mc68hc05ct4fn Freescale Semiconductor, Inc, mc68hc05ct4fn Datasheet - Page 69

• Manufacturer Part Number: mc68hc05ct4fn
• Description: Mc68hc05 Family Of Microcontrollers Mcus
• Manufacturer: Freescale Semiconductor, Inc

General Release Specification — MC68HC05CT4
9.1 Contents
9.2 Introduction
MC68HC05CT4
—
Rev. 2.0
Section 9. Synchronous Serial Interface (SSI)
9.2
9.3
9.3.1
9.3.2
9.4
9.4.1
9.4.2
9.4.3
9.5
9.6
9.7
The synchronous serial interface (SSI) is a 2-wire master/slave system
including serial clock (SCK) and serial data input/output (SDIO). Data is
transferred eight bits at a time. A software programmable option
determines whether the SSI transfers data most significant bit (MSB) or
least significant bit (LSB) first and an interrupt may be generated at the
completion of each transfer. When operating as a master device, the
serial clock speed is selectable from a choice of four rates.
Freescale Semiconductor, Inc.
For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Signal Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
SSI Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Operation During Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . .76
Operation During Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . .76
SSI Power Supply Source . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Synchronous Serial Interface (SSI)
Serial Clock (SCK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Serial Data In/Out (SDIO) . . . . . . . . . . . . . . . . . . . . . . . . . .71
SSI Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
SSI Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
SSI Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
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General Release Specification