DSP56301PW80B1 Freescale Semiconductor, DSP56301PW80B1 Datasheet - Page 23

• Manufacturer Part Number: DSP56301PW80B1
• Manufacturer: Freescale Semiconductor

Specifications of DSP56301PW80B1

• Device Core Size: 24b
• Format: Fixed Point
• Clock Freq (max): 80MHz
• Mips: 80
• Device Input Clock Speed: 80MHz
• Ram Size: 24KB
• Program Memory Size: Not RequiredKB
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: -40C to 100C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 208
• Package Type: TQFP
• Lead Free Status / Rohs Status: Not Compliant

1.10 Serial Communication Interface (SCI)
The Serial Communication interface (SCI) provides a full duplex port for serial communication with other DSPs,
microprocessors, or peripherals such as modems.
Freescale Semiconductor
SRD1
PD4
STD1
PD5
RXD
PE0
TXD
PE1
Signal Name
Signal Name
Input/Output
Input or Output
Input/Output
Input or Output
Input
Input or Output
Output
Input or Output
Table 1-13.
Type
Type
Table 1-14.
Enhanced Synchronous Serial Interface 1 (ESSI1) (Continued)
Input
Input
Input
Input
State During
State During
Reset
Reset
DSP56301 Technical Data, Rev. 10
Serial Communication Interface (SCI)
Serial Receive Data
Receives serial data and transfers it to the ESSI receive shift register. SRD1 is
an input when data is being received.
Port D 4
The default configuration following reset is GPIO. For PD4, signal direction is
controlled through PRR1. The signal can be configured as an ESSI signal
SRD1 through PCR1.
This input is 5 V tolerant.
Serial Transmit Data
Transmits data from the serial transmit shift register. STD1 is an output when
data is being transmitted.
Port D 5
The default configuration following reset is GPIO. For PD5, signal direction is
controlled through PRR1. The signal can be configured as an ESSI signal
STD1 through PCR1.
This input is 5 V tolerant.
Serial Receive Data
Receives byte-oriented serial data and transfers it to the SCI receive shift
register.
Port E 0
The default configuration following reset is GPIO. When configured as PE0,
signal direction is controlled through the SCI Port Directions Register (PRR).
The signal can be configured as an SCI signal RXD through the SCI Port
Control Register (PCR).
This input is 5 V tolerant.
Serial Transmit Data
Transmits data from SCI transmit data register.
Port E 1
The default configuration following reset is GPIO. When configured as PE1,
signal direction is controlled through the SCI PRR. The signal can be
configured as an SCI signal TXD through the SCI PCR.
This input is 5 V tolerant.
Signal Description
Signal Description
Serial Communication Interface (SCI)
1-19