MC68HC908GZ60 Datasheet, PDF (192/352 Pages) Freescale Semiconductor, Inc – Microcontrollers

Enhanced Serial Communications Interface (ESCI) Module
INTERNAL BUS
BUS
CLOCK
CGMXCLK
ESCI DATA
REGISTER
RxD
RECEIVE
SHIFT REGISTER
ESCI DATA
REGISTER
RxD
SCI_TxD
TRANSMIT
TxD
SHIFT REGISTER
LINR
SCTIE
TCIE
SCRIE
ILIE
TE
RE
RWU
SBK
SCTE
TC
SCRF
IDLE
WAKEUP
CONTROL
TXINV ^{BUS CLOCK}
R8
SL
T8
ACLK BIT
IN SCIACTL
OR
NF
FE
PE
LOOPS
RECEIVE
CONTROL
FLAG
CONTROL
LOOPS
ENSCI
ORIE
NEIE
FEIE
PEIE
TRANSMIT
CONTROL
BKF
ENSCI
ENHANCED
RPF
PRESCALER
SL
÷4
PRE- BAUD RATE
SCALER GENERATOR
M
LINT
WAKE
ILTY
PEN
PTY
÷ 16
DATA SELECTION
CONTROL
SL = 1 -> SCI_CLK = BUSCLK
SL = 0 -> SCI_CLK = CGMXCLK
Figure 14-3. ESCI Module Block Diagram
MC68HC908GZ60 • MC68HC908GZ48 • MC68HC908GZ32 Data Sheet, Rev. 6
192
Freescale Semiconductor