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MMC2107 Datasheet, PDF (48/618 Pages) – | |||
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Freescale Semiconductor, Inc.
General Description
⢠General-purpose input/output (GPIO):
â Up to 72 bits of GPIO
â Coherent 32-bit control
â Bit manipulation supported via set/clear functions
â Unused peripheral pins may be used as extra GPIO.
â Reduced drive control
⢠Mâ¢CORE to IPbus interface:
â Complete interfacing between the Mâ¢CORE bus and the IPbus
peripheral bus
â Minimum of three clocks for peripheral bus access
â Data alignment and data width conversion between the
Mâ¢CORE 32-bit data bus and the IPbus peripheral data buses
⢠External interface:
â Provides for direct support of asynchronous random-access
memory (RAM), read-only memory (ROM), and FLASH
â Support interfacing to 16-bit and 32-bit data buses
â 32-bit external bidirectional data bus
â 23-bit address bus
â Four chip selects
â Byte/write enables
â Ability to boot from internal or external memories
â Internal bus activity is visible via show-cycle mode
â Special chip selects support replacement of GPIO with
external logic (port replacement logic)
â Emulation of internal page mode FLASH support
⢠Joint Test Action Group (JTAG) support for system-level board
testing
1.4 Block Diagram
The basic structure of the MMC2107 is shown in Figure 1-1.
Technical Data
48
General Description
For More Information On This Product,
Go to: www.freescale.com
MMC2107 â Rev. 2.0
MOTOROLA
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