mc68hc908ap8a Freescale Semiconductor, Inc, mc68hc908ap8a Datasheet - Page 157

• Manufacturer Part Number: mc68hc908ap8a
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

the received byte can be read. If the SCI receive interrupt enable bit, SCRIE, in SCC2 is also set, the
SCRF bit generates a receiver CPU interrupt request.
Freescale Semiconductor
CGMXCLK
IT12
SL = 0 => X = A
SL = 1 => X = B
SCIBDSRC
CONFIG2
A
B
FROM
SL
X
SCP1
SCP0
÷ 4
SCALER
WAKE
ILTY
PEN
BKF
RPF
PTY
PRE-
M
Figure 11-5. SCI Receiver Block Diagram
MC68HC908AP A-Family Data Sheet, Rev. 3
RxD
DIVIDER
BAUD
ALL 0s
CHECKING
WAKEUP
IDLE
ILIE
DMARE
SCRF
SCRIE
DMARE
SCRF
SCRIE
DMARE
OR
ORIE
NF
NEIE
FE
FEIE
PE
PEIE
PARITY
LOGIC
RECOVERY
SCR1
SCR2
SCR0
DATA
÷ 16
INTERNAL BUS
H
8
7
RECEIVE SHIFT REGISTER
SCI DATA REGISTER
6
5
11-BIT
DMARE
SCRIE
SCRF
ORIE
IDLE
NEIE
FEIE
PEIE
ILIE
4
OR
NF
PE
R8
FE
3
Functional Description
2
1
0
L
RWU
157