MC68HC711P2CFN4 Freescale Semiconductor, MC68HC711P2CFN4 Datasheet - Page 88

• Manufacturer Part Number: MC68HC711P2CFN4
• Description: IC MCU 32K OTP 4MHZ 84-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711P2CFN4

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: MI Bus, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Eeprom Size: 640 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 84-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Serial Communications Interface (SCI)
5.3 Data format
Technical Data
ST4XCK
SCBDH/L: SCI baud control
13-bit compare
Figure 5-1. SCI baud rate generator circuit diagram
13-bit counter
The SCI shares I/O with two of port D’s pins:
The SCI transmit and receive functions are enabled by TE and RE
respectively, in SCCR2.
The SCI features enabled on this MCU include: 13-bit modulus
prescaler; idle line detect; receiver-active flag; transmitter and receiver
hardware parity. A block diagram of the enhanced baud rate generator
is shown in
values.
The serial data format requires the following conditions:
Freescale Semiconductor, Inc.
•
•
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For More Information On This Product,
An idle-line condition before transmission or reception of a
message.
A start bit, logic zero, transmitted or received, that indicates the
start of each character.
Data that is transmitted and received least significant bit (LSB)
first.
Serial Communications Interface (SCI)
Reset
EQ
Figure
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5-1. See
÷
2
PD0
PD1
Pin
Table 5-1
phase 2 clock
Internal
Alternate
function
RXD1
TXD1
for example baud rate control
Sync
MC68HC11P2 — Rev 1.0
÷
16
Transmitter
baud rate
baud rate
Receiver
clock
clock