CY8CTST200A-48PVXI Cypress Semiconductor Corp, CY8CTST200A-48PVXI Datasheet - Page 159

• Manufacturer Part Number: CY8CTST200A-48PVXI
• Description: CY8CTST200A-48PVXI
• Manufacturer: Cypress Semiconductor Corp
• Series: TrueTouch™r

Specifications of CY8CTST200A-48PVXI

• Applications: Touchscreen Controller
• Core Processor: M8C
• Program Memory Type: FLASH (32 kB)
• Controller Series: CY8CT
• Ram Size: 2K x 8
• Interface: I²C, SPI, UART/USART, USB
• Number Of I /o: 38
• Voltage - Supply: 1.8 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-SSOP
• Processor Series: CY8CTxx2xxA
• Core: M8C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 428-3081-5

Figure 18-11
to the point at which the RX Buffer register is loaded with the received byte. This means that to send a byte in the next trans-
fer, it must be loaded into the TX Buffer register before the falling edge of SS_. This ensures a minimum setup time for the
first bit, since the leading edge of the first SCLK must latch in the received data. If SS_ is not toggled between each byte or is
forced low through the configuration register, the leading edge of SCLK is used to define the start of transfer. However, in this
case, the user must provide the required setup time (one-half clock minimum before the leading edge) with a knowledge of
system latencies and response times.
Figure 18-12
edge of the first SCLK to the point at which the RX Buffer register is loaded with the received byte. Loading the shifter by the
leading edge of the clock has the effect of providing the required one-half clock setup time, as the data is latched into the
receiver on the trailing edge of the SCLK in these modes.
PSoC CY8CTMG20x and CY8CTST200 TRM, Document No. 001-53603 Rev. *C
SS Forced Low
SS
SCLK (Mode 0)
SCLK (Mode 1)
SS Toggled on a Message Basis
SS
SCLK (Mode 0)
SCLK (Mode 1)
SS Toggled on Each Byte
SS
SCLK (Mode 0)
SCLK (Mode 1)
illustrates TX data loading in modes 0 and 1. A transfer in progress is defined to be from the falling edge of SS_
illustrates TX data loading in modes 2 and 3. In this case, a transfer in progress is defined to be from the leading
SCLK (Mode 2)
SCLK (Mode 3)
Transfer in Progress
Transfer in Progress
Transfer in Progress
Figure 18-11. Mode 0 and 1 Transfer in Progress
Figure 18-12. Mode 2 and 3 Transfer in Progress
(No Dependance on SS)
Transfer in Progress
Transfer in Progress
Transfer in Progress
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SPI
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