參數(shù)資料
型號(hào)： AK4707
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： AV SCART Switch
中文描述： 影音SCART開關(guān)
文件頁(yè)數(shù)： 25/42頁(yè)
文件大小： 418K
代理商： AK4707
ASAHI KASEI
[AK4707]
MS0551-E-00
2006/10
- 25 -
INT Function and Mask Options (09H: D3-D1)
Changes of the 08H status can be monitored via the INT pin. The INT pin is the open drain output and goes “L” for 2
μ
s
(typ.) when the status of 08H is changed. This pin should be connected to VD (typ. 5V) through 10kohm resistor.
MTV bit, MVC bit, MCOMN bit, MFVCR bit and MSVCR bit control the reflection of the status change of these
monitors onto the INT pin from report to prevent to masks each monitor.
AK4707
R=10k
INT
VD
uP
Figure 6. INT pin
MVC: VCMON Mask. Refer Table 18
MTV: TVMON Mask. Refer Table 17
MCOMN: Refer Table 16
AUTO
(00H D3)
0
0
0
0
1
1
Note 20. When the STBY bit = “0”, the TV Monitor Mask function is enabled.
Note 21. When AUTO bit = “1”, TVMON does not change.
Table 17. TV Monitor Mask
TVMON
(08H D4)
No Change
No Change
Change
Change
No Change
No Change
MTV
(09H D4)
0
1
0
1
0
1
INT
Hi-Z
Hi-Z
Generates “L” Pulse
Hi-Z
Hi-Z
Hi-Z
AUTO
(00H D3)
0
0
0
0
1
1
1
1
Note 22. When the STBY bit = “0”, the VCR Monitor Mask function is enabled.
Table 18. VCR Monitor Mask
VCMON
(08H D3)
No Change
No Change
Change
Change
No Change
No Change
Change
Change
MVC
(09H D3)
0
1
0
1
0
1
0
1
INT
Hi-Z
Hi-Z
Generates “L” Pulse
Hi-Z
Hi-Z
Hi-Z
Generates “L” Pulse
Generates “L” Pulse
MFVCR: FVCR Monitor mask.
0: Change of FVCR is reflected to INT pin. (default)
1: Change of FVCR is NOT reflected to INT pin.
MSVCR: SVCR1-0 Monitor mask
0: Change of SVCR1-0 is reflected to INT pin. (default)
1: Change of SVCR1-0 is NOT reflected to INT pin.
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