EMC2305-1-AP-TR SMSC, EMC2305-1-AP-TR Datasheet - Page 48

• Manufacturer Part Number: EMC2305-1-AP-TR
• Description: Industrial Temperature Sensors Penta RPM-Based PWN Fan Speed Controller
• Manufacturer: SMSC

Specifications of EMC2305-1-AP-TR

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

ADDR
EFh
ADDRESS
FCh
Revision 1.2 (03-22-10)
5.19
5.20
R/W
R/W
2
0
0
0
0
1
1
R/W
R
The Software Lock Register controls the software locking of critical registers. This register is software
locked.
Bit 0 - LOCK - this bit acts on all registers that are designated SWL. When this bit is set, the locked
registers become read only and cannot be updated.
The Product Features register shows those functions that are enabled by external pin states.
Bits 5-3 - ADR[2:0] - Indicates the selected SMBus address as determined by the ADDR_SEL pin.
Bits 2-0 - FAN_SPD[2:0] - Indicates the selected fan speed if the CLK pin pull-up decode is enabled
via the ADDR_SEL pin.
Software Lock Register
Product Features Register
REGISTER
Software
‘0’ (default) - all SWL registers can be updated normally.
‘1’ - all SWL registers cannot be updated and a hard-reset is required to unlock them.
Lock
REGISTER
Features
Product
ADR[2:0]
1
0
0
1
1
0
0
B7
-
Table 5.31 ADDR_SEL Pin Configuration
Table 5.30 Product Features Register
Table 5.29 Software Lock Register
B7
-
B6
-
B6
DATASHEET
-
B5
-
0
0
1
0
1
0
1
48
B5
ADR[2:0]
B4
-
B4
Multiple RPM-Based PWM Fan Controller for Five Fans
B3
-
B3
SLAVE ADDRESS
B2
B2
0101_100(r/w)
0101_101(r/w)
1001_100(r/w)
1001_101(r/w)
0101_110(r/w)
0101_111(r/w)
-
FAN_SPD [2:0]
B1
B1
-
SMSC EMC2305
B0
LOCK
B0
Datasheet
DEFAULT
DEFAULT
00h
00h