MMC2107 Datasheet, PDF (507/618 Pages) –

Freescale Semiconductor, Inc.
External Bus Interface Module (EBI)
Signal Descriptions
19.3.7 Read/Write (R/W)
The read/write (R/W) output signal indicates the direction of the data
transfer on the bus. A logic 1 indicates a read from a slave device and a
logic 0 indicates a write to a slave device.
19.3.8 Address Bus (A[22:0])
The address bus (A[22:0]) output signals provide the address for the
current bus transfer.
19.3.9 Enable Byte (EB[3:0])
The enable byte (EB[3:0]) output signals indicate which byte of data is
valid during external cycles.
19.3.10 Chip Selects (CS[3:0])
The chip selects (CS[3:0]) output signals select external devices for
external bus transactions.
19.3.11 Output Enable (OE)
The output enable (OE) signal indicates when an external device can
drive data during external read cycles.
19.3.12 Transfer Size (TSIZ[1:0])
TSIZ[1:0] provides an indication of the M•CORE transfer size.
19.3.13 Processor Status (PSTAT[3:0])
PSTAT[3:0] provides an indication of the M•CORE processor status.
MMC2107 – Rev. 2.0
MOTOROLA
External Bus Interface Module (EBI)
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Technical Data
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