CY8CTST200-24LQXI Cypress Semiconductor Corp, CY8CTST200-24LQXI Datasheet - Page 214

• Manufacturer Part Number: CY8CTST200-24LQXI
• Description: IC MCU 32K FLASH 24UQFN
• Manufacturer: Cypress Semiconductor Corp
• Series: TrueTouch™r

Specifications of CY8CTST200-24LQXI

• Program Memory Type: FLASH (32 kB)
• Package / Case: 24-WQFN Exposed Pad, 24-HWQFN
• Applications: Touchscreen Controller
• Core Processor: M8C
• Controller Series: CY8CT
• Ram Size: 2K x 8
• Interface: I²C, SPI, UART/USART, USB
• Number Of I /o: 20
• Voltage - Supply: 1.8 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Processor Series: CY8CTxx2xx
• Core: M8C
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: I2C, SPI
• Maximum Clock Frequency: 24 MHz
• Number Of Timers: 3
• Operating Supply Voltage: 1.71 V to 5.5 V
• Mounting Style: SMD/SMT
• Program Memory Size: 32 KB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 770-1000 - ISP 4PORT FOR CYPRESS PSOC MCU
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 428-2956

CS_CR3
21.3.26 CS_CR3
This register contains control bits primarily for the proximity detection algorithm.
For additional information, refer to the
Bit
6
5
4
3:2
1:0
214
Individual Register Names and Addresses:
CS_CR3 : 0,A3h
Access : POR
Bit Name
0,A3h
REFMUX
REFMODE
REF_EN
LPFilt[1:0]
LPF_EN[1:0]
Name
TrueTouch Control Register 3
RW : 0
7
REFMUX
RW : 0
6
Description
This bit selects the reference voltage for the input of the reference buffer.
0
1
This bit allows manual connection of the reference buffer output to the analog global bus. If either
CI_EN = 1 or RO_EN = 1 in the CS_CR2 register, this bit has no effect (reference buffer connection is
off or controlled by other settings).
0
1
This bit enables the reference buffer to drive the analog global bus.
0
1
Low pass filter approximate time constant.
00b
01b
10b
11b
Enable this bit for the low pass filter.
00b
01b
10b
11b
Register Definitions on page 92
PSoC CY8CTMG20x and CY8CTST200 TRM, Document No. 001-53603 Rev. *C
Select REFHI (1.2V).
Select VREF (1.0V).
No connection.
Reference buffer connected to the analog global bus.
Reference buffer is disabled, powered down.
Reference buffer is enabled. Connection to the analog global bus is controlled by the REF-
MODE bit in this register, and by the CI_EN and RO_EN bits in the CS_CR2 register.
1 μ s
2 μ s
5 μ s
10 μ s
Connect both comparator channel inputs together, and through the low pass filter.
No connection of either comparator channel to low pass filter.
Connect comparator channel 0 through the low pass filter.
Connect comparator channel 1 through the low pass filter.
REFMODE
RW : 0
5
REF_EN
RW : 0
4
in the TrueTouch Module chapter .
3
LPFilt[1:0]
RW : 0
2
1
LPF_EN[1:0]
RW : 0
0,A3h
0
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