Philips CEM2100/00 Service Manual page 360

20. Serial PROM Mode
20.4 Interface Specifications for UART
Table 20-5 Operating Frequency and Baud Rate in the Serial PROM Mode
Reference Baud Rate
(bps)
Baud Rate Modification
(Note 3) Data
Ref. Fre-
quency
(MHz)
1 2 1.91 to 2.10
4 3.82 to 4.19
2
4.19 3.82 to 4.19
4.9152 4.70 to 5.16
3
5 4.70 to 5.16
6 5.87 to 6.45
4
6.144 5.87 to 6.45
5 7.3728 7.05 to 7.74
6 8 7.64 to 8.39
9.8304 9.40 to 10.32
7
10 9.40 to 10.32
12 11.75 to 12.90
8 12.288 11.75 to 12.90
12.5 11.75 to 12.90
9 14.7456 14.10 to 15.48
10 16 15.27 to 16.77
Note 1: "Ref. Frequency" and "Rating" show frequencies available in the serial PROM mode. Though the frequency is supported
in the serial PROM mode, the serial PROM mode may not be activated correctly due to the frequency difference in the
external controller (such as personal computer) and oscillator, and load capacitance of communication pins.
Note 2: It is recommended that the total frequency difference is within ±3% so that auto detection is performed correctly by the ref-
erence frequency.
Note 3: The external controller must transmit the matching data (5AH) repeatedly till the auto detection of baud rate is performed.
This number indicates the number of times the matching data is transmitted for each frequency.
76800
04H
Baud
Rating
rate (%) (bps)
(MHz)
(bps)
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- -
- - 62500
76800 0.00 -
78125 +1.73 -
- - -
- - -
- - 60096
- - -
76923 +0.16 62500
62500 57600
05H 06H
(%) (bps) (%) (bps)
- - -
- - -
- - -
- - - 38400
- - - 39063
- - -
- - -
- 57600 0.00
0.00 - - 38462
- - - 38400
- - - 39063
- 57692 +0.16
- 59077 +2.56
-3.85 60096 +4.33
- 57600 0.00 38400
0.00 - - 38462
Page 238
38400 31250
07H 0AH
(%) (bps) (%) (bps)
- - - -
- - 31250 0.00 19231
- - 32734 +4.75 20144
0.00 - - 19200
+1.73 - - 19531
- - - -
- - - -
- - - - 19200
+0.16 31250 0.00 19231
0.00 - - 19200
+1.73 - - 19531
- - 31250 0.00 18750
- - 32000 +2.40 19200
- - 30048 -3.85 19531
0.00 - - 19200
+0.16 31250 0.00 19231
T5CL8
19200 9600
18H 28H
(%) (bps) (%)
- - 9615 +0.16
+0.16 9615 +0.16
+4.92 10072 +4.92
0.00 9600 0.00
+1.73 9766 +1.73
- - 9375 -2.34
- - 9600 0.00
0.00 9600 0.00
+0.16 9615 +0.16
0.00 9600 0.00
+1.73 9766 +1.73
-2.34 9375 -2.34
0.00 9600 0.00
+1.73 9766 +1.73
0.00 9600 0.00
+0.16 9615 +0.16