Functional Description
EBC2
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© 2005 Kontron Modular Computers GmbH
ID 29022, Rev. 01
26873
.02.VC.050120/135424
P R E L I M I N A R Y
2.3.2.2
CompactFlash Interface
The following table provides a summary of the CompactFlash signals implemented on the Sys-
tem Interface Extension connector.
The CompactFlash interface is realized as a true IDE interface (PIO mode). The PC CARD
Memory Mode and the PC Card I/O Mode of the Compact Flash Specification are not support-
ed. In addition, the pinout for the Compact Flash signals have been optimized for routing to a
CompactFlash socket.
2.3.2.3
GPIO Interfacing
The EBC2 module provides a subset of six of the PPC405EP general purpose digital input/out-
put signals on this connector. The signals GPIO[00, 14, 15, 16, 30, and 31] are available for
applications requiring digital IO. These signals are implemented as 3.3V TTL for direct CPU
interfacing.
Table 2-11: CompactFlash Interface Signals
SIGNAL
DESCRIPTION
CF-D[0:15]
Compact Flash data bus – 16-bit wide
CF-CS[0:1]
Compact Flash chip select
CF-RD
Compact Flash IO read strobe
CF-WR
Compact Flash IO write strobe
CF-RST
Compact Flash reset, active low
CF-INTRQ
Compact Flash interrupt request, active high
CF-IORDY
Compact Flash IO ready
CF-A[0:2]
Compact Flash address lines
Table 2-12: GPIO Interface Signals
SIGNAL
DESCRIPTION
SIGNAL
DESCRIPTION
GPIO(0)
General purpose IO
GPIO(16)
General purpose IO
GPIO(14)
General purpose IO
GPIO(30)
General purpose IO
GPIO(15)
General purpose IO
GPIO(31)
General purpose IO
