5.3.2. Signal descriptions

Table 5.5 lists the non-AMBA signals used by the external ROM module.

Table 5.5. External ROM module signals

Signal

Type

Direction

Description

A[13:0]

External address

Input

The external address input

CEN

Chip enable

Input

When LOW, this signal indicates that the chip has been selected and must respond to the current transfer

OEN

Output enable

Input

When LOW, this signal indicates a read transfer, and enables the module to drive data onto Q

Q[7:0]

External data out

Output

The external data bus, driven during read transfers

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