MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 422

• 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

13.8 Analog Input Channels
MPC555
USER’S MANUAL
AN10
AN12
AN14
AN11
AN13
AN15
AN16
AN18
AN20
AN22
AN24
AN26
AN28
AN30
AN17
AN19
AN21
AN23
AN25
AN27
AN29
AN31
AN0
AN2
AN4
AN6
AN8
AN1
AN3
AN5
AN7
AN9
When the external multiplexed mode is selected, the QADC64 automatically creates
the MA[2:0] output signals from the channel number in each CCW. The QADC64 also
converts the proper input channel (ANw, ANx, ANy, and ANz) by interpreting the CCW
channel number. As a result, up to 32 externally multiplexed channels appear to the
conversion queues as directly connected signals. Software simply puts the channel
number of an externally multiplexed channel into a CCW.
Figure 13-3
nal multiplexing is selected, none of the MA[2:0] pins can be used for analog or digital
inputs. They become multiplexed address outputs.
The number of available analog channels varies, depending on whether or not external
multiplexing is used. A maximum of 16 analog channels are supported by the internal
multiplexing circuitry of the converter.
put channels supported with zero to four external multiplexers.
MUX
MUX
MUX
MUX
/
MPC556 QUEUED ANALOG-TO-DIGITAL CONVERTER MODULE-64
shows that MA[2:0] may also be analog or digital input pins. When exter-
Figure 13-3 Example of External Multiplexing
AN52/MA0/PQA0*
AN53/MA1/PQA1*
AN54/MA2/PQA2*
AN0/ANW/PQB0
AN1/ANX/PQB1
AN2/ANY/PQB2
AN3/ANZ/PQB3
AN55/PQA3*
AN56/PQA4*
AN57/PQA5*
AN58/PQA6*
AN59/PQA7*
AN48/PQB4
AN49/PQB5
AN50/PQB6
AN51/PQB7
V DDA
VDDH
V SSA
V SSE
V RH
V RL
ETRIG1
ETRIG2
Rev. 15 October 2000
Table 13-2
ANALOG REFERENCES
ANALOG POWER
EXTERNAL TRIGGERS
MULTIPLEXER
ANALOG
shows the total number of analog in-
CONVERTER
ANALOG
QADC64
DIGITAL RESULTS
AND CONTROL
MOTOROLA
13-10