C8051F700-GQR Silicon Laboratories Inc, C8051F700-GQR Datasheet - Page 218

• Manufacturer Part Number: C8051F700-GQR
• Description: MCU 8-Bit C8051F70x 8051 CISC 15KB Flash 1.8V/3V 64-Pin TQFP T/R
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F700-GQR

• Package: 64TQFP
• Device Core: 8051
• Family Name: C8051F70x
• Maximum Speed: 25 MHz
• Ram Size: 512 Byte
• Program Memory Size: 15 KB
• Operating Supply Voltage: 1.8|3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 54
• Interface Type: I2C/SMBus/SPI/UART
• On-chip Adc: 16-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 4

C8051F70x/71x
29.6. CRC0 Bit Reverse Feature
CRC0 includes hardware to reverse the bit order of each bit in a byte as shown in Figure 29.1. Each byte
of data written to CRC0FLIP is read back bit reversed. For example, if 0xC0 is written to CRC0FLIP, the
data read back is 0x03. Bit reversal is a useful mathematical function used in algorithms such as the FFT.
SFR Definition 29.6. CRC0FLIP: CRC Bit Flip
SFR Address = 0x95; SFR Page = F
218
Name
Reset
7:0
Bit
Type
Bit
CRC0FLIP[7:0] CRC0 Bit Flip.
Name
7
0
Any byte written to CRC0FLIP is read back in a bit-reversed order, i.e. the written
LSB becomes the MSB. For example:
If 0xC0 is written to CRC0FLIP, the data read back will be 0x03.
If 0x05 is written to CRC0FLIP, the data read back will be 0xA0.
6
0
5
0
Rev. 1.0
CRC0FLIP[7:0]
4
0
R/W
Function
3
0
2
0
1
0
0
0