DSP56156FV40 MOTOROLA [Motorola, Inc], DSP56156FV40 Datasheet - Page 12
DSP56156FV40
Manufacturer Part Number
DSP56156FV40
Description
16-bit Digital Signal Processor
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.DSP56156FV40.pdf
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Pin Descriptions
16-bit Timer
SSI
* These pins can be bidirectional when programmed as general purpose I/O.
16-bit Timer
Synchronous Serial
Interfaces (SSI)
STD0-1 (SSI0-1 Transmit Data) — output*.
TOUT (Timer Output) — output*. This out-
TIN (Timer Input) — input*. This input re-
acknowledge, HACK enables the HI
Interrupt Vector Register (IVR) onto
the host data bus H0-H7 if the Host Re-
quest HREQ output is asserted. In this
case, all other HI control pins are ig-
nored and the HI state is not affected.
HACK may be programmed as a gen-
eral purpose I/O pin called PB14 when
the HI is not being used.
ceives external pulses to be counted by
the on-chip 16-bit timer when external
clocking is selected. The pulses are in-
ternally synchronized to the DSP core
internal clock. TIN may be pro-
grammed as a general purpose I/O pin
called PC10 when the external event
function is not being used.
put generates pulses or toggles on a
timer overflow event or a compare
event. TOUT may be programmed as a
general purpose I/O pin called PC11
when disabled by the timer out enable
bits (TO2-TO0).
These output pins transmit serial data
from the SSI0-1 Transmit Shift Register.
STD0 and STD1 may be programmed
as a general purpose I/O pin called
Freescale Semiconductor, Inc.
For More Information On This Product,
DSP56156 Data Sheet
Go to: www.freescale.com
SC10-11 (SSI0-1 Serial Control 1) — bidirec-
SC00-01 (SSI0-1 Serial Control 0) — bidirec-
SRD0-1 (SSI0-1 Receive Data) — input*.
SCK0-1 (SSI0-1 Serial Clock) — bidirection-
PC0 and PC5, respectively, when the
STD function is not being used.
These input pins receive serial data and
transfer the data to the SSI0-1 Receive
Shift Register. SRD0 and SRD1 may be
programmed as a general purpose I/O
pin called PC1 and PC6, respectively,
when the SRD function is not being
used.
al. These bidirectional pins provide the
serial bit rate clock for the SSI0-1 inter-
face. SCK0 and SCK1 may be pro-
grammed as a general purpose I/O pin
called PC2 and PC7, respectively,
when the SSI0-1 interfaces are not be-
ing used.
tional. These bidirectional pins are
used by the SSI0-1 serial interface as
frame sync I/O or flag I/O. SC10 and
SC11 may be programmed as a general
purpose I/O pin called PC3 and PC8,
respectively, when the SSI0-1 are not
using these pins.
tional. These bidirectional pins are
used by the SSI0-1 serial interface as
frame sync I/O or flag I/O. SC00 and
SC01 may be programmed as a general
purpose I/O pin called PC4 and PC9,
respectively, when the SSI0-1 are not
using these pins.
MOTOROLA
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