Z8F0830HH020SG Datasheet, PDF (150/257 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore!^® F0830 Series
Product Specification
132
Note: The bit values used in Table 87 are set at the factory; no calibration is required.
Table 88. VBO Trim Definition
VBO_TRIM
000
001
101
110
100
111
Trigger Voltage
Level
1.7
1.6
2.2
2.0
2.4
1.8
On-chip Flash memory is only guaranteed to perform write operations when voltage sup-
plies exceed 2.7 V. Write operations at voltages below 2.7 V will yield unpredictable
results.
Table 89. Trim Option Bits at 0006H (TCLKFLT)
Bit
7
6
5
4
3
2
1
0
Field
DivBy4 Reserved DlyCtl1 DlyCtl2 DlyCtl3 Reserved FilterSel1 FilterSel0
RESET
0
1
0
0
0
1
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Address
Information Page Memory 0026H
Note: U = Unchanged by Reset. R/W = Read/Write.
Bit
Description
[7]
DivBy4
Output Frequency Selection
0 = Output frequency is input frequency.
1 = Output frequency is 1/4 of the input frequency.
[6]
Reserved
This bit is reserved and must be programmed to 1.
[5:3]
DlyCtlx
Delay Control
3-bit selection for the pulse width that can be filtered. See Table 90 for Delay Control values at
3.3 V operation voltage.
[2]
Reserved
This bit is reserved and must be programmed to 1.
Notes: x indicates bit values 3–1; y indicates bit values 1–0.
PS025113-1212
Trim Bit Address Space