mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 1216

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

TSI signal descriptions
48.5 TSI signal descriptions
The TSI module has up to 16 external pins for touch sensing. The table below itemizes all
the TSI external pins.
48.5.1 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.
48.6 Memory map and register definition
This section presents the touch sensing input module memory map and registers
definition.
1216
FFFF_940C Status Register (TSI0_STATUS)
FFFF_9400
FFFF_9404
FFFF_9408
FFFF_9500
Absolute
address
(hex)
TSI_IN[15:0]
Signal
General Control and Status Register (TSI0_GENCS)
SCAN control register (TSI0_SCANC)
Pin enable register (TSI0_PEN)
Counter Register (TSI0_CNTR1)
TSI pins. Switchable driver that connects directly to the electrode pins
TSI[15:0] can operate as GPIO pins
Description
MCF51JF128 Reference Manual, Rev. 2, 03/2011
Register name
Table 48-1. TSI signal descriptions
Table continues on the next page...
TSIx memory map
Preliminary
(in bits)
Width
32
32
32
32
32
Access
R/W
R/W
R/W
w1c
R
Freescale Semiconductor, Inc.
Reset value
0000_0000h
0000_0000h
0000_0000h
0000_0000h
0000_0000h
I/O
I/O
Section/
48.6.1/
48.6.2/
48.6.3/
48.6.4/
48.6.5/
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