Rainbow Electronics AT75C310 - Manual (Page 55)

AT75C310
55
Notes: 1. CD = clock driver
2. For information on obtaining exact baud rates using the value of CD given above, the selected clock frequency must be
23,961,600 Hz (23.9616 MHz).
Figure 10. Baud Rate Generator
Table 17. Clock Generator Table
Required Baud Rate
(bps) CD = 24 x 10 6 /
16 x Baud Rate Actual CD Actual Baud Rate (bps) Error (bps) % Error
9600 156.25 156 9615.4 15.4 0.16
19200 78.125 78 19230.8 30.8 0.16
38400 39.06 39 38461.5 61.5 0.16
57600 26.04 26 57692.3 92.3 0.16
115200 13.02 13 115384.6 184.6 0.16
USCLKS [1]
0
0
1
1
MCKI
MCKI/8
SCK
CLK
16-bit Counter
0
0
1
Baud Rate
Clock
SYNC
USCLKS [1]
CD
CD
OUT
0
1
Divide
by 16
SYNC
0
1
>1
USCLKS [0]