Table 2−18. Smart Media/XD Terminals
If any Smart Media/XD terminal is unused, then the terminal may be left floating.
TERMINAL
I/O
TYPE
PU/
PD
POWER
RAIL
EXTERNAL
PARTS
DESCRIPTION
INPUT OUTPUT
NAME
NO.
Power switch or
FET to turn power
on to FM socket
MC_PWR_CTRL_0
MC_PWR_CTRL_1
F01
F02
Media card power control for flash media sockets.
O
LVCO1
SmartMedia address latch enable. This signal
functions as specified in the SmartMedia
specification, and is used to latch addresses
passed over SM_D7−SM_D0.
SM_ALE
SM_CD
SM_CE
J03
F06
H07
O
I
TTLO2
SW2
PU2
SW2
V
CC
CC
CC
SmartMedia card detect. This input is asserted
when SmartMedia cards are inserted.
LVCI1
V
V
SmartMedia card enable. This signal functions as
specified in the SmartMedia specification, and is
used to enable the media for a pending
transaction.
O
TTLO2
SmartMedia command latch enable. This signal
functions as specified in the SmartMedia
specification, and is used to latch commands
passed over SM_D7−SM_D0.
SM_CLE
J07
O
TTLO2
SW2
SW2
V
CC
SM_D7
SM_D6
SM_D5
SM_D4
SM_D3
SM_D2
SM_D1
SM_D0
SM_EL_WP
J02
J01
J06
SmartMedia data terminals. These signals pass
data to and from the SmartMedia, and functions
as specified in the SmartMedia specifications.
H03
H05
G03
G02
G01
G05
I/O
TTLI2
TTLO2
V
V
CC
SmartMedia electrical write protect.
O
I
TTLO2
PCIO5
SW2
SW3
CC
SmartMedia physical write protect. This input
comes from the write protect tab of the
SmartMedia card.
SM_PHYS_WP
SM_RE
K02
J05
K01
F03
PCII5
PCII5
SmartMedia read enable. This signal functions as
specified in the SmartMedia specification, and is
used to latch a read transfer from the card.
O
I
TTLO2
PCIO5
TTLO2
SW2
SW3
SW2
V
V
V
CC
CC
CC
SmartMedia read/busy. This signal functions as
specified in the SmartMedia specification, and is
used to pace data transfers to the card.
SM_R/B
SmartMedia write enable. This signal functions as
specified in the SmartMedia specification, and is
used to latch a write transfer to the card.
SM_WE
O
2−27
TI [ TEXAS INSTRUMENTS ]
