MC68HC711D3CFNE3 Freescale Semiconductor, MC68HC711D3CFNE3 Datasheet - Page 80

• Manufacturer Part Number: MC68HC711D3CFNE3
• Description: IC MCU 8BIT 2MHZ 44-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711D3CFNE3

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 26
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: OTP
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

8.2 SPI Transfer Formats
8-2
During an SPI transfer, data is simultaneously transmitted and received. A serial clock
line synchronizes shifting and sampling of the information on the two serial data lines.
A slave select line allows individual selection of a slave SPI device; slave devices that
are not selected do not interfere with SPI bus activities. On a master SPI device, the
select line can optionally be used to indicate a multiple master bus contention. Refer
to Figure 8-2.
÷2
SPI STATUS REGISTER
MCU CLOCK
INTERNAL
DIVIDER
÷4
SELECT
÷16 ÷32
SPI CONTROL
SPI CLOCK (MASTER)
SPI INTERRUPT
REQUEST
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 8-1 SPI Block Diagram
SERIAL PERIPHERAL INTERFACE
8
MSTR
SPE
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DATA BUS
INTERNAL
MSB
8
8/16-BIT SHIFT REGISTER
READ DATA BUFFER
8
SPI CONTROL REGISTER
CLOCK
LOGIC
LSB
CLOCK
S
M
M
S
S
M
TECHNICAL DATA
11 SPI BLOCK
MISO
MOSI
SCK
PD2
PD3
PD4
PD5
SS