Motorola MPC533 Reference Manual page 104

Signal Summary
Table 2-1. MPC533 Signal Descriptions (continued)
Signal Name
6
TXD2 / QGPO2
RXD1 / QGPI1
6
RXD2 / QGPI2
MDA[11:15, 27:31]
MPWM0 / MDI1
2-16
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
No. of Function
Type
Signals after Reset
O
1 QGPO2
O
I
1 QGPI1
I
I
1 QGPI2
I
MIOS14
10 I/O MDA[11:15,
27:31]
I/O MPWM[0]
unless the
Nexus
1 (READI) port
is enabled,
I
then MDI1.
See section
25.5.
MPC533 Reference Manual
Description
1
Transmit Data 2 – This is the serial data output from the
SCI1
Port QSCI GPO 2 – When this signal is not needed for a
SCI applications it can be configured as general-purpose
output. When the transmit enable bit in the SCI control
register is set to a logic 1, this signal cannot function as a
general-purpose output.
Receive Data 1 – This input signal is the serial data input
to the SCI1.
Port QGPI 1 – When this signal is not needed for SCI1
applications, it can be configured as a general-purpose
input. When the receive enable bit in the SCI control
register is set to a logic 1, this signal cannot function as a
general-purpose input.
Receive Data 2 – This input signal provides serial data
input to the SCI2.
Port QSPI GP 2 – When this signal is not needed for a
QSPI application it can be configured as a general-purpose
input.
Double Action – These 10 signals provide paths for two
16-bit input captures and two 16-bit output compares.
Clock and Load inputs:
• MDA11 can provide clock inputs to the modulus counter
submodule, MMCSM6
• MDA12 can provide load inputs to the modulus counter
submodule, MMCSM6
• MDA13 can provide clock inputs to MMCSM22
• MDA14 can provide load inputs to MMCSM22
• MDA27 can provide clock inputs to MMCSM23
• MDA28 can provide load inputs to MMCSM23
• MDA30 can provide clock inputs to MMCSM7
• MDA31 can provide load inputs to MMCSM7
Pulse Width Modulation 0 – This signal provides variable
pulse width outputs at a wide range of frequencies.
Message Data In – MDI1 is a NEXUS input signal used for
downloading configuration information, writes to user
resources, etc. Internal latching of MDI will occur on rising
edge of MCKI.
MOTOROLA