BU21028FV-M Datasheet, PDF (24/36 Pages) Rohm – 4-wire Resistive Touch Screen Controller

BU21028FV-M
Table 14. CFR2 Register (PAGE=0, ADDR=0x2, Reset value=0x04)
D7
D6
D5
D4
D3
D2
D1
D0
INTVL_TIME[3:0]
TIME_ST_ADC[3:0]
Bits D7-D4: INTVL_TIME
This sets the waiting time between completion of conversion and start of next conversion.
(Only usable setting at conversion function=0x0.)
If used, set value as four or more.
Table 15. INTVL_TIME setting
value
time
0x0～0x3 Reserved
0x4
0.256ms
0x5
1.024ms
0x6
2.048ms
0x7
4.096ms
0x8
5.120ms
0x9
8.912ms
0xA 10.240ms
0xB 15.360ms
0xC～0xF 20.480ms
※Times shown above are calculated with oscillating frequency of internal OSC at 8MHz.
Bit D3-D0 : TIME_ST_ADC
This sets the waiting time between application of voltage to panel and start of A/D conversion.
Table 16. TIME_ST_ADC Setting
value
time
EX_TIME_ST=0 EX_TIME_ST=1
0x0
10us
0.5ms
0x1
20us
0.6ms
0x2
30us
0.7ms
0x3
40us
0.8ms
0x4
50us
0.9ms
0x5
60us
1.0ms
0x6
70us
1.5ms
0x7
80us
2.5ms
0x8
90us
3.0ms
0x9
100us
4.0ms
0xA
200us
5.0ms
0xB
250us
6.0ms
0xC
300us
7.0ms
0xD
350us
8.0ms
0xE
400us
9.0ms
0xF
450us
10.0ms
※Times shown above are calculated with oscillating frequency of internal OSC at 8MHz.
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TSZ02201-0L5L0F300720-1-2
27.May.2016 Rev.002