Z90251 ZILOG [Zilog, Inc.], Z90251 Datasheet - Page 52

• Manufacturer Part Number: Z90251
• Description: eZVision 200 Television Controllers with OSD
• Manufacturer: ZILOG [Zilog, Inc.]

Table 23 VRAM Structure and Memory Map (Continued)
Hardware processes the entire 12 bits of data at the same time it processes the
OSD.
The Color Palette Selection Bits (10-8) are decoded as described in Table 24.
Character Code Data Bit[11] ,
Character Color C[2:0]
Row 6 D[11:8]
Row 7 D[11:8]
Row 8 D[11:8]
Row 9 D[11:8]
FEC1h
FED8h
FEE1h
FEF8h
FF01h
FF18h
FF21h
FF38h
32 KB Television Controller with OSD
Character Code Data Bit[7:0]
Row 6 Video RAM buffer
Row 7 Video RAM buffer
Row 8 Video RAM buffer
Row 9 Video RAM buffer
PS001301-0800
FCC0h
FCC1h
FCD8h
FCE0h
FCE1h
FCF8h
FD00h
FD01h
FD18h
FD20h
FD21h
FD38h
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