dsp56853 Freescale Semiconductor, Inc, dsp56853 Datasheet - Page 19

• Manufacturer Part Number: dsp56853
• Description: 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
Pin No.
Table 3-1. 56853 Signal and Package Information for the 128-pin LQFP (Continued)
116
117
118
119
120
121
Signal Name
GPIOC0
GPIOC1
GPIOC2
GPIOC3
GPIOC4
GPIOC5
SRD0
SCK0
STD0
SC00
SC01
SC02
Input /Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Output
Type
Input
56853 Technical Data, Rev. 6
ESSI Transmit Data (STD0)—This output pin transmits serial data
from the ESSI Transmitter Shift Register.
Port C GPIO (0)—This pin is a General Purpose I/O (GPIO) pin when
the ESSI is not in use.
ESSI Receive Data (SRD0)—This input pin receives serial data and
transfers the data to the ESSI Receive Shift Register.
Port C GPIO (1)—This pin is a General Purpose I/O (GPIO) pin when
the ESSI is not in use.
ESSI Serial Clock (SCK0)—This bidirectional pin provides the serial
bit rate clock for the transmit section of the ESSI. The clock signal can
be continuous or gated and can be used by both the transmitter and
receiver in synchronous mode.
Port C GPIO (2)—This pin is a General Purpose I/O (GPIO) pin when
the ESSI is not in use.
ESSI Serial Control Pin 0 (SC00)—The function of this pin is
determined by the selection of either synchronous or asynchronous
mode. For asynchronous mode, this pin will be used for the receive
clock I/O. For synchronous mode, this pin is used either for
transmitter1 output or for serial I/O flag 0.
Port C GPIO (3)—This pin is a General Purpose I/O (GPIO) pin when
the ESSI is not in use.
ESSI Serial Control Pin 1 (SC01)—The function of this pin is
determined by the selection of either synchronous or asynchronous
mode. For asynchronous mode, this pin is the receiver frame sync
I/O. For synchronous mode, this pin is used either for transmitter2
output or for serial I/O flag 1.
Port C GPIO (4)—This pin is a General Purpose I/O (GPIO) pin when
the ESSI is not in use.
ESSI Serial Control Pin 2 (SC02)—This pin is used for frame sync
I/O. SC02 is the frame sync for both the transmitter and receiver in
synchronous mode and for the transmitter only in asynchronous
mode. When configured as an output, this pin is the internally
generated frame sync signal. When configured as an input, this pin
receives an external frame sync signal for the transmitter (and the
receiver in synchronous operation).
Port C GPIO (5)—This pin is a General Purpose I/O (GPIO) pin when
the ESSI is not in use.
Description
Introduction
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