Cirrus Logic EP93xx - Manual (Page 484)

12-6 DS785UM1
Copyright 2007 Cirrus Logic
Static Memory Controller
EP93xx User’s Guide
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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 Figure 12-5 , is required to connect some PCMCIA card signals to
the processor. Other PCMCIA card signals, also shown in Figure 12-5 , 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: