SAA5520 Datasheet, PDF (12/80 Pages) NXP Semiconductors – Standard TV Microcontrollers with On-Screen Display(OSD)

Philips Semiconductors
Standard TV microcontrollers with
On-Screen Display (OSD)
Preliminary specification
SAA55xx
handbook, full pagewidthMEMORY
PROGRAM ROM
CHARACTER ROM
PACKET 26 ROM
SECURITY BITS SET
USER ROM PROGRAMMING
VERIFY
(ENABLE/DISABLE)
(ENABLE/DISABLE)
ENABLED
ENABLED
ENABLED
ENABLED
ENABLED
ENABLED
MBK955
Fig.6 Security bits for production blank devices.
1999 Oct 27
handbook, halfpage
DATA
MEMORY
FFH
upper 128 bytes
80H
7FH
lower 128 bytes
00H
accessible
by indirect
addressing
only
accessible
by direct
and indirect
addressing
SPECIAL
FUNCTION
REGISTERS
accessible
by direct
addressing
only
MBK956
Fig.7 Internal Data memory.
12