參數(shù)資料
型號: ST16C552A
廠商: Exar Corporation
英文描述: Dual UART with 16-Byte FIFO and Parallel Printer Port(雙通用異步接收器/發(fā)送器(帶16字節(jié)的先進(jìn)先出和并行打印機(jī)端口))
中文描述: 雙UART),16字節(jié)FIFO和并行打印機(jī)端口(雙通用異步接收器/發(fā)送器(帶16字節(jié)的先進(jìn)先出和并行打印機(jī)端口)
文件頁數(shù): 12/40頁
文件大小: 463K
代理商: ST16C552A
12
ST16C552/552A
Rev. 3.30
tions using the 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
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.
Table 5, BAUD RATE GENERATOR PROGRAMMING TABLE (1.8432
MHz CLOCK):
Output
Baud Rate
MCR
Output
16 x Clock
Divisor
(Decimal)
User
DLM
Program
Value
(HEX)
DLL
16 x Clock
Divisor
(HEX)
Program
Value
(HEX)
50
110
150
300
600
1200
2400
4800
7200
9600
19.2k
38.4k
57.6k
115.2k
2304
1047
768
384
192
96
48
24
16
12
6
3
2
1
900
417
300
180
C0
60
30
18
10
0C
06
03
02
01
09
04
03
01
00
00
00
00
00
00
00
00
00
00
00
17
00
80
C0
60
30
18
10
0C
06
03
02
01
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