MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 276

• 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)
13.9.6 SCI Data Register
13.9.7 SCI Baud Rate Register
Technical Data
276
The SCI data register (SCDR) is the buffer between the internal data bus
and the receive and transmit shift registers. Reset has no effect on data
in the SCI data register.
Reset:
R7/T7:R0/T0 — Receive/Transmit Data Bits
The SCI baud rate register (SCBR) selects the baud rate for both the
receiver and the transmitter.
Reset:
dress:
dress:
Read:
Read:
Write:
Write:
Ad-
Reading address $003D accesses the read-only received data bits,
R7:R0. Writing to address $003D writes the data to be transmitted,
T7:T0. Reset has no effect on the SCI data register.
Ad-
$003D
$003E
Serial Communications Interface (SCI)
Bit 7
Bit 7
R7
T7
R
R
0
0
Figure 13-14. SCI Baud Rate Register (SCBR)
Figure 13-13. SCI Data Register (SCDR)
= Reserved
R6
T6
R
6
6
0
0
SCP1
R5
T5
5
5
0
Unaffected by reset
SCP0
R4
T4
4
4
0
R3
T3
R
3
3
0
0
MC68HC908MR8 — Rev 4.1
SCR2
R2
T2
Freescale Semiconductor
2
2
0
SCR1
R1
T1
1
1
0
SCR0
Bit 0
Bit 0
R0
T0
0