MC68HC705C9ACP Freescale Semiconductor, MC68HC705C9ACP Datasheet - Page 59
MC68HC705C9ACP
Manufacturer Part Number
MC68HC705C9ACP
Description
IC MCU 2.1MHZ 16K OTP 40-DIP
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet
1.MC705C9ACPE.pdf
(118 pages)
Specifications of MC68HC705C9ACP
Core Processor
HC05
Core Size
8-Bit
Speed
2.1MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
24
Program Memory Size
16KB (16K x 8)
Program Memory Type
OTP
Ram Size
352 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
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Manufacturer
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Chapter 9
Serial Communications Interface (SCI)
9.1 Introduction
This section describes the on-chip asynchronous serial communications interface (SCI). The SCI allows
full-duplex, asynchronous, RS232 or RS422 serial communication between the MCU and remote devices,
including other MCUs. The transmitter and receiver of the SCI operate independently, although they use
the same baud rate generator.
9.2 Features
Features of the SCI include:
9.3 SCI Receiver Features
Features of the SCI receiver include:
Freescale Semiconductor
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Standard mark/space non-return-to-zero format
Full-duplex operation
32 programmable baud rates
Programmable 8-bit or 9-bit character length
Separately enabled transmitter and receiver
Two receiver wakeup methods:
–
–
Interrupt-driven operation capability with five interrupt flags:
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–
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Receiver framing error detection
1/16 bit-time noise detection
Receiver wakeup function (idle line or address bit)
Idle line detection
Framing error detection
Noise detection
Overrun detection
Receiver data register full flag
Idle line wakeup
Address mark wakeup
Transmitter data register empty
Transmission complete
Transmission data register full
Receiver overrun
Idle receiver input
MC68HC05C9A Advance Information Data Sheet, Rev. 4.1
59
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