PIN DESIGNATIONS
This section identifies the pins of the ÉlanSC400 and
ÉlanSC410 microcontrollers and lists the signals asso-
ciated with each pin.
Several different tables are included in this section.
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The Pin Designations (Pin Number)—ÉlanSC400
ÉlanSC400 microcontroller signals sorted by pin
number.
The Pin Designations (Pin Number)—ÉlanSC410
ÉlanSC410 microcontroller signals sorted by pin
number.
Along with the Connection Diagram on page 24,
these tables can be used to associate the complete
pin name (including all multiplexed functions) with
the physical pin on the BGA package.
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The Pin Designations (Pin Name)—ÉlanSC400
ÉlanSC400 microcontroller signals sorted in
alphabetical order.
The Pin Designations (Pin Name)—ÉlanSC410
ÉlanSC410 microcontroller signals sorted in
alphabetical order.
All multiplexed signals are included in these lists.
Note that these tables should not be used to
determine primary and secondary functions for
multiplexed pins because the ordering was
changed to alphabetize every function. Please refer
to the Pin Designations (Pin Number) table or the
Pin State tables for the definitive listing of primary
and secondary functions in the correct order for
each pin.
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The Pin State tables beginning on page 42, which
group pins alphabetically by function, show pin
states during reset, normal operation, and Suspend
mode, along with output drive strength, maximum
load, supply source, and power-down groups.
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The Signal Description table beginning on page 62
includes complete pin descriptions in alphabetical
order by function.
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The table beginning on page 70 clarifies the
configuration options for those pins having multiple
functions.
Pin Naming
The
Signal Name
column in the Pin Designation tables
beginning on page 26 and in the Pin State tables be-
ginning on page 40 is decoded as follows:
NAME1/NAME2 {NAME3} [NAME4] [[NAME5]]
NAME1
This is the only function for the pin.
NAME1/NAME2
The slash separates two functions that are available on
the pin at the same time (i.e., at different times in the
same design the pin is used for different functions).
{NAME3}
The name in braces is the pin function during a hard-
ware reset.
[NAME4]
The name in square brackets is the alternative function
for the pin, selected by firmware configuration. Only
one function is available for each configuration.
[[NAME5]]
The name inside double square brackets is the
alternate function for the pin, selected by a hardware
configuration pin state at power-on reset. This does not
apply to [[BNDSCN_TCK]], [[BNDSCN_TMS]],
[[BNDSCN_TDI]], and [[BNDSCN_TDO]]. These four
alternate functions are enabled by the BNDSCN_EN
signal. Only one function is available for each
configuration.
PIN CHANGES FOR THE ÉlanSC410
MICROCONTROLLER
The following signals supported on the ÉlanSC400
microcontroller are not available on the ÉlanSC410
microcontroller.
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Configuration signal: CFG2
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PC Card controller signals: MCEL_A, MCEL_B,
MCEH_A, MCEH_B, RST_A, RST_B, REG_A,
REG_B, CD_A, CD_B, CD_A2, RDY_A, RDY_B,
BVD1_A, BVD1_B, BVD2_A, BVD2_B, WP_A,
WP_B, WAIT_AB, OE, WE, ICDIR, PCMA_VCC,
PCMA_VPP1, PCMA_VPP2, PCMB_VCC,
PCMB_VPP1, PCMB_VPP2
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Graphics controller signals: LCDD7–LCDD0, M,
LC, SCK, FRM, LVEE, LVDD
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Loop filter signal: LF_VID
Élan™SC400 and ÉlanSC410 Microcontrollers Data Sheet
25
AMD [ ADVANCED MICRO DEVICES ]
