MC68HC705C Motorola, MC68HC705C Datasheet - Page 125

• Manufacturer Part Number: MC68HC705C
• Description: HCMOS Microcontroller Unit
• Manufacturer: Motorola

10.5.2 Receiver
MC68HC705C8A — Rev. 2.0
MOTOROLA
SCI TRANSMIT
REQUESTS
BAUD RATE
PD0/
CLOCK
RDI
16X
SCI INTERRUPT
REQUEST
SCCR1 ($000E)
AND CONTROL
PIN BUFFER
Figure 10-4
10-3
M
for a summary of the SCI receiver I/O registers.
RDRF
RIE
DISABLE
DRIVER
Serial Communications Interface (SCI)
Figure 10-4. SCI Receiver
IDLE
ILIE
RE
shows the structure of the SCI receiver. Refer to
RECOVERY
DATA
OR
RIE
16
SCSR ($0010)
SCCR2 ($000F)
8
RECEIVE SHIFT REGISTER
7 6 5 4 3 2 1 0
IDLE
Serial Communications Interface (SCI)
WAKEUP
LOGIC
MSB RDRF OR
SCDR ($0011)
Technical Data
SCI Operation
Figure
125