MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 274

• Manufacturer Part Number: MC908MR8MPE
• Description: IC MCU 8BIT 8K FLASH 28-PDIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908MR8MPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 12
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Serial Communications Interface (SCI)
Technical Data
274
BYTE 1
BYTE 1
FE — Receiver Framing Error Bit
PE — Receiver Parity Error Bit
READ SCS1
READ SCDR
This clearable, read-only bit is set when a logic 0 is accepted as the
stop bit. FE generates an SCI error CPU interrupt request if the FEIE
bit in SCC3 also is set. Clear the FE bit by reading SCS1 with FE set
and then reading the SCDR. Reset clears the FE bit.
This clearable, read-only bit is set when the SCI detects a parity error
in incoming data. PE generates a PE CPU interrupt request if the
PEIE bit in SCC3 is also set. Clear the PE bit by reading SCS1 with
PE set and then reading the SCDR. Reset clears the PE bit.
SCRF = 1
Figure 13-11. Flag Clearing Sequence
OR = 0
BYTE 1
1 = Framing error detected
0 = No framing error detected
1 = Parity error detected
0 = No parity error detected
Serial Communications Interface (SCI)
READ SCDR
READ SCS1
BYTE 2
BYTE 2
DELAYED FLAG CLEARING SEQUENCE
SCRF = 1
NORMAL FLAG CLEARING SEQUENCE
BYTE 1
OR = 0
READ SCS1
READ SCDR
SCRF = 1
BYTE 2
OR = 0
BYTE 3
BYTE 3
READ SCDR
READ SCDR
READ SCS1
READ SCS1
SCRF = 1
SCRF = 1
BYTE 3
BYTE 3
OR = 1
OR = 0
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
BYTE 4
BYTE 4