TS87C54X2-LCA Ver la hoja de datos (PDF) - Atmel Corporation
Número de pieza
componentes Descripción
Fabricante
TS87C54X2-LCA Datasheet PDF : 58 Pages
| |||
CKCON - Clock Control Register (8Fh)
7
6
5
-
-
-
Table 4. CKCON Register
4
3
-
-
TS80C54X2/C58X2
TS87C54X2/C58X2
2
1
0
-
-
X2
Bit
Bit
Number Mnemonic
Description
7
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
4
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
3
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
2
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
1
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
CPU and peripheral clock bit
0
X2
Clear to select 12 clock periods per machine cycle (STD mode, FOSC=FXTAL/2).
Set to select 6 clock periods per machine cycle (X2 mode, FOSC=FXTAL).
Reset Value = XXXX XXX0b
Not bit addressable
For further details on the X2 feature, please refer to ANM072 available on the web (http://www.atmel -wm.com)
Rev. C - 15 January, 2001
9
Share Link: 