AK4186 Datasheet, PDF (18/33 Pages) Asahi Kasei Microsystems – Low Power Touch Screen Controller with I2C Interface

[AK4186]
■ Data Register
1. Sequence Mode Data Register
The AK4186 starts A/D conversion in sequence mode by setting the COUNT, SEQM2-0, INTERVAL2-0 bits of the
register address 02H. The AK4186 makes six or ten measurements by setting the COUNT bit. The results are used to
calculate the average value, discarding the minimum and maximum values, and the result sets the data register of
sequence mode. The AK4186 registers data from address 11H in order of setting the SEQM2-0 bits. The master can
read the ADC data by the register read operation after confirming the PENIRQN pin turns to “H” or a register status
SEQST3-0 = 02H (Data Available). The data register is Read Clear so that data will be deleted once it is read. Do not
read data during a sequential measurement.
Addr
10H
11H
12H
13H
14H
15H
16H
17H
18H
Register Name
Status
Sequence Data 1H
Sequence Data 1L
Sequence Data 2H
Sequence Data 2L
Sequence Data 3H
Sequence Data 3L
Sequence Data 4H
Sequence Data 4L
D7
D6
D5
D4
D3
CHST3 CHST2 CHST1 CHST0 SEQST3
D1T11
D1T10
D1T9
D1T8
D1T7
D1T3
D1T2
D1T1
D1T0
0
D2T11
D2T10
D2T9
D2T8
D2T7
D2T3
D2T2
D2T1
D2T0
0
D3T11
D3T10
D3T9
D3T8
D3T7
D3T3
D3T2
D3T1
D3T0
0
D4T11
D4T10
D4T9
D4T8
D4T7
D4T3
D4T2
D4T1
D4T0
0
Table 10. Data Register for Sequence Mode (Read Only)
D2
SEQST2
D1T6
0
D2T6
0
D3T6
0
D4T6
0
D1
SEQST1
D1T5
0
D2T5
0
D3T5
0
D4T5
0
D0
SEQST0
D1T4
0
D2T4
0
D3T4
0
D4T4
0
BIT
D7-D4
D3-D0
Name
CHST3-0
SEQST3-0
Description
Last Measurement Channel for Single Mode
0011: AIN
0100: X-axis
0101: Y-axis
0110: Z1
0111: Z2
others: Reserved
Status Bits for Sequence Mode
0000: Not Busy
0001: Sequence Busy
0010: Data Available
others: Reserved
Table 11. Status Register description (Read Only)
MS1068-E-04
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2011/03