MC68HC711K4CFU4 Freescale Semiconductor, MC68HC711K4CFU4 Datasheet - Page 56

• Manufacturer Part Number: MC68HC711K4CFU4
• Description: IC MCU 24K 4MHZ EEPROM 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711K4CFU4

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 62
• Program Memory Size: 24KB (24K x 8)
• Program Memory Type: OTP
• Eeprom Size: 640 x 8
• Ram Size: 768 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: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

8 Serial Peripheral Interface
56
MOTOROLA
2 4 16 32 8 16 64 128
The SPI allows the MCU to communicate synchronously with peripheral devices and other micropro-
cessors. Data rates can be as high as 2 Mbits per second when configured as a master and 4 Mbits per
second when configured as a slave (assuming 4 MHz bus speed).
Two control bits in OPT2 allow the transfer of data either MSB or LSB first and select an additional divide
by four stage to be inserted before the SPI baud rate clock divider.
OPTIONS REGISTER 2
SPSR SPI STATUS REGISTER
MCU CLOCK
INTERNAL
DIVIDER
SELECT
SPI CONTROL
SPI INTERRUPT
Freescale Semiconductor, Inc.
SPI CLOCK (MASTER)
REQUEST
For More Information On This Product,
8
Figure 12 SPI Block Diagram
Go to: www.freescale.com
MSTR
SPE
SPIE
INTERNAL
DATA BUS
MSB
8
8-BIT SHIFT REGISTER
READ DATA BUFFER
SPCR SPI CONTROL REGISTER
8
CLOCK
LOGIC
LSB
CLOCK
S
S
S
M
M
M
CONTROL
LOGIC
PIN
M68HC11 K Series
MC68HC11KTS/D
MISO/
MOSI/
SCK/
PD2
PD3
PD4
PD5
SS/