FIN324C Datasheet, PDF (11/23 Pages) Fairchild Semiconductor – 24-Bit Ultra-Low Power Serializer Deserializer Supporting Single and Dual Displays

Application Diagrams (Continued)
Baseband
Processor
/RE
/WE
DATA[17:0]
ADDR
/CS0
/CS1
GPIO
/STBY
/RES
CKSEL0
CKSEL1
VDDP1 VDDS/A
C2
E2 F2
VDDP VDDS/A
A4 _STRB0
B4 _STRB1
D4:G6
C4
C3
A3
B3
A2
B2
A1
VDDP1_D3
F3
G3
G2
B1
DP[17:0]
CNTL[0]
CNTL[1]
CNTL[2]
CNTL[3]
CKS+ ^D1
CKS- ^E1
CNTL[4]
CNTL[5]
R/W
M/S
DS+ ^G1
DS- ^F1
PAR/SPI
/STBY
E3
/RES
D2
CKSEL
C1
Module 1
VDDP2 VDDS/A
C2
E2 F2
VDDP VDDS/A
WCLK0 ^A4
WCLK1 ^B4
DP[17:0] ^D4:G6
CNTL[0] ^C4
CNTL[1] ^C3
G1
F1
CKS+ _CNTL[2] ^A3
CKS- _CNTL[3] B3
D1
E1
DS+
DS-
CNTL[4] ^A2 NC
CNTL[5] ^B2 NC
R/W ^A1
M/S ^D3
PAR/SPI ^F3
VDDP2
E3
SLEW ^G3
D2
/RES ^G2
C1
H ^B1
Sub-Display
/RE
/WE
DATA[7:0]
ADDR
/CS0
Main Display
/RE
/WE
DATA[17:0]
ADDR
/CS1
Edge Rate Control Option
SLEW must be connected
to VDDS or GND for low
power.
Notes:
1.
2.
3.
4.
5.
Dual display R/W Intel® interface.
Assumes BGA die on display.
GPIO signal used to select READ or WRITE functionality. Connected to CKSEL and R/W.
Displays selected via the c.hip selects.
Pin numbers for BGA package.
Figure 10. Dual R/W x86-Style Microcontroller Display Interface
Additional Application Information
Flex Cabling: The serial I/O information is transmitted at a high serial rate. Care must be taken implementing this
serial I/O flex cable. The following best practices should be used when developing the flex cabling or Flex PCB.
ƒ Keep all four differential Serial Wires the same length.
ƒ Do not allow noisy signals over or near differential serial wires.
Example: No LVCMOS traces over differential serial wires.
ƒ Use only one ground plane or wire over the differential serial wires. Do not run ground over top and bottom.
ƒ Design goal of 100-ohms differential characteristic impedance.
ƒ Do not place test points on differential serial wires.
ƒ Use differential serial wires a minimum of 2cm away from the antenna.
ƒ For additional applications notes or flex guidelines see your sales rep or contact Fairchild directly.
© 2006 Fairchild Semiconductor Corporation
FIN324C Rev. 1.0.5
11
www.fairchildsemi.com