MC9S08QG8 Datasheet, PDF (196/300 Pages) Freescale Semiconductor, Inc – 8-BIT HCS08 Central Processor Unit

Serial Communications Interface (S08SCIV3)
Figure 14-4 shows the receiver portion of the SCI.
INTERNAL BUS
16 × BAUD
RATE CLOCK
DIVIDE
BY 16
FROM RxD PIN
M
DATA RECOVERY
LOOPS
RSRC
SINGLE-WIRE
LOOP CONTROL
FROM
TRANSMITTER
WAKE
ILT
(READ-ONLY)
SCID – Rx BUFFER
11-BIT RECEIVE SHIFT REGISTER
H876543210L
SHIFT DIRECTION
WAKEUP
LOGIC
RWU
RDRF
RIE
IDLE
ILIE
Rx INTERRUPT
REQUEST
OR
ORIE
FE
FEIE
ERROR INTERRUPT
REQUEST
NF
NEIE
PE
PARITY
PT
CHECKING
PF
PEIE
Figure 14-4. SCI Receiver Block Diagram
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 1.01
196
Freescale Semiconductor