Cirrus Logic EP93xx User Manual
Page 484
12-6
DS785UM1
Copyright 2007 Cirrus Logic
Static Memory Controller
EP93xx User’s Guide
1
2
1
2
12
1.
These signals go directly to the inserted PC card.
2. These signals require external logic to interface to the PC card.
3. The PCMCIA signal, nIOIS16, is not supported. The IO width can be determined by reading the card
attribute memory, and programming the IO space registers accordingly.
External logic, as shown in
, is required to connect some PCMCIA card signals to
the processor. Other PCMCIA card signals, also shown in
, connect directly to the
processor.
IOWRn
nPIOWR
1
MCREGn
nPREG
1
MCELn
nPC_CE1
1
MCEHn
nPC_CE2
1
MCRESETn
RESET_1
1
MCWAIT
nWAIT
1
AD[10:8]
PC_A[10:8]
1
AD[7:0]
PC_A[7:0]
2
DA[15:0]
PC_D[15:0]
2
MCDIR
PC_DIR
2
MCDAENn
-
2
MCADENn
-
2
VS2
GPIO.F[7]
VS2
2
READY
GPIO.F[6]
PC_RDY
2
VS1
GPIO.F[5]
VS1
2
MCBVD2
GPIO.F[4]
MCBVD2
2
MCBVD1
GPIO.F[3]
MCBVD1
2
MCD2
GPIO.F[2]
MCD2
2
MCD1
GPIO.F[1]
MCD1
2
WP
GPIO.F[0]
WP
2
Not Implemented
Not Implemented
nIOIS16
3
Table 12-2. PCMCIA Pin Usage (Continued)
Pin Name
Alternate Use If
No Card
PCMCIA Signal Name
Note: