CY8CTST200-48LTXIT Cypress Semiconductor Corp, CY8CTST200-48LTXIT Datasheet - Page 153

• Manufacturer Part Number: CY8CTST200-48LTXIT
• Description: IC MCU 32K FLASH 48-QFN
• Manufacturer: Cypress Semiconductor Corp
• Series: TrueTouch™r

Specifications of CY8CTST200-48LTXIT

• 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-QFN
• Processor Series: CY8CTxx2xx
• Core: M8C
• Data Bus Width: 8 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Normal Operation. Typical timing for an SPIM transfer is
shown in
writes a byte to transmit when TX Reg Empty status is true.
If no transmission is currently in progress, the data is loaded
into the shifter and the transmission is initiated. The TX Reg
Empty status is asserted again and the user is allowed to
write the next byte to be transmitted to the TX Buffer regis-
ter.
PSoC CY8CTMG20x and CY8CTST200 TRM, Document No. 001-53603 Rev. *C
Figure 18-5
INTERNAL CLOCK
clock is CLK input
internal bit rate
divided by two.
Free running,
TX REG EMPTY
SCLK (MODE 0)
SCLK (MODE 1)
RX REG FULL
CLK INPUT
User writes first
Buffer register.
byte to the TX
and
MOSI
Figure
18-6. The user initially
Buffer write.
Setup time
Figure 18-5. Typical SPIM Timing in Mode 0 and 1
for TX
First input bit
is latched.
D7
Shifter is loaded
with first byte.
First shift.
D6
After the last bit is output, if TX Buffer data is available with
one-half clock setup time to the next clock, a new byte trans-
mission is initiated. An SPIM block receives a byte at the
same time that it sends one. The SPI Complete or RX Reg
Full can be used to determine when the input byte has been
received.
User writes next
Buffer register.
D5
byte to the TX
edge and is latched
data is valid on this
Last bit of received
into RX Buffer.
D2
D1
D0
Shifter is loaded
with next byte.
D7
153
SPI
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