z8f083a ZiLOG Semiconductor, z8f083a Datasheet - Page 138

• Manufacturer Part Number: z8f083a
• Description: High-performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

PS026308-1207
Table 86. Trim Option Bits at 0006H (TCLKFLT)
BITS
FIELD
RESET
R/W
ADDR
Note: U = Unchanged by Reset. R/W = Read/Write.
Note:
Trim Bit Address 0006H
DivBy4
R/W
0
7
VBO Trim Definition
The on-chip Flash only guarantee Write operation with voltage supply over 2.7 V, Write
operation below 2.7 V will get unpredictable results.
DivBy4—Output frequency selection
0 = Output frequency is input frequency
1 = Output frequency is 1/4 of the input frequency
Reserved—Must be 1
{DlyCtl3, DlyCtl2, DlyCtl1}—3 bit selection for the pulse width that is filtered. For the
relation at 3.3V operation voltage, see
Reserved—Must be 1
{FilterSel1, FilterSel0}—2 bit selection for the clock filter mode
00 = No filter
01 = Filter low level noise on high level signal
10 = Filter high level noise on low level signal
11 = Filter both
VBO_TRIM Trigger Voltage Level
The bit values used in
000
001
101
110
100
111
Reserved
R/W
1
6
DlyCtl1
R/W
1.7
1.6
2.2
2.0
2.4
1.8
0
5
Table 85
Information Page Memory 0026H
DlyCtl2
are set at factory and no calibration is required.
R/W
0
4
Table 87
DlyCtl3
R/W
3
0
on page 127.
Reserved
R/W
2
1
Z8 Encore!
Product Specification
FilterSel1
R/W
0
1
®
F083A Series
Flash Option Bits
FilterSel0
R/W
0
0
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