AT89C51RD2-RDTIM Atmel, AT89C51RD2-RDTIM Datasheet - Page 20
AT89C51RD2-RDTIM
Manufacturer Part Number
AT89C51RD2-RDTIM
Description
MCU 8-Bit AT89 80C51 CISC 64KB Flash 3.3V/5V 64-Pin VQFP Tray
Manufacturer
Atmel
Datasheet
1.AT89C51RD2-RDTIM.pdf
(137 pages)
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20
AT89C51RD2/ED2
Reset Value = XXXX XXX0b
Not bit addressable
Number
Bit
2
1
0
Mnemonic
SPIX2
Bit
-
-
Description
Reserved
Reserved
SPI (This control bit is validated when the CPU clock X2 is set; when X2 is low, this bit
has no effect).
Clear to select 6 clock periods per peripheral clock cycle.
Set to select 12 clock periods per peripheral clock cycle.
4235J–8051–01/08
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