DS2436 Dallas Semiconducotr, DS2436 Datasheet - Page 22

• Manufacturer Part Number: DS2436
• Description: Battery ID/Monitor Chip
• Manufacturer: Dallas Semiconducotr

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
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(00h-5Fh)>
PROTOCOL
00h-5Fh)>
80h-83h)>
17h<addr
(60h-63h,
11<addr
77h-78h,
B2<addr
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
TX
RX
Register=1 until copy
complete(2-5 ms,typ)
Register=1 until copy
complete(2-5 ms,typ)
Register=1 until lock
complete(2-5 ms,typ)
Register=1 until
unlock complete(2-5
ms,typ)
Register=1 until reset
complete(2-5 ms,typ)
Register=1 until
increment complete(2-
5 ms,typ)
conversion complete
conversion complete
NVB bit in Status
NVB bit in Status
NVB bit in Status
NVB bit in Status
NVB bit in Status
NVB bit in Status
1-WIRE BUS DATA
Register = 1 until
Register = 1 until
ADB bit in Status
AFTER ISSUING
TB bit in Status
<write data>
PROTOCOL
<read data>
<read data>
Idle
Idle
Idle
Idle
DS2436