MC68HC908GR16CFJ Freescale Semiconductor, MC68HC908GR16CFJ Datasheet - Page 149

• Manufacturer Part Number: MC68HC908GR16CFJ
• Description: IC MCU 16K FLASH 8MHZ SPI 32LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR16CFJ

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: LIN, SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

14.4 Functional Description
Figure 14-2
serial communication between the MCU and remote devices, including other MCUs. The transmitter and
receiver of the ESCI operate independently, although they use the same baud rate generator. During
normal operation, the CPU monitors the status of the ESCI, writes the data to be transmitted, and
processes received data.
Freescale Semiconductor
CGMXCLK
BUS CLOCK
SL=1 -> SCI_CLK = BUSCLK
SL=0 -> SCI_CLK = CGMXCLK
RxD
shows the structure of the ESCI module. The ESCI allows full-duplex, asynchronous, NRZ
SCRIE
SCTIE
LINR
TCIE
RWU
SBK
ILIE
RE
SL
TE
SHIFT REGISTER
ESCI DATA
REGISTER
RECEIVE
÷ 4
CONTROL
WAKEUP
SCTE
SCRF
Figure 14-2. ESCI Module Block Diagram
IDLE
SCALER
TC
ENSCI
PRE-
MC68HC908GR16 Data Sheet, Rev. 5.0
GENERATOR
BAUD RATE
÷ 16
CONTROL
RECEIVE
INTERNAL BUS
LOOPS
RPF
BKF
DATA SELECTION
CONTROL
OR
NF
PE
FE
FLAG
CONTROL
WAKE
ILTY
PEN
LOOPS
PTY
ENSCI
M
TRANSMIT
CONTROL
SHIFT REGISTER
TXINV
ORIE
NEIE
FEIE
PEIE
R8
REGISTER
TRANSMIT
T8
ESCI DATA
LINT
BUS CLOCK
Functional Description
SCI_TxD
ACLK BIT IN SCIACTL
ARBITER-
RxD
SL
149
TxD