MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 413

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

13.1 Overview
MPC555 / MPC556 QUEUED ANALOG-TO-DIGITAL CONVERTER MODULE-64
USER’S MANUAL
The MPC555 / MPC556 includes two independent queued analog-to-digital converter
(QADC64) modules. For details of QADC64 operation not included in this section, re-
fer to the
The QADC64 consists of an analog front-end and a digital control subsystem, which
includes an intermodule bus (IMB3) interface block. Refer to
The analog section includes input pins, channel selection logic, an analog multiplexer,
and one sample-and-hold analog circuit. The analog conversion is performed by the
digital-to-analog converter (DAC) resistor-capacitor array, a high-gain comparator,
and a successive approximation register (SAR).
The digital control section contains the conversion sequencing logic. Also included are
the periodic/interval timer, control and status registers, the conversion command word
(CCW) table RAM, and the result word table RAM.
EXTERNAL
TRIGGERS
QUEUED ANALOG-TO-DIGITAL CONVERTER MODULE-64
CONTROL
DIGITAL
QADC Reference Manual
IMB
MUX ADDRESS
EXTERNAL
INTERMODULE BUS
Figure 13-1 QADC64 Block Diagram
INTERFACE
COMMAND WORDS (CCW), 64 ENTRIES
Rev. 15 October 2000
QUEUE OF 10-BIT CONVERSION
ANALOG INPUT MULTIPLEXER AND
SECTION 13
DIGITAL PIN FUNCTIONS
(QADCRM/AD).
UP TO 16 ANALOG
INPUT PINS
10-BIT ANALOG TO DIGITAL CONVERTER
Figure
10-BIT RESULT TABLE,
REFERENCE
RESULT ALIGNMENT
INPUTS
10-BIT TO 16-BIT
64 ENTRIES
13-1.
ANALOG POWER
INPUTS
MOTOROLA
13-1