mc9328mx1 Freescale Semiconductor, Inc, mc9328mx1 Datasheet - Page 59

• Manufacturer Part Number: mc9328mx1
• Description: Arm9 Microprocessor
• Manufacturer: Freescale Semiconductor, Inc

4.4.4
4.5
The specifications for the pen ADC are shown in
Freescale Semiconductor
LD[15:0]
1
2
3
4
5
Symbol
Pen ADC Specifications
HSYN
Maximum frequency of LCDC_CLK is 48 MHz, which is controlled by Peripheral Clock Divider Register.
Maximum frequency of SCLK is HCLK / 5, otherwise LD output will be wrong.
VSYN, HSYN and SCLK can be programmed as active high or active low. In the above timing diagram, all
these 3 signals are active high.
Tpix is the pixel clock period which equals LCDC_CLK period * (PCD + 1).
Ts is the shift clock period. Ts = Tpix * (panel data bus width).
VSYN
SCLK
Non-TFT Panel Timing
T1
T2
T3
T4
HSYN to VSYN delay
HSYN pulse width
VSYN to SCLK
SCLK to HSYN
Parameter
T2
1
Full Range Resolution
Non-Linearity Error
Accuracy
Table 17. Non TFT Panel Timing Diagram
Table 18. Pen ADC System Performance
Tested under input = 0~1.8V at 25°C
Figure 33. Non-TFT Panel Timing
3
MC9328MX1 Technical Data, Rev. 7
T1
1
T3
1
Minimum Value
Allowed Register
Table 18
1
0
0
–
0
XMAX
through
1, 2
Functional Description and Application Information
13 bits
4 bits
9 bits
Table
Ts
20.
Actual Value
0 ≤ T3 ≤ Ts
HWIDTH+1
HWAIT2+2
HWAIT1+1
T4
5
T2
Tpix
Unit
Tpix
Tpix
–
T1
4
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