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AT89C51ED2-RDTIM 数据表(PDF) 20 Page - ATMEL Corporation

部件名 AT89C51ED2-RDTIM
功能描述  8-bit Flash Microcontroller
PDF  137 Pages
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制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

AT89C51ED2-RDTIM 数据表(HTML) 20 Page - ATMEL Corporation

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AT89C51RD2/ED2
4235E–8051–04/04
Table 17. CKCON1 Register
CKCON1 - Clock Control Register (AFh)
Reset Value = XXXX XXX0b
Not bit addressable
76
54
32
1
0
--
---
--
SPIX2
Bit
Number
Bit
Mnemonic
Description
7-
Reserved
6-
Reserved
5-
Reserved
4-
Reserved
3-
Reserved
2-
Reserved
1-
Reserved
0SPIX2
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.



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