參數(shù)資料
型號: ST16C580IQ48
廠商: EXAR CORP
元件分類: 微控制器/微處理器
英文描述: UART WITH 16-BYTE FIFO’s AND INFRARED (IrDA) ENCODER/DECODER
中文描述: 1 CHANNEL(S), 1.5M bps, SERIAL COMM CONTROLLER, PQFP48
封裝: TQFP-48
文件頁數(shù): 13/41頁
文件大小: 244K
代理商: ST16C580IQ48
ST16C580
13
Rev. 1.20
Divide
by
1 logic
XTAL1
XTAL2
Divide
by
4 logic
Clock
Oscillator
Logic
Baudrate
Generator
Logic
-BAUDOUT
MCR
Bit-7=0
MCR
Bit-7=1
Crystal oscillator or External clock 1X / 4X selection
DLM (MSB) and DLL (LSB) provides a user capability
for selecting the desired final baud rate. The example
in Table 4 below, shows the two selectable baud rate
tables available when using a 7.3728 MHz crystal.
Table 4, BAUD RATE GENERATOR PROGRAM-
MING TABLE (7.3728 MHz CLOCK):
Output
Baud Rate
MCR
BIT-7=1
Output
Baud Rate
MCR
Bit-7=0
User
User
DLM
Program
Value
(HEX)
DLL
16 x Clock
Divisor
(Decimal)
16 x Clock
Divisor
(HEX)
Program
Value
(HEX)
50
75
150
300
600
1200
2400
4800
7200
9600
19.2k
38.4k
57.6k
115.2k
200
300
600
1200
2400
4800
9600
19.2K
28.8K
38.4k
76.8k
153.6k
230.4k
460.8k
2304
1536
768
384
192
96
48
24
16
12
6
3
2
1
900
600
300
180
C0
60
30
18
10
0C
06
03
02
01
09
06
03
01
00
00
00
00
00
00
00
00
00
00
00
00
00
80
C0
60
30
18
10
0C
06
03
02
01
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