MAX11803 Maxim Integrated Products, MAX11803 Datasheet - Page 51

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MAX11803

Manufacturer Part Number
MAX11803
Description
(MAX11800 - MAX11803) Ultra-Small Resistive Touch-Screen Controllers
Manufacturer
Maxim Integrated Products
Datasheet

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Touch-Detect Pullup Timing Configuration Register (0x07)
Note: These settings apply to the end of all measurement and combined commands and are required for proper data tagging and
interrupt management. The exception is direct conversion commands with CONT = 1. These commands do not enter PUR/PUF inter-
vals for the purpose of data tagging.
* While 2μs is the minimum PUR interval listed, for this setting, the XPSW is not engaged, allowing for minimal power operation
(essentially adding 2μs to the PUF time).
Autonomous Mode Timing Configuration Register (0x08) (MAX11800/MAX11801)
Note: These settings apply in autonomous conversion mode only.
Low-Power, Ultra-Small Resistive Touch-Screen
NAME
DEFAULT
NAME
DEFAULT
BIT
BIT
7:4
3:0
7:4
3:0
TINIT[3:0]
SCANP[3:0]
PUR[3:0]
PUF[3:0]
BIT 7
BIT 7
______________________________________________________________________________________
0
0
NAME
NAME
BIT 6
BIT 6
0
0
Controllers with I
TINIT[3:0]
PUR[3:0]
Initial period (time between touch and initial scan block, t
0000: 10μs
0001: 20μs
0010: 50μs
0011: 80μs
0100: 100μs
0101: 200μs
0110: 500μs
0111: 800μs
Scan period (time between successive scan blocks, t
SCANP[3:0] has the same range as TINIT[3:0] above.
Rough pullup time (t
0000: 2μs*
0001: 2μs
0010: 4μs
0011: 8μs
0100: 10μs
0101: 50μs
0110: 100μs
0111: 500μs
Fine pullup time (t
0000: 10μs
0001: 20μs
0010: 50μs
0011: 80μs
0100: 100μs
0101: 200μs
0110: 500μs
0111: 800μs
BIT 5
BIT 5
0
0
PUF
BIT 4
BIT 4
PUR
0
0
)
1000: 1ms
1001: 2ms
1010: 5ms
1011: 10ms
1100: 20ms
1101: 50ms
1110: 100ms
1111: 200ms
1000: 1ms
1001: 2ms
1010: 5ms
1011: 10ms
1100: 20ms
1101: 50ms
1110: 100ms
1111: 200ms
1000: 1ms
1001: 2ms
1010: 5ms
1011: 10ms
1100: 20ms
1101: 50ms
1110: 100ms
1111: 200ms
)
BIT 3
BIT 3
0
0
DESCRIPTION
DESCRIPTION
2
C/SPI Interface
BIT 2
BIT 2
0
0
SCANP[3:0]
SP
PUF[3:0]
)
INIT
)
BIT 1
BIT 1
0
0
BIT 0
BIT 0
0
0
51

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