Epson S1D13504 Technical Manual page 459

Color graphics lcd/crt controller
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Epson Research and Development
Vancouver Design Center
Note
Note
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 01/02/02
MPC8BUG does not support comments or symbolic equates; these have been added for
clarity.
It is important to note that when the MPC821 comes out of reset, its on-chip caches and
MMU are disabled. If the data cache is enabled, the MMU must be setup so the
S1D13504 memory block is tagged as non-cacheable. This ensures that accesses to the
S1D13504 will occur in proper order, and the MPC821 will not attempt to cache any
data read from or written to the S1D13504 or its display buffer.
Page 21
S1D13504
X19A-G-010-05

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