BU21049GUL Datasheet, PDF (19/26 Pages) Rohm – 4-wire Resistive Touch Screen Controller

BU21049GUL
PAGE=0, ADDR=0x2 : CFR2
D7
D6
D5
D4
D3
D2
D1
D0
INTVL_TIME[3:0]
TIME_ST_ADC[3:0]
Bits D7-D4: INTVL_TIME
This is waiting time setting between conversion be completed and start next conversion.
(Only usable setting at conversion function=0x0.)
In the using case, set value as four or more.
INTVL_TIME setting table
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
※Above showed time are calculated with the oscillating frequency of the internal OSC is 8MHz.
Bit D3-D0 : TIME_ST_ADC
This is waiting time setting between apply voltage to panel and starting A/D conversion.
TIME_ST_ADC setting table
value
time
0x0
8us
0x1
20us
0x2
30us
0x3
40us
0x4
50us
0x5
60us
0x6
70us
0x7
80us
0x8
90us
0x9
100us
0xA
200us
0xB
250us
0xC
300us
0xD
360us
0xE
400us
0xF
500us
※Above showed time are calculated with the oscillating frequency of the internal OSC is 8MHz.
Datasheet
www.rohm.co
© 2011 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
19/23
TSZ02201-0Y1Y0F300010-1-2
31.JAN.2012 Rev.001