Data Sheet

STMPE610 Touchscreen controller
Doc ID 15432 Rev 4 31/56
TSC_CTRL Touchscreen controller control register
Address: 0x40
Type: R/W
Reset: 0x90
Description: 4-wire touchscreen controller (TSC) setup.
0x51 TSC_DATA_Z 8 R Data port for TSC data access
0x52 TSC_DATA_XYZ 32 R Data port for TSC data access
0x56 TSC_FRACT_Z 8 R/W TSC_FRACT_Z
0x57 TSC_DATA 8 R TSC data access port
0x58 TSC_I_DRIVE 8 R/W TSC_I_DRIVE
0x59 TSC_SHIELD 8 R/W TSC_SHIELD
Table 15. Touchscreen controller register summary table
Address Register name Bit Type Function
76543 2 1 0
TSC_STA TRACK OP_MOD EN
[7] TSC_STA: TSC status
Reads '1' when touch is detected
Reads '0' when touch is not detected
Writing to this register has no effect
[6:4] TRACK: Tracking index
000: No window tracking
001: 4
010: 8
011: 16
100: 32
101: 64
110: 92
111: 127
[3:1] OP_MOD: TSC operating mode
000: X, Y, Z acquisition
001: X, Y only
010: X only
011: Y only
100: Z only
This field cannot be written on, when EN = 1
[0] EN: Enable TSC