MC68HC705BD3 FREESCALE [Freescale Semiconductor, Inc], MC68HC705BD3 Datasheet - Page 72

• Manufacturer Part Number: MC68HC705BD3
• Description: High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

8
8-12
Y
Separated sync
Set Normal mode
HSYNC too high
Read registers
Set SOUT=1
HOVER=1?
VSIN=1?
B
N
N
Y
Composite sync
Set Normal mode
A
Figure 8-6 Typical Monitor System Operation
SYNC SIGNAL PROCESSOR
Y
Y
No HSYNC
Set Standby mode
Clear 1st_time
Init VSIN=0
Set VSIN=1
VDET=0?
HDET=1?
VDET=0?
HDET=1?
N
N
N
N
Y
Y
Set 1st_time=1
Clear VSIN=0
B
A
Y
No HSYNC signal
Set Standby mode
No VSYNC
Set Suspend mode
Set VSIN=1
VDET=0?
HDET=1?
N
N
Y
MC68HC05BD3
Y
Y
Clear VSIN=0
1st_time=0?
No VSYNC
No HSYNC
Set Off mode
HDET=1?
N
N
TPG