參數(shù)資料
型號: NT6861
廠商: Electronic Theatre Controls, Inc.
英文描述: 8-Bit Microcontroller for Monitor
中文描述: 8位微控制器的監(jiān)控
文件頁數(shù): 37/44頁
文件大小: 455K
代理商: NT6861
NT6861
37
Open
INTV & INTS
Wait Ior
Doing something
Main Program
Interrupt Service Routine
Polling
INTS
DDC2
yes
No
Open
INTA & INTR
Change To
DDC2 Mode
(Auto Switch)
Put Addr.
Into
IIADR Reg.
INTV
Open
INTS & INTD
DDC1
yes
No
Reset EDID
Buffer Index
IIData Into
Change To
DDC1 Mode
MD_CON = 1
No
Return
yes
DDC2 Operate
Over
yes
INTOpen
DDC1
Transfer
yes
yes
No
No
DDC2B
Operation
From EDID
Buffer Index
Data Into
Read One Byte
IData From
To Set EDID
Buffer Index
Write '00'
For rTo IIDAT
INTA
yes
Open
INTA & INTD
ResFrom IIDAT Reg.
To LSB
Write/Read Mode
yes
No
Put First Byte
IIData Into
For releaseing SCL
No
Service
No
From EDID
Buffer Index
IIData Into
yes
yes
yes
yes
No
No
No
No
Need
INTS
Need
INTA
Open
INTA & INTD
Need
Polling
INTD
Write '00'
For releasing SCL
Setting IISTS:
(Recv. Mode)
Setting IISTS:
(Recv. Mode)
DDC2B
Read_Mode
Operation
DDC2B
Operation
Setting IISTS:
TRX = 1
Need
INTV
Set ENDDC = 0
Open
INTS & INTD
Reset EDID
Buffer Index
Need
Polling
INTR
INTR
DDC2 Idle
For 2 Sec.
Return To
Open INTV
No
No
yes
yes
yes
NO
Figure 26. DDC1/2B Software Flow Chart
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