MC68HC705C8ACFN Freescale Semiconductor, MC68HC705C8ACFN Datasheet - Page 121

• Manufacturer Part Number: MC68HC705C8ACFN
• Description: IC MCU 4MHZ 8K OTP 44-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705C8ACFN

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 2.1MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: OTP
• Ram Size: 304 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

10.1 Contents
10.2 Introduction
MC68HC705C8A — Rev. 3
MOTOROLA
Technical Data — MC68HC705C8A
Section 10. Serial Communications Interface (SCI)
10.2
10.3
10.4
10.5
10.5.1
10.5.2
10.6
10.6.1
10.6.2
10.6.3
10.6.4
10.6.5
The serial communications interface (SCI) module allows high-speed
asynchronous communication with peripheral devices and other
microcontroller units (MCUs).
Freescale Semiconductor, Inc.
For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
SCI Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
SCI Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
SCI I/O Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Serial Communications Interface (SCI)
Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
SCI Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
SCI Control Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .130
SCI Control Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
SCI Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Baud Rate Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
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Technical Data
121