enCoRe™ V CY7C643xx, enCoRe™ V LV CY7C604xx TRM, Document No. 001-32519 Rev *H
221
1,D2h
21.4.10 ECO_ENBUS
External Oscillator ENBUS Register
The ECO_ENBUS register is used to disable and enable the external crystal oscillator (ECO). In the table, note that reserved
bits are grayed table cells and are not described in the bit description section. Reserved bits should always be written with a
value of ‘0’. See the
Application Overview on page 75
for the proper sequence for enabling the ECO.
2:0
ECO_ENBUS[2:0]
These bits should be written with a value of 011b to allow the ECO to be enabled by bits in the
ECO_CFG register, or a value of 111b (default) to disable the ECO. Other values in this register are
reserved.
Individual Register Names and Addresses:
1,D2h
ECO_ENBUS : 1,D2h
7
6
5
4
3
2
1
0
Access : POR
RW : 7
Bit Name
ECO_ENBUS[2:0]
Bits
Name
Description
