
DS1077
7 of 21
DIV WORD
MSB
LSB MSB
LSB
N9
N8
N7
N6
N5
N4
N3
N2
N1
N0
X
first data byte
second data byte
N
These ten bits determine the value of the programmable divider (N). The range of divisor values is from 2
to 1025, and is equal to the programmed value of N plus 2 (see Table 5).
PROGRAMMABLE DIVISOR N VALUES Table 5
BIT VALUE
DIVISOR (N)
0 000 000 000**
2
0 000 000 001
3
-
1 111 111 111
1025
**Default Condition
BUS WORD
Name
-
WC
A2
A1
A0
Factory Default
0*
0
*These bits are reserved and must be set to zero.
A0, A1, A2
(Default Setting = 000)
These are the device select bits that determine the address of the device.
WC
(Default Setting WC = 0)
This bit determines when/if the EEPROM is written to after register contents have been changed.
If WC = 0 the EEPROM is written automatically after a write register command.
If WC = 1 the EEPROM is only written when the “WRITE ” command is issued.
Regardless of the value of the WC bit, when the BUS register (A0, A1, A2) is written, the current value in
all registers (DIV, MUX, and BUS) are immediately written to the EEPROM.