Texas Instruments Dual/Single Socket CardBus and UntraMedia Controller PCI7621 - Manual (Page 54)

2−28
Table 2−18. Smart Media/XD Terminals
If any Smart Media/XD terminal is unused, then the terminal may be left floating.
TERMINAL
DESCRIPTION
I/O
INPUT OUTPUT
PU/ POWER EXTERNAL
NAME NO.
DESCRIPTION
I/O
TYPE
INPUT OUTPUT
PU/
PD
POWER
RAIL
EXTERNAL
PARTS
MC_PWR_CTRL_0
MC_PWR_CTRL_1
F01
F02
Media card power control for flash media sockets. O LVCO1
Power switch or
FET to turn power
on to FM socket
SM_ALE J03
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.
O TTLO2 SW2 VCC
SM_CD F06
SmartMedia card detect. This input is asserted
when SmartMedia cards are inserted.
I LVCI1 PU2 VCC
SM_CE H07
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 SW2 VCC
SM_CLE J07
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.
O TTLO2 SW2 VCC
SM_D7
SM_D6
SM_D5
SM_D4
SM_D3
SM_D2
SM_D1
SM_D0
J02
J01
J06
H03
H05
G03
G02
G01
SmartMedia data terminals. These signals pass
data to and from the SmartMedia, and functions
as specified in the SmartMedia specifications.
I/O TTLI2 TTLO2 SW2 VCC
SM_EL_WP G05 SmartMedia electrical write protect. O TTLO2 SW2 VCC
SM_PHYS_WP K02
SmartMedia physical write protect. This input
comes from the write protect tab of the
SmartMedia card.
I PCII5 PCIO5 SW3
SM_RE J05
SmartMedia read enable. This signal functions as
specified in the SmartMedia specification, and is
used to latch a read transfer from the card.
O TTLO2 SW2 VCC
SM_R/B K01
SmartMedia read/busy. This signal functions as
specified in the SmartMedia specification, and is
used to pace data transfers to the card.
I PCII5 PCIO5 SW3 VCC
SM_WE F03
SmartMedia write enable. This signal functions as
specified in the SmartMedia specification, and is
used to latch a write transfer to the card.
O TTLO2 SW2 VCC