1-3
Signal Groupings
FCC1
ATM/UTOPIA
MPHY
Master
mux poll
or Slave
MPHY
Master
dir. poll
FCC1
Ethernet
MII
HDLC/
transp.
HDLC
Serial
Nibble
GPIO
TXENB
COL
PA31
TXCLAV
TXCLAV0
CRS
RTS
PA30
TXSOC
TX_ER
PA29
RXENB
TX_EN
PA28
RXSOC
RX_DV
PA27
RXCLAV
RXCLAV0
RX_ER
SDMA
PA26
TXD0
MSNUM0
PA25
TXD1
MSNUM1
PA24
TXD2
PA23
TXD3
PA22
TXD4
TXD3
TXD3
PA21
TXD5
TXD2
TXD2
PA20
TXD6
TXD1
TXD1
PA19
TXD7
TXD0
TXD
TXD0
PA18
RXD7
RXD0
RXD
RXD0
PA17
RXD6
RXD1
RXD1
PA16
RXD5
RXD2
RXD2
PA15
RXD4
RXD3
RXD3
PA14
RXD3
MSNUM2
PA13
RXD2
SI1
MSNUM3
PA12
RXD1
TDMA1
MSNUM4
PA11
RXD0
SMC2
Serial
Nibble
MSNUM5
PA10
SMTXD
L1TXD
L1TXD0
PA9
FCC2
SMRXD
L1RXD
L1RXD0
PA8
Ethernet
MII
HDLC/
transp.
HDLC
SMSYN
L1TSYNC
SI2
PA7
Serial
Nibble
SCC2
L1RSYNC
TDMB2
PA6
TX_ER
RXD
L1TXD
PB31
RX_DV
TXD
L1RXD
PB30
TX_EN
L1RSYNC
PB29
RX_ER
RTS
RTS/TENA
L1TSYNC
PB28
COL
TDMC2
L1TXD
PB27
CRS
L1RXD
PB26
TXD3
TXD3
L1TXD3
L1TSYNC
PB25
TXD2
TXD2
L1RXD3
L1RSYNC
PB24
TXD1
TXD1
L1RXD2
TDMD2
L1TXD
PB23
TXD0
TXD
TXD0
L1RXD1
L1RXD
PB22
RXD0
RXD
RXD0
L1TXD2
L1TSYNC
PB21
RXD1
RXD1
L1TXD1
L1RSYNC
I
2
C
PB20
RXD2
RXD2
SDA
PB19
RXD3
RXD3
SCL
BRGs
Clocks Timers
PB18
Ext. Req.
BRG1O
CLK1
TGATE1 PC31
EXT1
BRG2O
CLK2
TOUT1
PC30
SCC1
CTS/CLSN
BRG3O
CLK3
TIN2
PC29
CTS/CLSN
SIU Timer Input
BRG4O
CLK4
TIN1/
TOUT2
PC28
CLK5
BRG5O
CLK5
TGATE2 PC27
TMCLK
BRG6O
CLK6
TOUT3
PC26
DMA
DACK2
BRG7O
CLK7
TIN4
PC25
Ext. Req.
DREQ2
BRG8O
CLK8
TIN3/
TOUT4
PC24
EXT2
DACK1
CLK9
PC23
SCC1
LIST1
DREQ1
CLK10
PC22
TXADDR0
CTS/CLSN
SMTXD
PC15
RXADDR0
CD/RENA
LIST2
PC14
TXADDR1
CTS/CLSN
LIST4
PC13
RXADDR1
FCC1
CD/RENA
LIST3
PC12
TXADDR2
TXADDR2/
TXCLAV1
CTS
LIST1
PC7
RXADDR2
RXADDR2/
RXCLAV1
CD
LIST2
PC6
FCC2
SMC1
CTS
SMTXD
LIST3
PC5
CD
SMRXD
LIST4
PC4
RXD
DRACK1/DONE1
PD31
TXD
DRACK2/DONE2
PD30
RXADDR3
RXCLAV2
RTS/TENA
SPI
PD29
TXADDR4
TXCLAV3
SPISEL
BRG1O
PD19
RXADDR4
RXCLAV3
SPICLK
PD18
RXPRTY
SPIMOSI
BRG2O
PD17
TXPRTY
SPIMISO
PD16
TXADDR3
TXCLAV2
SMSYN
PD7
Figure 1-2. CPM Port A–D Pin Multiplexed Functionality