NEC PD78052 User Manual page 451

(b) Generation of baud rate transmit/receive clock by means of external clock from ASCK pin
The transmit/receive clock is generated by scaling the clock input from the ASCK pin. The baud rate
generated from the clock input from the ASCK pin is obtained with the following expression.
[Baud rate] =
2
f
ASCK
k
Table 19-4. Relation between ASCK Pin Input Frequency and Baud Rate (When BRGC is set to 00H)
Baud Rate (bps)
75
110
150
300
600
1200
2400
4800
9600
19200
31250
38400
CHAPTER 19 SERIAL INTERFACE CHANNEL 2
f
ASCK
[Hz]
(k+16)
: Frequency of clock input to ASCK pin
: Value set in MDL0 to MDL3 (0
ASCK Pin Input Frequency
2.4 kHz
3.52 kHz
4.8 kHz
9.6 kHz
19.2 kHz
38.4 kHz
76.8 kHz
153.6 kHz
307.2 kHz
614.4 kHz
1000.0 kHz
1228.8 kHz
k 14)
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