MC68HC05T16 Datasheet, PDF (88/128 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit

status bit to be cleared is indeed one before writing a zero, and do not write a 0 to a status bit
which is not 1. Otherwise, status bits which are becoming ones will be inadvertently cleared.
VFINTE - VFLBK interrupt enable
1 (set) – Vertical flyback interrupt enabled.
0 (clear) – Vertical flyback interrupt disabled.
MUTE1, MUTE0 - Video mute enable
MUTE1
0
0
1
1
MUTE0
0
1
0
1
Function
No video mute
Mute with black color
Mute with G color
Mute with B color
VFLB - VFLBK status
1 (set) – Vertical flyback (leading edge) signal detected.
0 (clear) – No Vertical flyback signal detected.
RiCF - Row i display status
1 (set) – Row i display has been terminated.
9
0 (clear) – Row i display has been not terminated.
Whenever a row display has been terminated, the corresponding RiCF flag will be set along with
update of CDRC3-CDRC0 field.
MOTOROLA
9-18
ON-SCREEN DISPLAY
TPG
MC68HC05T16