ds2436b Maxim Integrated Products, Inc., ds2436b Datasheet - Page 22

• Manufacturer Part Number: ds2436b
• Description: Ds2436 Battery Id/monitor Chip
• Manufacturer: Maxim Integrated Products, Inc.

DS2436 COMMAND SET Table 3
Read Scratchpad
Write Scratchpad
Copy SP1 to NV1
Copy to SP2 to NV2
Copy SP3 to SRAM
Copy NV1 to SP1
Copy NV2 to SP2
Lock NV1
Unlock NV1
Read Registers
Increment Cycle
Counter
Convert V
Convert T
Reset Cycle Counter
Copy SRAM to SP3
INSTRUCTION
Reads bytes from
DS2436 Scratchpad
Writes bytes to
Scratchpad
Copies entire contents of
SP1 to NV1
Copies entire contents of
SP2 to NV2
Copies entire contents
to SP3 to SRAM
Copies entire contents
of NV1 to SP1
Copies entire contents
to NV2 to SP2
Copies entire contents
of SRAM to SP3
Locks 24 bytes of SP1
and NV1 from writing
Unlocks 24
bytes of SP1 and NV1
for writing
Reads bytes from
Temperature, Voltage,
Status and ID Registers
Resets cycle counter
register to 0
Increments the value in
the cycle counter register
Initiates battery voltage
A/D conversion
Initiates temperature
conversion
DESCRIPTION
DS2436
22 of 29
(00h-5Fh)>
PROTOCOL
00h-5Fh)>
80h-83h)>
17h<addr
(60h-63h,
11<addr
B2<addr
77h-78h,
7Ah
22h
25h
28h
71h
77h
43h
44h
D2h
B8h
B5h
B4h
MASTER STATUS
AFTER ISSUING
1-WIRE BUS
PROTOCOL
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
RX
RX
TX
{NVB bit in Status
Register=1 until copy
complete(2-5 ms,typ)}
{NVB bit in Status
Register=1 until copy
complete(2-5 ms,typ)}
{NVB bit in Status
Register=1 until lock
complete(2-5 ms,typ)}
{NVB bit in Status
Register=1 until
unlock complete(2-5
ms,typ)}
{NVB bit in Status
Register=1 until reset
complete(2-5 ms,typ)}
{NVB bit in Status
Register=1 until
increment complete(2-
5 ms,typ)}
conversion complete}
conversion complete}
{ADB bit in Status
1-WIRE BUS DATA
Register = 1 until
Register = 1 until
{TB bit in Status
AFTER ISSUING
<write data>
PROTOCOL
<read data>
<read data>
Idle
Idle
Idle
Idle