Motorola DSP56367 User Manual page 30

Signal/Symbol
Note: 1. PIN is a generic term for any pin on the chip.
2. Ground is an acceptable low voltage level. See the appropriate data sheet for the
range of acceptable low voltage levels (typically a TTL logic low).
3. V
CC
range of acceptable high voltage levels (typically a TTL logic high).
• Pins or signals that are asserted low (made active when pulled to ground)
– In text, have an overbar (e.g., RESET is asserted low).
– In code examples, have a tilde in front of their names. In example below, line 3 refers
to the SS0 pin (shown as ~SS0).
• Sets of pins or signals are indicated by the first and last pins or signals in the set (e.g.,
HA1–HA8).
• Code examples are displayed in a monospaced font, as shown below:
BFSET
; ~SS0 as PC3 for GPIO
• Hex values are indicated with a dollar sign ($) preceding the hex value, as follows:
$FFFFFF is the X memory address for the core interrupt priority register (IPR-C).
• The word "reset" is used in four different contexts in this manual:
– the reset signal, written as "RESET,"
– the reset instruction, written as "RESET,"
– the reset operating state, written as "Reset," and
– the reset function, written as "reset."
iv
High True/Low True Signal Conventions
Logic State
is an acceptable high voltage level. See the appropriate data sheet for the
Example Sample Code Listing
#$0007,X:PCC; Configure:
; MISO0, MOSI0, SCK0 for SPI master
About This Guide
Signal State Voltage
line 1
line 2
line 3
MOTOROLA