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FIN224ACGFX Datasheet(Hoja de datos) 10 Page - Fairchild Semiconductor

No. de Pieza. FIN224ACGFX
Descripción  USerDes 22-Bit Bi-Directional Serializer/Deserializer
Descarga  23 Pages
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Fabricante  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
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 10 page
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©2006 Fairchild Semiconductor Corporation
10
www.fairchildsemi.com
FIN224AC Rev. 1.0.7
Application Mode Diagrams Unidirectional Data Transfer
Figure 14 shows a half duplex connectivity diagram with
FIN224AC, which has similar functionality as FIN24AC.
This connectivity allows for two unidirectional data
streams to be sent across a single pair of SerDes. Data
is sent on a frame-by-frame basis. For this mode of oper-
ation, there needs to be some synchronization between
when the camera sends its data frame and when the
LCD sends its data. One option is to have the LCD send
data during the camera blanking period. External logic is
needed for this mode of operation.
Devices alternate frames of data controlled by a direction
control and a direction sense. When DIRI, on the right-
hand FIN224AC is HIGH, data is sent from the camera to
the camera interface at the base. When DIRI, on the
right-hand FIN224AC, goes LOW, data is sent from the
baseband process to the LCD. The direction is then
changed at DIRO on the right-hand FIN224AC indicating
to the left-hand FIN224AC to change direction. Data is
sent from the base LCD unit to the LCD. The DIRO pin
on the left-hand FIN24AC is used to indicate to the base
control unit that the signals are changing direction and
the LCD is available to be sent data. DIRI on the right-
hand FIN224AC could typically use a timing reference
signal, such as VSYNC from the camera interface, to
indicate direction change. A derivative of this signal may
be required to make sure that no data is lost in the final
data transfer.
Figure 12. FIN224AC RGB
2.8V
2.8V
VDDP
2.8V
1.8V
LCD_VSYNC_S
LCD14_M
LCD10_M
LCD2_M
LCD6_M
LCD8_M
LCD12_M
LCD4_M
LCD1_M
LCD15_M
LCD5_M
LCD11_M
LCD3_M
LCD9_M
LCD7_M
LCD13_M
PIXCLK_M
LCD_HSYNC_M
LCD_VSYNC_M
LCD17_M
LCD0_S
LCD1_S
LCD0_M
LCD2_S
LCD3_S
LCD4_S
LCD5_S
PIXCLK_S
GPIO_MODE
LCD6_S
LCD7_S
LCD8_S
LCD9_S
LCD10_S
LCD11_S
LCD12_S
LCD13_S
LCD14_S
LCD15_S
LCD_HSYNC_S
LCD16_S
LCD17_S
LCD16_M
LCD_ENABLE_M
LCD_ENABLE_S
µSerDes DeSerializer
LCD
Controller
Out
Assumptions:
1) 18-bit Unidirectional RGB Application
2) Mode 3 Operation (10 Mhz to 20Mhz CKREF)
LCD
Display
In
3) VDDP = (1.65V to 3.6V)
µSerDes Serializer
C11
2.2uF
C11
2.2µF 1nF
C10
1nF
C10
TP5
TP5
.01uF
C3
.01µF
C3
1nF
C6
1nF
C6
U22
FIN224AC
U22
FIN224AC
DP9
A1
DP7
A2
DP5
A3
DP3
A4
DP1
A5
CKREF
A6
DP11
B1
DP10
B2
DP6
B3
DP2
B4
STROBE
B5
DIRO
B6
CKP
C1
DP12
C2
DP8
C3
DP4
C4
CKSO+
C5
CKSO-
C6
DP13
D1
DP14
D2
VDDP
D3
DSO-/DSI+
D5
DSO+/DSI-
D6
CKSI-
E6
CKSI+
E5
VDDS
E4
DP16
E2
DP15
E1
DIRI
F6
S2
F5
VDDA
F4
DP21
F3
DP18
F2
DP17
F1
S1
J6
DP24
J5
DP23
J4
DP22
J3
DP20
J2
DP19
J1
TP6
TP6
U20
FIN224AC
U20
FIN224AC
DP9
A1
DP7
A2
DP5
A3
DP3
A4
DP1
A5
CKREF
A6
DP11
B1
DP10
B2
DP6
B3
DP2
B4
STROBE
B5
DIRO
B6
CKP
C1
DP12
C2
DP8
C3
DP4
C4
CKSO+
C5
CKSO-
C6
DP13
D1
DP14
D2
VDDP
D3
DSO-/DSI+
D5
DSO+/DSI-
D6
CKSI-
E6
CKSI+
E5
VDDS
E4
DP16
E2
DP15
E1
DIRI
F6
S2
F5
VDDA
F4
DP21
F3
DP18
F2
DP17
F1
S1
J6
DP24
J5
DP23
J4
DP22
J3
DP20
J2
DP19
J1
.01uF
C12
.01µF
C12




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