W83627HF Datasheet, PDF (63/185 Pages) Winbond – WINBOND I/O

W83627HF/F
PRELIMINARY
4.2.9 User-defined Register (UDR) (Read/Write)
This is a temporary register that can be accessed and defined by the user.
TABLE 4-5 BAUD RATE TABLE
Pre-Div: 13
1.8461M Hz
50
75
BAUD RATE FROM DIFFERENT PRE-DIVIDER
Pre-Div:1.625 Pre-Div: 1.0 Decimal divisor used Error Percentage between
14.769M Hz
24M Hz ^{to generate 16X clock}
desired and actual
400
650
2304
**
600
975
1536
**
110
134.5
150
300
880
1076
1200
2400
1430
1478.5
1950
3900
1047
857
768
384
0.18%
0.099%
**
**
600
4800
7800
192
**
1200
9600
15600
96
**
1800
14400
23400
64
**
2000
16000
26000
58
2400
19200
31200
48
3600
28800
46800
32
4800
38400
62400
24
0.53%
**
**
**
7200
57600
93600
16
**
9600
76800
124800
12
**
19200
153600
249600
6
**
38400
307200
499200
3
**
57600
460800
748800
2
**
115200
921600
1497600
1
**
** The percentage error for all baud rates, except where indicated otherwise, is 0.16%.
Note. Pre-Divisor is determined by CRF0 of UART A and B.
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Publication Release Date: Sep 1998
Revision 0.50