k
115.2K
230.4K
These registers 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
ACTUAL 16X
CLOCK (KHz)
38.4
76.8
115.2
153.6
307.2
614.4
230.4
460.8
500.0
921.6
1843.2
3686.4
IPCR
ACR
ISR
IMR
CTPU
CTPL
CTPU
CTPL
IPR
OPCR
Bits
Bits
ERROR (%)
0
0
0
0
0
0
0
0
1.6
0
0
0
Objective specification
SC28L202
R
W
R
W
R
R
W
W
R
W
W
W