MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 263

• 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: -

13.8 I/O Signals
13.8.1 PTE2/TxD (Transmit Data)
13.8.2 PTB0/RxD (Receive Data)
13.9 I/O Registers
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
Port B shares two of its pins with the SCI module. The two SCI I/O pins
are:
The PTB1/TxD pin is the serial data output from the SCI transmitter. The
SCI shares the PTB1/TxD pin with port B. When the SCI is enabled, the
PTB1/TxD pin is an output regardless of the state of the DDRF1 bit in
data direction register B (DDRB).
The PTB0/RxD pin is the serial data input to the SCI receiver. The SCI
shares the PTB0/RxD pin with port B. When the SCI is enabled, the
PTB0/RxD pin is an input regardless of the state of the DDRB0 bit in data
direction register B (DDRB).
These I/O registers control and monitor SCI operation:
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PTB1/TxD — Transmit data
PTB0/RxD — Receive data
SCI control register 1 (SCC1)
SCI control register 2 (SCC2)
SCI control register 3 (SCC3)
SCI status register 1 (SCS1)
SCI status register 2 (SCS2)
SCI data register (SCDR)
SCI baud rate register (SCBR)
Serial Communications Interface (SCI)
Serial Communications Interface (SCI)
Technical Data
I/O Signals
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