ST16C552 Exar Corporation, ST16C552 Datasheet - Page 12

• Manufacturer Part Number: ST16C552
• Description: DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT
• Manufacturer: Exar Corporation

ST16C552/552A
same system design. The rate table is configured via the
DLL and DLM internal register functions. Customized
Baud Rates can be achieved by selecting the proper
divisor values for the MSB and LSB sections of baud rate
generator.
Programming the Baud Rate Generator Registers
DLM (MSB) and DLL (LSB) provides a user capability
Rev. 3.40
Baud Rate
Table 5, BAUD RATE GENERATOR PROGRAMMING TABLE (1.8432 MHz CLOCK):
Output
115.2k
19.2k
38.4k
57.6k
MCR
1200
2400
4800
7200
9600
110
150
300
600
50
16 x Clock
(Decimal)
Divisor
Output
2304
1047
768
384
192
96
48
24
16
12
6
3
2
1
16 x Clock
Divisor
(HEX)
User
900
417
300
180
C0
0C
60
30
18
10
06
03
02
01
Program
(HEX)
Value
DLM
09
04
03
01
00
00
00
00
00
00
00
00
00
00
12
for selecting the desired final baud rate. The example in
Table 5 below, shows the selectable baud rate table
available when using a 1.8432 MHz external clock
input.
Program
Value
(HEX)
DLL
C0
0C
00
17
00
80
60
30
18
10
06
03
02
01