dsp56002fc80 Freescale Semiconductor, Inc, dsp56002fc80 Datasheet - Page 22

• Manufacturer Part Number: dsp56002fc80
• Description: 24-bit Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

Signal/Pin Descriptions
Synchronous Serial Interface Port
1-16
SCK
PC6
SRD
PC7
STD
PC8
Signal Name
Table 1-11 Synchronous Serial Interface (SSI) Signals (Continued)
Output
Output
Output
Output
Signal
Input
Input
Input
Input
Type
or
or
or
Tri-
stated
Tri-
stated
Tri-
stated
during
Reset
State
SSI Serial Receive Clock—This bidirectional signal provides the
serial bit rate clock for the SSI when only one clock is being used.
Port C GPIO 6 (PC6)—This signal is a GPIO signal called PC6
when the SSI function is not being used.
After reset, the default state is GPIO input.
SSI Receive Data—This input signal receives serial data and
transfers the data to the SSI Receive Shift Register.
Port C GPIO 7 (PC7)—This signal is a GPIO signal called PC7
when the SSI SRD function is not being used.
After reset, the default state is GPIO input.
SSI Transmit Data (STD)—This output signal transmits serial
data from the SSI Transmitter Shift Register.
Port C GPIO 8 (PC8)—This signal is a GPIO signal called PC8
when the SSI STD function is not being used.
After reset, the default state is GPIO input.
DSP56002/D, Rev. 3
Signal Description
MOTOROLA