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.

TYPE

PD

RAIL

PARTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MC_PWR_CTRL_0

F01

 

 

 

 

 

 

Power switch or

 

Media card power control for flash media sockets.

O

 

LVCO1

 

 

FET to turn power

 

MC_PWR_CTRL_1

F02

 

 

 

 

 

 

 

 

 

 

on to FM socket

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SmartMedia address latch enable. This signal

 

 

 

 

 

 

 

SM_ALE

J03

functions as specified in the SmartMedia

O

 

TTLO2

SW2

VCC

 

 

specification, and is used to latch addresses

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

passed over SM_D7−SM_D0.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SmartMedia card detect. This input is asserted

 

 

 

 

 

 

 

SM_CD

F06

I

LVCI1

 

PU2

VCC

 

 

when SmartMedia cards are inserted.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SmartMedia card enable. This signal functions as

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

specified in the SmartMedia specification, and is

 

 

 

 

 

 

 

SM_CE

H07

O

 

TTLO2

SW2

VCC

 

 

used to enable the media for a pending

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

transaction.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SmartMedia command latch enable. This signal

 

 

 

 

 

 

 

SM_CLE

J07

functions as specified in the SmartMedia

O

 

TTLO2

SW2

VCC

 

 

specification, and is used to latch commands

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

passed over SM_D7−SM_D0.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SM_D7

J02

 

 

 

 

 

 

 

 

SM_D6

J01

 

 

 

 

 

 

 

 

SM_D5

J06

 

 

 

 

 

 

 

 

SM_D4

H03

SmartMedia data terminals. These signals pass

 

 

 

 

 

 

 

data to and from the SmartMedia, and functions

I/O

TTLI2

TTLO2

SW2

VCC

 

 

SM_D3

H05

 

 

as specified in the SmartMedia specifications.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SM_D2

G03

 

 

 

 

 

 

 

 

SM_D1

G02

 

 

 

 

 

 

 

 

SM_D0

G01

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G05

SmartMedia electrical write protect.

O

 

TTLO2

SW2

VCC

 

 

SM_EL_WP

 

 

 

 

 

 

 

 

 

 

 

 

 

SmartMedia physical write protect. This input

 

 

 

 

 

 

 

SM_PHYS_WP

 

K02

comes from the write protect tab of the

I

PCII5

PCIO5

SW3

 

 

 

 

 

 

 

 

 

 

 

SmartMedia card.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SmartMedia read enable. This signal functions as

 

 

 

 

 

 

 

SM_RE

 

 

 

J05

specified in the SmartMedia specification, and is

O

 

TTLO2

SW2

VCC

 

 

 

 

 

 

 

 

 

 

used to latch a read transfer from the card.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SmartMedia read/busy. This signal functions as

 

 

 

 

 

 

 

SM_R/B

 

K01

specified in the SmartMedia specification, and is

I

PCII5

PCIO5

SW3

VCC

 

 

 

 

 

 

 

 

 

 

used to pace data transfers to the card.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SmartMedia write enable. This signal functions as

 

 

 

 

 

 

 

SM_WE

 

F03

specified in the SmartMedia specification, and is

O

 

TTLO2

SW2

VCC

 

 

 

 

 

 

 

 

 

 

used to latch a write transfer to the card.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2−28

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Texas Instruments PCI7621, PCI7411, PCI7611, PCI7421 manual 18. Smart Media/XD Terminals, 28