C8051F961-A-GM Silicon Labs, C8051F961-A-GM Datasheet - Page 167
C8051F961-A-GM
Manufacturer Part Number
C8051F961-A-GM
Description
8-bit Microcontrollers - MCU 128KB, DC-DC, LCD AES, QFN40
Manufacturer
Silicon Labs
Datasheet
1.C8051F960-A-GQ.pdf
(492 pages)
Specifications of C8051F961-A-GM
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
128 KB
Data Ram Size
8448 B
On-chip Adc
Yes
Operating Supply Voltage
2.5 V to 3.3 V
Operating Temperature Range
- 40 C to + 85 C
Package / Case
QFN-40
Mounting Style
SMD/SMT
Number Of Programmable I/os
34
Number Of Timers
4
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12.6. CRC0 Bit Reverse Feature
CRC0 includes hardware to reverse the bit order of each bit in a byte as shown in Figure 12.2. 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 12.6. CRC0FLIP: CRC0 Bit Flip
SFR Page = 0xF; SFR Address = 0x94
Name
Reset
Bit
7:0
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
Figure 12.2. Bit Reverse Register
5
0
CRC0FLIP
CRC0FLIP
Rev. 0.5
CRC0FLIP[7:0]
Write
Read
4
0
R/W
Function
3
0
2
0
C8051F96x
1
0
0
0
167
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