am42dl1612d Meet Spansion Inc., am42dl1612d Datasheet - Page 12

• Manufacturer Part Number: am42dl1612d
• Description: 16 Mbit 2 M ? 8-bit/1 M ? 16-bit Cmos And 2 Mbit 128 K ? 16-bit Static Ram Preliminary
• Manufacturer: Meet Spansion Inc.

DEVICE BUS OPERATIONS
This section describes the requirements and use of
the device bus operations, which are initiated through
the internal command register. The command register
itself does not occupy any addressable memory loca-
tion. The r egis ter is a l atch us ed to s tore th e
commands, along with the address and data informa-
tion needed to execute the command. The contents of
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Am42DL16x2D
the register serve as inputs to the internal state ma-
chine. The state machine outputs dictate the function
of the device. Table 1 lists the device bus operations,
the inputs and control levels they require, and the re-
sulting output. The following subsections describe
each of these operations in further detail.
February 6, 2004