MC68HC908GR16 Datasheet, PDF (154/276 Pages) Motorola, Inc – Microcontrollers

Enhanced Serial Communications Interface (ESCI) Module
14.4.3 Receiver
Figure 14-6 shows the structure of the ESCI receiver. The receiver I/O registers are summarized in Figure
14-3.
INTERNAL BUS
LINR
SCP1
SCP0
÷4
PDS2
PDS1
PDS0
PSSB4
PSSB3
PSSB2
PSSB1
PSSB0
PRE- BAUD
SCALER DIVIDER
SCR1
SCR2
SCR0
÷ 16
RxD
DATA
RECOVERY
ALL ZEROS
BKF
RPF
M
WAKE
ILTY
PEN
PTY
WAKEUP
LOGIC
PARITY
CHECKING
IDLE
ILIE
SCRF
SCRIE
ESCI DATA REGISTER
11-BIT
RECEIVE SHIFT REGISTER
H876543210L
SCRF
RWU
IDLE
R8
ILIE
SCRIE
OR
ORIE
NF
NEIE
FE
FEIE
PE
PEIE
OR
ORIE
NF
NEIE
FE
FEIE
PE
PEIE
Figure 14-6. ESCI Receiver Block Diagram
MC68HC908GR16 Data Sheet, Rev. 5.0
154
Freescale Semiconductor