Freescale Semiconductor PowerQUICC MPC885 Reference Manual page 348

External Signals
Table 12-1. MPC885/MPC880 Signal Descriptions (continued)
Hard
Name
Reset
PC[14] Hi-Z
DREQ1
RTS2
L1ST2
PC[13] Hi-Z
MII1-TXD3
SDACK1
PC[12] Hi-Z
MII1-TXD2
TOUT1
PC[11] Hi-Z
USBRXP
PC[10] Hi-Z
USBRXN
TGATE1
PC[9] Hi-Z
CTS2
PC[8] Hi-Z
CD2
TGATE2
PC[7] Hi-Z
CTS4
L1TSYNCB
USBTXP
PC[6] Hi-Z
CD4
L1RSYNCB
USBTXN
PC[5] Hi-Z
CTS3
L1TSYNCA
SDACK2
12-18
Number Type
R18 Bidirectional General-Purpose I/O Port C Bit 14—Bit 14 of the
general-purpose I/O port C
DREQ1—IDMA channel 2 request input
RTS2—Request to send modem line for SCC2
L1ST2—One of four output strobes that can be generated by the
serial interface
V10 Bidirectional General-Purpose I/O Port C Bit 13—Bit 13 of the
general-purpose I/O port C
MII1-TXD3—Media-independent interface 1, transmit data 3
SDACK1—SDMA acknowledge 1 output that is used as a
peripheral interface signal for IDMA emulation or as a CAM
interface signal for Ethernet.
T18 Bidirectional General-Purpose I/O Port C Bit 12—Bit 12 of the
general-purpose I/O port C
MII1-TXD2—Media-independent interface 1, transmit data 2
TOUT1—Timer 1 output
V16 Bidirectional General-Purpose I/O Port C Bit 11—Bit 11 of the
general-purpose I/O port C
USBRXP—USB receive - gated version of D+
U15 Bidirectional General-Purpose I/O Port C Bit 10—Bit 10 of the
general-purpose I/O port C
USBRXN—USB receive - gated version of D-.
TGATE1—Timer 1/timer 2 gate signal
T14 Bidirectional General-Purpose I/O Port C Bit 9—Bit 9 of the general-purpose
I/O port C
CTS2—Clear to send modem line for SCC2
W14 Bidirectional General-Purpose I/O Port C Bit 8—Bit 8 of the general-purpose
I/O port C
CD2—Carrier detect modem line for SCC2
TGATE2—Timer 3/timer 4 gate signal
V12 Bidirectional General-Purpose I/O Port C Bit 7—Bit 7 of the general-purpose
I/O port C
CTS4—Clear to send modem line for SCC4
L1TSYNCB—Transmit sync input for serial interface TDMb.
USBTXP—USB transmit +.
U11 Bidirectional General-Purpose I/O Port C Bit 6—Bit 6 of the general-purpose
I/O port C
CD4—Carrier detect modem line for SCC4
L1RSYNCB—Receive sync input for the serial interface TDMb
USBTXN—USB transmit -
T10 Bidirectional General-Purpose I/O Port C Bit 5—Bit 5 of the general-purpose
I/O port C
CTS3—Clear to send modem line for SCC3
L1TSYNCA—Transmit sync input for serial interface TDMa
SDACK2—SDMA acknowledge 1 output that is used as a
peripheral interface signal for IDMA emulation or as a CAM
interface signal for Ethernet
MPC885 PowerQUICC Family Reference Manual, Rev. 2
Description
Freescale Semiconductor