MAX11802EW 查看數據表（PDF） - Maxim Integrated
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产品描述 (功能)
生产厂家
MAX11802EW
Maxim Integrated
MAX11802EW Datasheet PDF : 57 Pages
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Low-Power, Ultra-Small Resistive Touch-Screen
Controllers with I2C/SPI Interface
General Configuration Register (0x01)
NAME
DEFAULT
BIT 7
RT_SEL
1
BIT 6
HOLD_DO
1
BIT 5
PU_IRQ
1
BIT 4
ODN_IRQ
1
BIT 3
MASK_IRQ
0
BIT 2
EDGE_IRQ
0
BIT 1
BIT 0
EDGE_TIME[1:0]
0
0
BIT
NAME
7
RT_SEL
6
HOLD_DO
5
PU_IRQ
4
ODN_IRQ
3
MASK_IRQ
2
EDGE_IRQ
1:0
EDGE_TIME[1:0]
DESCRIPTION
0: 50k touch-detection pullup resistance
1: 100k touch-detection pullup resistance
(panel setting––not to be confused with internal TIRQ pullup)
0: DOUT internal bus holder disabled
1: DOUT internal bus holder enabled
(applicable to SPI version only)
0: Disable IRQ internal pullup resistance
1: Enable IRQ internal pullup resistance
(open-drain mode only: ODN_IRQ also high)
0: TIRQ is CMOS buffered output
1: TIRQ is open-drain nMOS output
0: Enable TIRQ output
1: Mask/disable TIRQ output (force high or high impedance)
0: Use continuous interrupt with direct conversion mode
1: Use edge interrupt with direct conversion mode
TIRQ low time for edge interrupt mode only
00: 4 x (2MHz oscillator clock period) = 2μs
01: 16 x (2MHz oscillator clock period) = 8μs
10: 64 x (2MHz oscillator clock period) = 32μs
11: 128 x (2MHz oscillator clock period) = 128μs
Measurement Resolution Configuration Register (0x02)
NAME
DEFAULT
BIT 7
—
0
BIT 6
—
0
BIT 5
—
0
BIT 4
PWR_SAV
0
BIT 3
RESX
0
BIT 2
RESY
0
BIT 1
RESZ1
0
BIT
NAME
4
PWR_SAV
3:0
RES_
DESCRIPTION
0: Internal ADC runs at normal power
1: Internal ADC runs at reduced power and resolution
This mode does limit the effective ADC resolution:
12-bit conversions may be reduced to 10-bit accuracy
8-bit conversions should not be impacted.
Resolution for X, Y, Z1, or Z2 measurements
0: 12-bit conversion (see the PWR_SAV description in this table)
1: 8-bit conversion
BIT 0
RESZ2
0
48 ______________________________________________________________________________________
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