CY8CTST200-32LQXI Cypress Semiconductor Corp, CY8CTST200-32LQXI Datasheet - Page 220

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

Specifications of CY8CTST200-32LQXI

• Program Memory Type: FLASH (32 kB)
• Package / Case: 32-UQFN Exposed Pad, 32-HUQFN, 32-SQFN
• Applications: Touchscreen Controller
• Core Processor: M8C
• Controller Series: CY8CT
• Ram Size: 2K x 8
• Interface: I²C, SPI, UART/USART, USB
• Number Of I /o: 28
• 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: 428-2957

PRS_CR
21.3.32 PRS_CR
This register controls the Prescaler and Pseudo Random Sequence generator output. For additional information, refer to the
Register Definitions on page 92
Bit
7
6
5
4
3
2:0
220
Individual Register Names and Addresses:
PRS_CR : 0,A9h
Access : POR
Bit Name
0,A9h
CS_CLK_OUT
CS_CLK_INV
PRS_12BIT
PRS_EN
PRESCALEBYP
PRESCALE_CLK_DIV[2:0] These bits allow for of one of eight frequencies of incoming IMO clock to be fed as input to PRS.
Name
CS_CLK_OUT
Pseudo Ransom Sequence and Prescaler Control Register
RW : 0
7
CS_CLK_INV
RW : 0‘
in the TrueTouch Module chapter .
6
Description
This bit selects the TrueTouch clock (inversion or non-inversion depending on bit 6 setting) to be
routed onto primary pin depending on the OUT_P1/OUT_P0 register selection.
1
0
This bit allows you to route either TrueTouch clock or inversion of the TrueTouch clock onto pin.
1
0
This bit allows selection between 8-bit PRS or 12-bit PRS output.
0
1
This bit is used to enable or disable the PRS block.
0
1
This bit is used to bypass the prescaler and pass the input clock undivided onto the output. The out-
put of the prescaler feeds the clock input to the PRS block.
0
1
000
001
010
011
100
101
110
111
PSoC CY8CTMG20x and CY8CTST200 TRM, Document No. 001-53603 Rev. *C
PRS_12BIT
Route prescaler output or PRS output depending on CSD_PRSCLK in CS_CR0 when in
CSD mode, or route clock based on CLKSEL bits in CS_CR1 register in normal TrueTouch
mode to primary pins P1[2]/P0[7] depending on OUT_P1/OUT_P0 bit selections instead of
normal CSOUT[ selections. See OUT_P1/OUT_P0 registers for details.
Use CSOUT [1:0] selections as normal.
Inverted TrueTouch clock routes to pin (see bit 7).
Non-inverted TrueTouch clock routes to pin (see bit 7).
MSB of 8-bit PRS is sent out.
MSB of 12-bit PRS is sent out
PRS is disabled. PRS block output is '0'.
PRS is enabled and the bit 5 decides whether MSB of 12-bit PRS is sent out or MSB of 8-bit
PRS is sent out.
Divided clock is sent out of prescaler depending on bit [2:0] setting.
Incoming IMO clock is sent out of prescaler without any division.
Divides the input IMO clock by 2.
Divides the input IMO clock by 4.
Divides the input IMO clock by 8.
Divides the input IMO clock by 16.
Divides the input IMO clock by 32.
Divides the input IMO clock by 64.
Divides the input IMO clock by 128.
Divides the input IMO clock by 256.
RW : 0‘
5
PRS_EN
RW : 0
4
PRESCALE-
RW : 0
BYP
3
2
PRESCALE_CLK_DIV[2:0]
RW : 0
1
0,A9h
0
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