Freescale Semiconductor MPC8260 Benutzerhandbuch
Parallel I/O Ports
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
40-8
Freescale Semiconductor
Figure 40-7. Primary and Secondary Option Programming
In the tables below, the default value for a primary option is simply a reference to the secondary option. In
the secondary option, the programming is relevant only if the primary option is not used for the function.
the secondary option, the programming is relevant only if the primary option is not used for the function.
shows the port A pin assignments.
Table 40-5. Port A—Dedicated Pin Assignment (PPARA = 1)
Pin
Pin Function
PSORA = 0
PSORA = 1
PDIRA = 1 (Output)
PDIRA = 0 (Input)
Defaul
t Input
t Input
PDIRA = 1 (Output)
PDIRA = 0 (Input, or
Inout if Specified)
Defaul
t Input
t Input
PA31
FCC1: TxEnb
1
UTOPIA master
FCC1: TxEnb
1
UTOPIA slave
GND
FCC1: COL
MII
GND
PA30
FCC1: TxClav
1
UTOPIA slave
FCC1: TxClav
1
UTOPIA master
FCC1: TxClav0
1
MPHY, master, direct
polling
GND
FCC1: RTS
FCC1: CRS
MII
GND
PA29
FCC1: TxSOC
1
UTOPIA
FCC1: TX_ER
MII
PA28
FCC1: RxEnb
1
UTOPIA master
FCC1: RxEnb
1
UTOPIA slave
GND
FCC1: TX_EN
MII
PA27
FCC1: RxSOC
1
UTOPIA
GND
FCC1: RX_DV
MII
GND
PA26
FCC1: RxClav
1
UTOPIA slave
FCC1: RxClav
1
UTOPIA master
FCC1: RxClav0
1
MPHY, master, direct
polling
GND
FCC1: RX_ER
MII
GND
MUX
MUX
Pin PA8
Pin PD4
GND
PPARA[8] == 1 &
PPARD[4] == 1 &
PSORA[8] == 0 &
PDIRA[8] == 0
PDIRA[8] == 0
PSORD[4] == 1 &
PDIRD[4] == 0
PDIRD[4] == 0
Primary option
Secondary option
PD4
PA8
0
1
0
1
for SMC2 RxD
for SMC2 RxD
to SMC2 RxD