MC711P2CFNE3 Freescale Semiconductor, MC711P2CFNE3 Datasheet - Page 104

• Manufacturer Part Number: MC711P2CFNE3
• Description: IC MCU 8BIT 84-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC711P2CFNE3

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 3MHz
• 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: Lead free / RoHS Compliant

Serial Communications Interface (SCI)
5.10 Additional SCI subsystems
5.10.1 SCI2
Technical Data
In addition to the subsystem described in the above paragraphs (SCI1),
the MC68HC11P2 has two other, similar, SCI modules (SCI2, SCI3).
These two systems are identical to that described, with the following
exceptions:
SCI2 and SCI3 share I/O with four port H pins:
The SCI2 transmit and receive functions are enabled by TE2 and RE2
respectively, in S2CR2; similarly, the SCI3 transmit and receive
functions are enabled by TE3 and RE3 respectively, in S3CR2.
SCI1 functions and data are handled by a register block at
$0070–$0077. The corresponding registers for SCI2 and SCI3 are at
addresses $0050–$0057 and $005A–$005F respectively, as shown in
the following sections.
SCI2 and SCI3 share the same baud rate register (at $0050/51).
In addition to their SCI functions, these two subsystems are also used
for MI BUS, controlled by bit 5 of their respective SCCR1 registers. Refer
to
operation.
SCI2 shares I/O with two of port H’s pins: receive pin RXD2/PH6 and
transmit pin TXD2/PD7. The SCI receive and transmit functions are
enabled by RE and TE respectively, in S2CR2.
Motorola Interconnect Bus (MI BUS)
Freescale Semiconductor, Inc.
For More Information On This Product,
Serial Communications Interface (SCI)
Go to: www.freescale.com
PH4
PH5
PH6
PH7
Pin
Alternate
function
RXD2
RXD3
TXD2
TXD3
for full details of MI BUS
MC68HC11P2 — Rev 1.0