dsp56854 Freescale Semiconductor, Inc, dsp56854 Datasheet - Page 19

• Manufacturer Part Number: dsp56854
• Description: 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
Pin No.
Table 3-1. 56854 Signal and Package Information for the 128-pin LQFP (Continued)
116
117
118
119
120
95
Signal Name
GPIOE3
GPIOC0
GPIOC1
GPIOC2
GPIOC3
GPIOC4
SRD0
SCK0
TXD1
STD0
SC00
SC01
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Output(Z)
Output
Type
Input
56854 Technical Data, Rev. 6
Serial Transmit Data 1 (TXD1)—This signal transmits data from
the SCI 1 transmit data register.
Port E GPIO (3)—This pin is a General Purpose I/O (GPIO) pin that
can individually be programmed as input or output pin.
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.
Description
Introduction
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