CY8CTST200-24LQXI Cypress Semiconductor Corp, CY8CTST200-24LQXI Datasheet - Page 229

• 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

21.3.41 I2C_BP
This register contains the base address value of the RAM data buffer and is read only.
In the table above, note that reserved bits are grayed table cells and are not described in the bit description section below.
Always write reserved bits with a value of ‘0’. For additional information, refer to the
I2C Slave chapter.
Bit
4:0
PSoC CY8CTMG20x and CY8CTST200 TRM, Document No. 001-53603 Rev. *C
Individual Register Names and Addresses:
I2C_BP
Access : POR
Bit Name
I2C Base Pointer[4:0]
Name
: 0,CBh
I
2
C Base Address Pointer Register
7
6
Description
In the EZI2C protocol, the first data byte after the slave address transaction in write mode is the base
address for subsequent reads and writes and it is transferred directly into this register. If the desired
transaction is a master write to the slave, subsequent bytes are written to the RAM buffer starting with
this address and auto incremented (see I2C_CP register). In case of a read, a Start or Restart must
be issued and the read location starts with this address and again subsequent read addresses are
auto incremented as pointed to by the I2C_CP register value.
The value of this register is modified only at the beginning of every I2C write transaction. The I2C
master must always supply a value for this register in the first byte of data after the slave’s address in
a given write transaction. If performing reads, the master need not set the value of this register. The
current value of this register is also used directly for reads.
5
0,CBh
4
3
I2C Base Pointer[4:0]
Register Definitions on page 122
0,D0h
R : 00
2
1
0,CBh
0
I2C_BP
in the
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