X3101V28 Intersil, X3101V28 Datasheet - Page 24

• Manufacturer Part Number: X3101V28
• Description: IC PROTECT/MONITOR 3CELL 28TSSOP
• Manufacturer: Intersil

Specifications of X3101V28

• Function: Battery Monitor
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 6 V ~ 24 V
• Operating Temperature: -20°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Table 30. X3100/X3101 Instruction Set
Write Enable/Write Disable (WREN/WRDI)
Any write to a nonvolatile array or register, requires
the WREN command be sent prior to the write com-
mand. This command sets an internal latch allowing
Figure 9. EEPROM Write Enable Latch (WREN/WRDI) Operation Sequence
*Instructions have the MSB in leftmost position and are transferred MSB first.
EEREAD STAT
Instruction
EEWRITE
EEREAD
RDSTAT
WCNTR
SET IDL
WCFIG
WREN
Name
WRDI
Instruction
0000 1001
0000 0110
0000 0100
0000 0010
0000 0101
0000 0011
0000 1010
0000 1011
0000 0001
Format*
24
SCK
SO
CS
SI
Set the write enable latch (write enable operation)—Figure 9
Reset the write enable latch (write disable operation)—Figure 9
Write command followed by address/data (4kbit EEPROM)—Figure 10, Figure 11
Reads IDLock settings & status of EEPROM EEWRITE instruction—Figure 12
Read operation followed by address (for 4kbit EEPROM)—Figure 13
Write to configuration register followed by two bytes of data—Figure 2, Figure 14.
Data stored in SRAM only and will power-up to previous settings—Figure 1
Write to control register, followed by two bytes of data—Figure 15
Read contents of status register—Figure 16
Set EEPROM ID lock partition followed by partition byte—Figure 17
High Imped
0
1
ance
2
X3100, X3101
Instruction
(1 Byte)
3
4
5
the write operation to proceed. The WRDI command
resets the internal latch if the system decides to abort
a write operation. See Figure 9.
6
7
Description
WREN
WRDI
January 3, 2008
FN8110.1