Motorola DSP56301 user manual Ground, PIN is a generic term for any pin on the chip

				Manual Conventions
	Table 1-1.High True/Low True Signal Conventions
Signal/Symbol		Logic State	Signal State	Voltage
PIN		True	Asserted	VCC
				3
PIN		False	Deasserted	Ground2
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. VCC is an acceptable high voltage level. See the appropriate data sheet for the range of acceptable high voltage levels (typically a TTL logic high).

νPins or signals that are asserted low (made active when pulled to ground) are indicated like this:

— In text, they have an overbar: for example, RESET is asserted low.

— In code examples, they have a tilde in front of their names. In Example 1-1, line 3 refers to the SS0 signal (shown as ~SS0).

νSets of signals are indicated by the first and last signals in the set, for instance HA[0–2].

ν“Input/Output” indicates a bidirectional signal. “Input or Output” indicates a signal that is exclusively one or the other.

νCode examples are displayed in a monospaced font, as shown in Example 1-1.

Example 1-1. Sample Code Listing

BFSET	#$0007,X:PCC; Configure:		line 1
	;	MISO0, MOSI0, SCK0 for SPI master	line	2
	;	~SS0 as PC3 for GPIO	line	3

νHexadecimal values are indicated with a dollar sign ($) preceding the value. For example, $FFFFFF is the X memory address for the core interrupt priority register.

νThe word “reset” appears 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

—the reset function, written as reset

Overview 1-3