CM68HC05C4ACFB Motorola / Freescale Semiconductor, CM68HC05C4ACFB Datasheet - Page 68

• Manufacturer Part Number: CM68HC05C4ACFB
• Description: Microcontroller
• Manufacturer: Motorola / Freescale Semiconductor

Serial Communications Interface (SCI)
9.5.2 Receiver
General Release Specification
68
SCI CONTROL REGISTER 1 (SCCR1)
SCI CONTROL REGISTER 2 (SCCR2)
PD0/
RDI
INTERRUPT
REQUEST
SCI STATUS REGISTER (SCSR)
BAUD RATE REGISTER (BAUD)
SCI
SCI DATA REGISTER (SCDR)
Figure 9-3
AND CONTROL
PIN BUFFER
Serial Communications Interface (SCI)
BAUD RATE
CLOCK
Figure 9-3. SCI Receiver
shows the structure of the SCI receiver.
16X
SCI
TRANSMIT
REQUESTS
TDRE
BIT 7
BIT 7
TIE
R8
INTERNAL DATA BUS
0
RECOVERY
BIT 6
TCIE
TC
DATA
T8
6
0
NF
RDRF
SCP1
BIT 5
RIE
16
5
0
RE
FE
R8
M
SCP0
BIT 4
IDLR
ILIE
M
4
WAKE
BIT 3
8
OR
RECEIVE SHIFT REGISTER
TE
3
0
7 6 5 4 3 2 1 0
RDRF
IDLE
ILIE
RIE
SCDR ($0011)
RIE
OR
SCR2
BIT 2
RE
NF
2
0
SCR1
RWU
BIT 1
FE
1
0
MC68HC05C4A
WAKEUP
SCR0
BIT 0
BIT 0
SBK
LOGIC
0
0
RWU
$000D
$000E
$000F
$0010
$0011
MOTOROLA
—
Rev. 4.0