TS87C51RD2 ATMEL Corporation, TS87C51RD2 Datasheet - Page 14
TS87C51RD2
Manufacturer Part Number
TS87C51RD2
Description
(TS8xC51Rx2) High Performance 8-bit Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.TS87C51RD2.pdf
(85 pages)
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14
AT/TS8xC51Rx2
Reset Value = XXXX XXX0b
Not bit addressable
For further details on the X2 fe ature, please refer to ANM072 ava ilable on the web
(http://www.atmel.com)
Bit Number
4
3
2
1
0
Mnemonic
Bit
X2
-
-
-
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
CPU and peripheral clock bit
Clear to select 12 clock periods per machine cycle (STD mode, F
Set to select 6 clock periods per machine cycle (X2 mode, F
OSC
=F
OSC
XTAL
=F
).
4188E–8051–08/06
XTAL
/
2).