CC-9M-NA37-Z1-B Digi International, CC-9M-NA37-Z1-B Datasheet - Page 36

• Manufacturer Part Number: CC-9M-NA37-Z1-B
• Description: MOD 9M 64MB SDRAM 128MB FLASH 25
• Manufacturer: Digi International
• Series: -r

Specifications of CC-9M-NA37-Z1-B

• Module/board Type: Core Module
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Networking

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Touch screen
interface modes
Reset controller
JTAG
1. Normal conversion mode
Single Conversion Mode is used for General Purpose ADC Conversion. This mode can
be activated by:
2. Separate X/Y position conversion mode is activated as follows:
3. Auto (Sequential) X/Y Position Conversion Mode is activated as follows:
4. Waiting for Interrupt Mode is activated as follows:
5. Standby Mode
Standby Mode is activated when ADCCON [2] is set to '1.'
In this mode, A/D conversion operation is halted and ADCDAT0, ADCDAT1 register
contains the previous converted data.
On the module there is an Analog Devices ADM811SARTZ used. This device monitors
3.3V and has RSTIN# as debounced manual reset input and through a series resistor of
470R produces PWRGOOD as output. The voltage threshold is 2.93V. Reset output
length is typically 240ms.
The standard JTAG signals are provided at the system connector. A JTAG/Multi-ICE
connector has to be provided at the base board for debugging.
The signal DEBUGEN# (CONF0) from the base board to the module is necessary, to
be able to switch on and off a connection between the system reset and the JTAG
reset.
1
2
1
2
1
2
1
2
Set the ADCCON (ADC Control Register), and
Set the read and write to the ADCDAT0 (ADC Data Register 0).
X-Position Mode writes X-Position Conversion Data to ADCDAT0, so Touch
Screen Interface generates the Interrupt source to Interrupt Controller.
Y-Position Mode writes Y-Position Conversion Data to ADCDAT1, so Touch
Screen Interface generates the Interrupt source to Interrupt Controller.
Touch Screen Controller sequentially converts the X-Position or Y-Position
that is touched.
After touch controller writes X-measurement data to ADCDAT0 and writes
Y-measurement data to ADCDAT1, the Touch Screen Interface generates
Interrupt source to Interrupt Controller in Auto Position Conversion Mode.
The Touch Screen Controller generates an interrupt (INT_TC) signal when
the stylus is down. Waiting for Interrupt Mode setting value is
rADCTSC=0xd3; // XP_PU, XP_Dis, XM_Dis, YP_Dis, YM_En.
After the Touch Screen Controller generates interrupt signal (INT_TC), the
user must wait for the interrupt mode to be cleared (XY_PST sets to the No
operation Mode).
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