BU21025GUL Datasheet, PDF (6/19 Pages) Rohm – 4-wire Resistive Touch Screen Controller

BU21025GUL
Datasheet
OPERAND
TYPE
0
1
2
Table 4.Operands of Each Type
O3
O2
C1
X
PD
M
L1
L0
MAF
X
X
X
C0
X
PU90
X
Operand Type 0
O3 : X
Don’t care
O2 : PD
Power down setting.
0 : The analog blocks off and touch detection is enable automatically after A/D conversion is finished.
1 : The analog blocks keep measuring state after A/D conversion is finished.
O1 : M
A/D comversion mode setting.
0 : The resolution of A/D conversion is 12-bit. The Conversion clock frequency is 1MHz.
1 : The resolution of A/D conversion is 8-bit. The conversion clock frequency is 2MHz
O0 : X
Don’t care
Operand Type 1
O3 -2: L1-0
Fixed. Must write “00”.
O1 : MAF
Median Average Filter (MAF) Setting
0 : MAF is enabled (default).
1 : MAF is disabled.
O0 : PU90
pull-up resistor Setting.
0 : 50 kohm (default).
1 : 90 kohm
Operand Type 2
O3 -0: X
Don’t care
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
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TSZ02201-0Y2Y0F300050-1-2
7.AUG.2012 Rev.002