BU21026MUV Datasheet, PDF (10/23 Pages) Rohm – 4-wire Resistive Touch Screen Controller

BU21026MUV
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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TSZ22111 • 15 • 001
10/19
TSZ02201-0L5L0FF00890-1-2
4.Aug.2016 Rev.001