Z8 Encore! XP® F08xA Series
Product Specification
144
Trim Bit Address 0003H
Table 92. Trim Option Bits at Address 0003H (TLVD)
BITS
7
6
5
4
3
2
1
0
Reserved
LVD_TRIM
FIELD
RESET
R/W
U
U
U
U
U
U
U
U
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Information Page Memory 0023H
ADDR
Note: U = Unchanged by Reset. R/W = Read/Write.
Reserved—Must be 1.
LVD_TRIM—Low Voltage Detect Trim
This trimming affects the low voltage detection threshold. Each LSB represents a
50mV change in the threshold level. Alternatively, the low voltage threshold may
be computed from the options bit value by the following equation:
LVD_LVL = 3.2V - LVD_TRIM * 0.05V
LVD Threshold (V)
LVD_TRIM Minimum Typical Maximum Description
00000
00001
00010
00011
TBD
TBD
TBD
TBD
TBD
3.20
3.15
3.10
3.05
TBD
TBD
TBD
TBD
TBD
Maximum LVD threshold
00100
to
3.00
to
01010
2.79
Default on Reset and to be programmed into Flash
before customer delivery to ensure 2.7V operation.
01010
to
TBD
2.70
to
TBD
11111
1.65
Minimum LVD threshold
PS024705-0405
P R E L I M I N A R Y
Flash Option Bits
ZILOG [ ZILOG, INC. ]
