Freescale Semiconductor PowerQUICC MPC885 Reference Manual page 367

Table 12-2. MPC875/MPC870 Signal Descriptions (continued)
Hard
Name
Reset
PE29 Hi-Z
MII2-CRS
PE28 Hi-Z
TOUT3
MII2-COL
PE27 Hi-Z
L1RQB
MII2-RXER
RMII2-RXER
PE26 Hi-Z
L1CLKOB
MII2-RXDV
RMII2-CRS_D
V
PE25 Hi-Z
RXD4
MII2-RXD3
L1ST2
PE24 Hi-Z
SMRXD1
BRGO1
MII2-RXD2
PE23 Hi-Z
TXD4
MII2-RXCLK
L1ST1
PE22 Hi-Z
TOUT2
MII2-RXD1
RMII2-RXD1
SDACK1
PE21 Hi-Z
TOUT1
MII2-RXD0
RMII2-RXD0
PE20 Hi-Z
MII2-TXER
Freescale Semiconductor
Number Type
U7 Bidirectional General-Purpose I/O Port E Bit 29
(optional: MII2-CRS —Media-independent interface 2, carrier receive sense
open-drain)
R7 Bidirectional General-Purpose I/O Port E Bit 28
(optional: TOUT3—Timer 3 output.
open-drain) MII2-COL—Media-independent interface 2 collision
T6 Bidirectional General-Purpose I/O Port E Bit 27
(optional: L1RQB—D-channel request signal for serial interface TDMb.
open-drain) MII2-RXER —Media-independent interface 2, receive error.
RMII2-RXER—Reduced media-independent interface 2, receive
error.
T2 Bidirectional General-Purpose I/O Port E Bit 26
(optional: L1CLKOB—Clock output from the serial interface TDMb.
open-drain) MII2-RXDV—Media-independent interface 2, receive data valid.
RMII2-CRS_DV—Reduced media-independent interface 2,
carrier receive sense or data valid.
R4 Bidirectional General-Purpose I/O Port E Bit 25
(optional: RXD4—Receive data input for SCC4.
open-drain) MII2-RXD3—Media-independent interface 2, receive data 3.
L1ST2—One of four output strobes that can be generated by the
serial interface.
U8 Bidirectional General-Purpose I/O Port E Bit 24
(optional: SMRXD1—SMC1 receive data input.
open-drain) BRGO1—Output clock of BRG1.
MII2-RXD2—Media-independent interface 2, receive data 2.
U4 Bidirectional General-Purpose I/O Port E Bit 23
(optional: TXD4—Transmit data for serial channel 4.
open-drain) MII2-RXCLK—Media-independent interface 2, receive clock.
L1ST1—One of four output strobes that can be generated by the
serial interface.
P4 Bidirectional General-Purpose I/O Port E Bit 22
(optional: TOUT2—Timer 2 output.
open-drain) MII2-RXD1—Media-independent interface 2, receive data 1.
RMII2-RXD1—Reduced media-independent interface 2, receive
data 1.
SDACK1—SDMA acknowledge 1 output that is used as a
peripheral interface signal for IDMA emulation, or as a CAM
interface signal for Ethernet.
T9 Bidirectional General-Purpose I/O Port E Bit 21
(optional: TOUT1—Timer 1 output.
open-drain) MII2-RXD0—Media-independent interface 2, receive data 0.
RMII2-RXD0—Reduced media-independent interface 2, receive
data 0.
U3 Bidirectional General-Purpose I/O Port E Bit 20
(optional: MII2-TXER - Media independent interface 2, transmit error.
open-drain)
MPC885 PowerQUICC Family Reference Manual, Rev. 2
External Signals
Description
12-37