MN5572 Datasheet, PDF (9/28 Pages) Panasonic Semiconductor – Gray Scale Font Engine

I Functional Description (continued)
2. Memory register functions (continued)
2.1 Path (outline) data input port (continued)
• POINT FIFO memory map
width 32 bit
Bank0
Bank1
Bank2
Bank3
MN5572
2.2 Gray-scale data output port (RASTER FIFO)
Memory port used for output of the gray-scale data generated by the MN5572. This port allows 64 double-
word values to be read at one time. If more than 64 double-word values must be read, the read operation must be
split into multiple operations. The RASTER FIFO has a total capacity of 256 double-word values.
• Local 32 and PCI mode
bit 31
0
Gray data
• Local 16 mode
Data is transferred in the order high-order bits first, low-order bits later.
bit 31
16
cycle 1
Upper 16 bits of the gray data
bit 15
0
cycle 2
Lower 16 bits of the gray data
SDF00008BEM
9