Z16F2800100ZCOG Zilog, Z16F2800100ZCOG Datasheet - Page 349

• Manufacturer Part Number: Z16F2800100ZCOG
• Description: DEV KIT FOR Z16F ZNEO
• Manufacturer: Zilog
• Series: ZNEO™r
• Type: MCUr

Specifications of Z16F2800100ZCOG

• Contents: Evaluation Board, Software and Documentation
• For Use With/related Products: Z16F Series
• For Use With: 269-4661 - KIT ACC ETHERNET SMART CABLE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4537

Oscillator Control Register Definitions
Table 180. Oscillator Control Register (OSCCTL)
PS022008-0810
Bit Position
[7]
INTEN
[6]
XTLEN
[5]
WDTEN
[4]
POFEN
BITS
FIELD
RESET
R/W
ADDR
* The reset value is 1 if the option bit LPOPT is 0.
Oscillator Control Register
INTEN
R/W
7
1
The Oscillator Control register (OSCCTL) enables or disables the various oscillator
circuits, enables/disables the failure detection/recovery circuitry, actively powers down
the flash, and selects the primary oscillator, which becomes the system clock.
The Oscillator Control register must be unlocked before writing. Writing the two-step
sequence
The register locks after completion of a register write to the OSCCTL.
Value (H)
If the WDT is the primary oscillator or if the Watchdog Timer oscillator is disabled,
de-assert the
0
1
0
1
0
1
0
1
XTLEN
E7H
R/W
6
0
Description
Internal Precision Oscillator Enable
Internal precision oscillator is disabled.
Internal precision oscillator is enabled.
Crystal Oscillator Enable
Crystal oscillator is disabled.
Crystal oscillator is enabled.
WDT Oscillator Enable
WDT oscillator is disabled.
WDT oscillator is enabled.
Primary Oscillator Failure Detection Enable
Failure detection and recove ry of primary oscillator is disabled. This bit is
cleared automatically if a primary oscillator failure is detected.
Failure detection and recovery of primary oscillator is enabled.
WDFEN
followed by
WDTEN
bit of the OSCCTL register.
R/W
5
1
P R E L I M I N A R Y
18H
to the Oscillator Control register address unlocks it.
POFEN
R/W
4
0
FF_E0A0H
WDFEN
R/W
3
0
FLPEN
R/W
0*
2
Product Specification
ZNEO
1
Oscillator Control
SCKSEL
Z16F Series
R/W
00
0
333