CM68HC05C4ACFB Motorola / Freescale Semiconductor, CM68HC05C4ACFB Datasheet - Page 82

• Manufacturer Part Number: CM68HC05C4ACFB
• Description: Microcontroller
• Manufacturer: Motorola / Freescale Semiconductor

Serial Peripheral Interface (SPI)
10.3 Features
10.4 SPI Signal Description
10.4.1 Master In Slave Out (MISO)
10.4.2 Master Out Slave In (MOSI)
General Release Specification
82
The four basic signals (MOSI, MISO, SCK, and SS) are described in the
following paragraphs. Each signal function is described for both the
master mode and slave mode.
The MISO line is configured as an input in a master device and as an
output in a slave device. It is one of the two lines that transfer serial data
in one direction, with the most significant bit sent first. The MISO line of
a slave device is placed in the high-impedance state if the slave is not
selected.
The MOSI line is configured as an output in a master device and as an
input in a slave device. It is one of the two lines that transfer serial data
in one direction with the most significant bit (MSB) sent first.
•
•
•
•
•
•
•
•
•
Full-Duplex, 4-Wire Synchronous Transfers
Master or Slave Operation
Bus Frequency Divided by 2 (Maximum) Master Bit Frequency
Bus Frequency (Maximum) Slave Bit Frequency
Four Programmable Master Bit Rates
Programmable Clock Polarity and Phase
End of Transmission Interrupt Flag
Write Collision Flag Protection
Master-Master Mode Fault Protection Capability
Serial Peripheral Interface (SPI)
MC68HC05C4A
MOTOROLA
—
Rev. 4.0