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Interconnect Signals
8.1.4
P1—CPM Expansion Connector
P1 is an 128-pin, 90 0 , DIN 41612 connector that allows for convenient expansion of the
MPC8272 serial ports. This connector contains all CPM pins plus power supply pins to
provide for easy tool connection as described in Table 8-4.
Table 8-4. P1—CPM Expansion Connector
Pin No.
A1
Signal Name
RS_RXD1 (PD31 1 )
Attribute
I/O, T.S.
Description
When RS232 port #1 is enabled, this signal is the receive data line
for that port. When this port is disabled, this signal is tristated and
may be used to any available alternate function for PD31.
A2
RS_TXD1 (PD30)
I/O, T.S.
When RS232 port #1 is enabled, this signal is the transmit data line
for that port. When this port is disabled, this signal may be used to
any available alternate function for PD30.
A3
ATMRXADR3(PD29)
I/O, T.S
ATM Multi-PHY Rx Address 3. When the ATM port Multi-PHY
function is enabled, this line is connected to the receive PHY
Address of the PM5384 ATM UNI. When this port is disabled, this
signal is tristated and may be used for any available function of
PD29.
A4
A5
A6
A7
USBRXD (PD25)
I/O, T.S.
USB RxD Line. When the USB port is enabled, this line is
connected to the receive data of the USB tranceiver. When this
port is disabled, this signal is tristated and may be used for any
available function of PD25.
A8
USBTN (PD24)
I/O, T.S.
USB TN Line. When the USB port is enabled, this line is connected
to the transmit negative line of the USB tranceiver. When this port
is disabled, this signal is tristated and may be used for any
available function of PD24.
A9
USBTP (PD23)
I/O, T.S.
USB TP Line. When the USB port is enabled, this line is connected
to the transmit positive line of the USB tranceiver. When this port
is disabled, this signal is tristated and may be used for any
available function of PD23.
A10
A11
A12
A13
ATMTXADR4(PD19)
I/O, T.S
ATM Multi-PHY Tx Address 4. When the ATM port Multi-PHY
function is enabled, this line is connected to the transmit PHY
Address of the PM5384 ATM UNI. When this port is disabled, this
signal is tristated and may be used for any available function of
PD19.
MPC8272ADS User Guide
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