Datasheet

Functional Description
MC68HC908QB8 Data Sheet, Rev. 3
Freescale Semiconductor 115
Figure 13-5. ESCI Receiver Block Diagram
ALL ONES
ALL ZEROS
M
WAKE
ILTY
PEN
PTY
BKF
RPF
H876543210L
11-BIT
RECEIVE SHIFT REGISTER
STOP START
DATA
RECOVERY
OR
ORIE
NF
NEIE
FE
FEIE
PE
PEIE
SCRIE
SCRF
ILIE
IDLE
WAKEUP
LOGIC
PARITY
CHECKING
MSB
ESCI DATA REGISTER
R8
SCRIE
ILIE
RWU
SCRF
IDLE
INTERNAL BUS
PRE-
SCALER
BAUD
DIVIDER
÷ 4 ÷ 16
SCP1
SCP0
SCR1
SCR2
SCR0
RxD
PRE-
SCALER
PDS1
PDS2
PDS0
PSSB3
PSSB4
PSSB2
PSSB1
PSSB0
LINR
ORIE
NEIE
FEIE
PEIE
OR
NF
FE
PE
BUSCLKX4
OR
BUS CLOCK
INTERRUPT
REQUEST
ERROR
INTERRUPT
RECEIVER
REQUEST