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参数资料
型号： P87C380
厂商： NXP SEMICONDUCTORS
元件分类： 微控制器/微处理器
英文描述： Microcontrollers for monitors with DDC interface, auto-sync detection and sync proc(带DDC接口，同步监测和同步处理的监视器微控制器)
中文描述： 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PDIP42
封装： 0.600 INCH, PLASTIC, SOT-270-1, SDIP-42
文件页数： 53/84页
文件大小： 420K
代理商： P87C380
1997 Dec 12
53
Philips Semiconductors
Product specification
Microcontrollers for monitors with DDC
interface, auto-sync detection and sync proc.
P83Cx80; P87C380
19.1.5
H
ORIZONTAL FREE RUNNING
F
REQUENCY
/P
ERIOD BYTE
R
EGISTER
(HFP)
Table 51
Horizontal free running Frequency/Period Register byte Register (SFR address F6H)
Table 52
Description of HFP bits
19.1.6
H
ORIZONTAL FREE RUNNING
F
REQUENCY
/P
ERIOD AND
P
ULSE
W
IDTH
R
EGISTER
(HFPOPW)
Table 53
Horizontal free running Frequency/Period and Pulse Width Register (SFR address F7H)
Table 54
Description of HFPOPW bits
19.1.7
V
ERTICAL FREE RUNNING
F
REQUENCY
/P
ERIOD BYTE
R
EGISTER
(VFP)
Table 55
Vertical free running Frequency/Period byte Register (SFR address F9H)
Table 56
Description of VFP bits
7
6
5
4
3
2
1
0
HFP9
HFP8
HFP7
HFP6
HFP5
HFP4
HFP3
HFP2
BIT
SYMBOL
DESCRIPTION
7 to 0
HFP9 to HFP2
Indicate the upper byte of the 10 bits for programming the free running
HSYNC output pulse.
7
6
5
4
3
2
1
0
VSEL
HFP1
HFP0
HOPW4
HOPW3
HOPW2
HOPW1
HOPW0
BIT
SYMBOL
DESCRIPTION
7
VSEL
Indicates whether the internal vertical sync is coming from the external
VSYNC input pin (VSYNC
in
/OE) or separated from the composite signal.
If VSEL = 0, vertical sync coming from the external VSYNC input pin.
If VSEL = 1, vertical sync separated from the composite signal.
Indicate the lower two of the 10 bits for programming the free running
horizontal output pulse.
Indicate the horizontal output pulse width.
6 to 5
HFP1 to HFP0
4 to 0
HOPW4 to HOPW0
7
6
5
4
3
2
1
0
VFP9
VFP8
VFP7
VFP6
VFP5
VFP4
VFP3
VFP2
BIT
SYMBOL
DESCRIPTION
7 to 0
VFP9 to VFP2
Indicate the upper byte of the 10 bits for programming the free running
vertical output pulse.
相关PDF资料
PDF描述
P83C880 Microcontrollers for monitors with DDC interface, auto-sync detection and sync proc(带DDC接口，同步监测和同步处理的监视器微控制器)
P83C180 Microcontrollers for monitors with DDC interface, auto-sync detection and sync proc(带DDC接口，同步监测和同步处理的监视器微控制器)
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P87C453EBL 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller
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