MC68HC908SR12CFA Freescale Semiconductor, MC68HC908SR12CFA Datasheet - Page 289

• Manufacturer Part Number: MC68HC908SR12CFA
• Description: MICROCONTROLLER 48 PIN
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908SR12CFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI
• Peripherals: LVD, POR, PWM, Temp Sensor
• Number Of I /o: 31
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: Q1145673

MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
Use this formula to calculate the SCI baud rate:
where:
Table 16-8
4.9152-MHz bus clock when f
SCI clock source = f
(selected by SCIBDSRC bit in CONFIG2 register)
PD = prescaler divisor
BD = baud rate divisor
Serial Communications Interface (SCI)
SCR2, SCR1, and SCR0
shows the SCI baud rates that can be generated with a
baud rate
Table 16-7. SCI Baud Rate Selection
000
001
010
011
100
101
110
111
BUS
=
or CGMXCLK
SCI clock source
-------------------------------------------- -
BUS
64 PD BD
×
is selected as SCI clock source.
×
Serial Communications Interface (SCI)
Baud Rate Divisor (BD)
128
16
32
64
1
2
4
8
I/O Registers
Data Sheet
289