Cypress PSoC CY8CTMG20 Series, Technical Reference Manual

Page: 94 / 308

94 PSoC CY8CTMG20x and CY8CTST200 TRM, Document No. 001-53603 Rev. *C
TrueTouch Module
11.2.4 CS_CR3 Register
The TrueTouch Control Register 3 (CS_CR3) contains con-
trol bits primarily for the low pass filter and reference buffer.
Bit 6: REFMUX. This bit selects between VREF and REFHI
for the reference buffer input.
Bit 5: REFMODE. This bit is used for manual connection of
the reference buffer to the analog global bus. If either the
CI_EN or RO_EN bits are set high in the CS_CR2 register,
this bit has no effect.
Bit 4: REF_EN. This bit enables the reference buffer to
drive to the analog global bus.
Bits 3 and 2: LPFilt[1:0]. These bits control the time con-
stant of the low pass filter that connect to the analog bus.
Bits 1 and 0: LPF_EN[1:0]. These bits are used to connect
a low pass filter into the input of either comparator channel.
For additional information, refer to the CS_CR3 register on
page 214 .
11.2.5 CS_CNTL Register
The TrueTouch Counter Low Byte Register (CS_CNTL) con-
tains the current count for the low byte counter. Bits 7 to 0: Data[7:0]. This value contains the current
count for the counter low block. Stop this block to read a
valid value.
For additional information, refer to the CS_CNTL register on
page 215 .
11.2.6 CS_CNTH Register
The TrueTouch Counter High Byte Register (CS_CNTH)
contains the current count value for the high byte counter. Bits 7 to 0: Data[7:0]. This value contains the current
count for the counter high block. Stop this block to read a
valid value.
For additional information, refer to the CS_CNTH register on
page 216 .
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Access
0,A3h CS_CR3 REFMUX REFMODE REF_EN LPFilt[1:0] LPF_EN[1:0] RW : 00
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Access
0,A4h CS_CNTL Data[7:0] RO : 00
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Access
0,A5h CS_CNTH Data[7:0] RO : 00
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