MC68306 Motorola, MC68306 Datasheet - Page 132

• Manufacturer Part Number: MC68306
• Description: Integrated EC000 Processor
• Manufacturer: Motorola

RxRDY—Receiver Ready
6.4.1.4 CLOCK-SELECT REGISTER (DUCSR). The DUCSR selects the baud rate clock
for the channel receiver and transmitter.
RCS3–RCS0—Receiver Clock Select
6-24
These bits select the baud rate clock for the channel receiver from a set of baud rates
listed in Table 6-5. The baud rate set selected depends upon the auxiliary control
register (DUACR) bit 7. Set 1 is selected if DUACR bit 7 = 0, and set 2 is selected if
DUACR bit 7 = 1. The receiver clock is always 16 times the baud rate shown in this list,
except when the clock select bits = 1111.
1 = One or more characters has been received in channel B and is waiting in the
0 = The CPU has read the receiver buffer, and no characters remain in the FIFO
receiver buffer FIFO.
after this read.
DUCSRA, DUCSRB
Write Only
RESET:
RCS3
7
0
RCS2
6
0
MC68306 USER'S MANUAL
RCS1
5
0
RCS0
4
0
TCS3
3
0
TCS2
2
0
TCS1
1
0
TCS0
0
0
MOTOROLA