CHAPTER 9 SERIAL INTERFACE 00
User's Manual U11919EJ3V0UM00
131
(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 found from the following expression.
[Baud rate] = [Hz]
f
ASCK
: Frequency of clock input to the ASCK pin
Table 9-4. Relationship between ASCK Pin Input Frequency
and Baud Rate (When BRGC00 is Set to 80H)
Baud Rate (bps)
ASCK Pin Input Frequency (kHz)
75
1.2
150
2.4
300
4.8
600
9.6
1,200
19.2
2,400
38.4
4,800
76.8
9,600
153.6
19,200
307.2
31,250
500.0
38,400
614.4
f
ASCK
16
Содержание mPD789026 Subseries
Страница 2: ...User s Manual U11919EJ3V0UM00 2 MEMO...
Страница 8: ...User s Manual U11919EJ3V0UM00 8 MEMO...
Страница 12: ...User s Manual U11919EJ3V0UM00 12 MEMO...
Страница 22: ...User s Manual U11919EJ3V0UM00 22 MEMO...
Страница 32: ...User s Manual U11919EJ3V0UM00 32 MEMO...
Страница 84: ...User s Manual U11919EJ3V0UM00 84 MEMO...
Страница 92: ...User s Manual U11919EJ3V0UM00 92 MEMO...
Страница 104: ...User s Manual U11919EJ3V0UM00 104 MEMO...
Страница 166: ...User s Manual U11919EJ3V0UM00 166 MEMO...
Страница 178: ...User s Manual U11919EJ3V0UM00 178 MEMO...
Страница 184: ...User s Manual U11919EJ3V0UM00 184 MEMO...
Страница 204: ...User s Manual U11919EJ3V0UM00 204 MEMO...
Страница 206: ...User s Manual U11919EJ3V0UM00 206 MEMO...
Страница 212: ...User s Manual U11919EJ3V0UM00 212 MEMO...