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AOC P/N : 41A50-144 User Manual

Page 55

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54

Table 13. gmZAN1 TFT Panel Interface Timing

Signal Name

Min

Typical

Max

Unit

Period t1

0

16.67

2048
-

lines
ms

Frequency

60

-

Hz

Front porch

t2

0

2048

lines

Back porch

t3

0

2048

lines

Pulse width

t4

0

2048

lines

PdispE t5

0

Panel

height

2048

lines

Disp. Start from VS t6

0

2048

lines

PVS set up tp PHS

t18

1

2048

PCLK *1

PVS

PVS hold from PHS t19

1

2048

PCLK *1

Period

t7

0

2048 [1024

PCLK *1

Front porch

t8

0

2048

PCLK *1

Back porch

t9

0

2048

PCLK *1

Pulse width

t10

0

2048

PCLK *1

PdispE

t11

0

Panel width

2048 [1024]

PCLK *1

PHS

Disp. Start fom HS t12

0

2048

PCLK *1

Frequency t13

120

[60]

MHz

Clock (H) *2

t14

DCLK/2-3 [DCLK-3]

DCLK/2-2 [DCLK-2] ns

Clock (L) *2

t15

DCLK/2-3 [DCLK-3]

DCLK/2-2 [DCLK-2] ns

PCLKA,
PCLKB*4

Type

-

One

pxl/clock

[two pxl/clock]

-

Set up *3

t16

DCLK/2-5 [DCLK-5]

DCLK/2-2 [DCLK-2] ns

Hold *3

t17

DCLK/2-5 [DCLK-5]

DCLK/2-2 [DCLK-2] ns

Data

width

3 bits

18 bits [36 bits] 24 bits [48 bits]

bits/pixel

NOTE: Numbers in [ ] are for two pixels/clock mode.
NOTE: The drive current of the panel interface signals is programmable as shown in Table 1. The drive current is to be
programmed through the API upon chip initialization. Output current is programmable from 2 mA to 20mA in increments of 2 mA.
Drive strength should be programmed to match the load presented by the cable and input of the panel. Values shown are based on a
loading of 20pF and a drive strength of 8 mA.
NOTE *1: The PCLK is the panel shift clock.
NOTE *2: The DCLK stands for Destination Clock (DCLK) period. Is equal to:

-PCLK period in one pixel/clock mode,

-twice the PCLK period in two pixels/clock mode.

NOTE *3: The setup/hold time spec. for PCLK also applies to PHS and PdispE. The setup time (t16) and the hold time (t17) listed

in this table are for the case in which no clock-to-data skew is added. The PVS/PHS/PdispE/Pdata signals are asserted on
the rising edge of the PCLK. The polarity of the PCLK and its skew are programmable. Clock to Data skew can be
adjusted in sixteen 800-ps increments. In combination with the PCLK polarity inversion, the clock-to-data phase can be
adjusted in total of 31 steps.

NOTE *4: The polarity of the PCLKA and the PCLKB are independently programmable.


The micro controller must have all the timing parameters of the panel used for the monitor. The parameters are to be
stored in a non-volatile memory. As can be seen from this table, the wide range of timing programmability of the
gmZAN1 panel interface makes it possible to support various kinds of panels known today: