参数资料
型号: TSC2301IZQZR
厂商: TEXAS INSTRUMENTS INC
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA120
封装: GREEN, PLASTIC, VFBGA-120
文件页数: 44/95页
文件大小: 1322K
代理商: TSC2301IZQZR
www.ti.com
t
coordinate +
2.125 ms ) tPVS ) NAVG NBITS
1
conv )
4.4 ms
(6)
TSC2301
SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004
host recognizes the interrupt request. Instead of starting a sequence in the TSC2301, which then reads each
coordinate in turn, the host now must control all aspects of the conversion. An example sequence would be: (a)
PENIRQ goes low when screen is touched. (b) Host writes to TSC2301 to turn on X-drivers. (c) Host waits a
desired delay for panel voltage stabilization. (d) Host writes to TSC2301 to begin X-conversion. After waiting for
the settling time, the host then addresses the TSC2301 again, this time requesting an X coordinate conversion.
The process is then repeated for Y and Z coordinates. The processes are outlined in Figure 58 through
The time needed to convert any single coordinate under host control (not including the time needed to send the
command over the SPI bus) is given by:
49
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