K60P100M100SF2RM Datasheet, PDF (1762/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

TSI signal descriptions
55.5 TSI signal descriptions
The TSI module has up to 16 external pins for touch sensing. The table below itemizes all
the TSI external pins.
Table 55-1. TSI signal descriptions
Signal
Description
I/O
TSI_IN[15:0]
TSI pins. Switchable driver that connects directly to the electrode pins
I/O
TSI[15:0] can operate as GPIO pins
55.5.1 TSI_IN[15:0]
When TSI functionality is enabled by the PEN[PEN], the TSI analog portion uses
corresponding TSICHn to connect external on-board touch capacitors. The connection
between the pin and the touch pad must be kept as short as possible to reduce distribution
capacity on board that will add to the system base capacitance.
55.6 Memory map and register definition
This section presents the touch sensing input module memory map and registers
definition.
Absolute
address
(hex)
TSI memory map
Register name
Width
(in bits)
Access
Reset value
4004_5000 General Control and Status Register (TSI0_GENCS)
32
R/W 0000_0000h
4004_5004 SCAN control register (TSI0_SCANC)
32
R/W 0000_0000h
4004_5008 Pin enable register (TSI0_PEN)
32
R/W 0000_0000h
4004_500C Status Register (TSI0_STATUS)
32
w1c 0000_0000h
4004_5100 Counter Register (TSI0_CNTR1)
32
Table continues on the next page...
R
0000_0000h
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K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc.