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ELANSC300-33KI Datasheet

  • ELANSC300-33KI

  • Highly Integrated, Low-Power, 32-Bit Microcontroller

  • 1344.13KB

  • 139页

  • AMD

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P R E L I M I N A R Y
脡LANSC300 MICROCONTROLLER PIN DESIGNATIONS
This section, beginning with the Connection Diagram
on the preceding page, identifies the pins of the
脡lanSC300 microcontroller and lists the signals associ-
ated with each pin. The table beginning on page 15
lists the pins sorted by pin number; the table beginning
on page 17 lists the pins sorted by pin name along with
the corresponding pin number, functional grouping, Pin
State table number, and the page number where a de-
scription of the pin is located. Tables 2鈥?1, beginning
on page 25, group these signals according to function.
The Signal Name column in the pin designation table
(sorted by pin number), and in Tables 2鈥?1, is decoded
as follows:
NAME3 -
This is a tertiary pin function that must be en-
abled specifically by firmware. As an example, for pins
DACK2[TCK], DRQ2[TDO], AEN[TDI], and TC[TMS],
the NAME3 function is selected by the JTAGEN pin
being asserted High (JTAG ENABLE).
NAME4 -
Designates the pin function when the
脡lanSC300 microcontroller has been configured, at re-
set, for the Local Bus mode of operation.
NAME5 -
Designates the pin function when the
脡lanSC300 microcontroller has been configured, at re-
set, for the Maximum ISA mode of operation.
RSVD -
Pins marked with this designator are required
to remain unconnected.
PULLUP -
Needs external pull-up resistor.
PULLDN -
Needs external pull-down resistor.
NAME1 -
This is the pin function when the 脡lanSC300
microcontroller has been configured, at reset, for the
internal LCD Controller mode of operation. If the pin
only has one function regardless of the mode, NAME1
is the only name given.
NAME2 -
This is the secondary pin function (by default)
when the 脡lanSC300 microcontroller has been config-
ured, at reset, for the internal LCD Controller mode of
operation. If the pin always has two functions regard-
less of the mode, NAME1 followed by NAME2 are the
only names given.
The Signal Name column in the pin designation table
(sorted by pin name), beginning on page 17, contains
an alphabetical listing of all pin names, followed by
their corresponding alternate pin names in the applica-
ble format from those listed here:
NAME1 / NAME2 [NAME3] (NAME4 / NAME5)
NAME1 / NAME2 [NAME3] (NAME4 / NAME5)
NAME2 / NAME1 [NAME3] (NAME4 / NAME5)
[NAME3] (NAME4 / NAME5) NAME1 / NAME2
(NAME4 / NAME5) NAME1 / NAME2 [NAME3]
(NAME5 / NAME4) NAME1 / NAME2 [NAME3]
For more information about how pins are shared and
which functions are available in each bus mode, see
鈥淎lternate Pin Functions鈥?on page 68.
14
脡lan鈩C300 Microcontroller Data Sheet

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