2-16
MPC561/MPC563 Reference Manual
MOTOROLA
Signal Summary
MPWM1 / MDO2
1
I/O
MPWM1 unless
the Nexus
(READI) port is
enabled, then
MDO2.
Pulse Width Modulation 1. This signal provides a variable
pulse width output signal at a wide range of frequencies.
O
READI Message Data Out. Message data out (MDO2) is an
output signal used for uploading OTM, BTM, DTM, and
read/write accesses. External latching of MDO occurs on the
rising edge of MCKO. Eight MDO signals are implemented.
MPWM2 / PPM_TX1
1
I/O
MPWM2
Pulse Width Modulation 2. This signal provides a variable
pulse width output signal at a wide range of frequencies.
O
PPMTX1. Transmit data from PPM channel number 1.
MPWM3 / PPM_RX1
1
I/O
MPWM3
Pulse Width Modulation 3. This signal provides a variable
pulse width output signal at a wide range of frequencies.
I
PPMRX1. Receive data to the PPM channel number 1.
MPWM16
1
I/O
MPWM16
Pulse Width Modulation 16. This signal provides a variable
pulse width output at a wide range of frequencies.
Clock Input: MPWM16 can provide a clock input to modulus
clock submodule, MMCSM8
MPWM17 / MDO3
1
I/O
MPWM17 unless
the Nexus
(READI) port is
enabled.
Pulse Width Modulation 17. This signal provides variable
pulse width outputs at a wide range of frequencies.
Load Input: PWM17 can provide a load input to modulus
clock submodule, MMCSM8
O
READI Message Data Out. Message data out (MDO3) is an
output signal used for uploading OTM, BTM, DTM, and
read/write accesses. External latching of MDO occurs on
rising edge of MCKO. Eight MDO signals are implemented.
MPWM[18:19] / MDO[6:7]
2
I/O
MPWM[18:19]
Pulse Width Modulation [18:19]. These signals provide
variable pulse width output signals at a wide range of
frequencies.
Clock and Load Input:
MPWM18 can provide clock inputs to modulus counter
submodule MMCSM24
MPWM19 can provide load inputs to modulus counter
submodule MMCSM24
O
READI Message Data Out. Message data out (MDO[6:7])
are output signals used for uploading OTM, BTM, DTM, and
read/write accesses. External latching of MDO occurs on
rising edge of MCKO. Eight MDO signals are implemented.
Table 2-1. MPC561/MPC563 Signal Descriptions (continued)
Signal Name
No. of
Signals
Type
Function after
Reset 1
Description