EMC2303-1-KZ-TR SMSC, EMC2303-1-KZ-TR Datasheet - Page 57

• Manufacturer Part Number: EMC2303-1-KZ-TR
• Description: Industrial Temperature Sensors RPM B Fan Controller w/HW Thermal Shutdwn
• Manufacturer: SMSC

Specifications of EMC2303-1-KZ-TR

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

Fan Control Device with High Frequency PWM and Temperature Monitors
Datasheet
SMSC EMC2300
8.2.10
Register
Address
BIT
0
1
2
3
4
5
6
7
46h
47h
48h
49h
Diode 1 Fault
Diode 2 Fault
Slow/Stalled
Slow/Stalled
Slow/Stalled
Slow/Stalled
Reserved
Reserved
Remote
Remote
TACH1
TACH2
TACH3
TACH4
NAME
Read/
Write
R/W
R/W
R/W
R/W
Note: Clearing the individual enable bits.
1. An interrupt status bit will never change from a 0 to a 1 when the corresponding individual interrupt
2. If the individual enable bit is cleared while the associated status bit is 1, the status bit will be
Setting the Lock bit has no effect on these registers.
If a voltage input either exceeds the value set in the voltage high limit register or falls below or equals
the value set in the voltage low limit register, the corresponding bit will be set automatically by the
EMC2300
scale for the nominal voltage, meaning that at nominal voltage, each input will be C0h, as shown in
Table
Registers 44-4Dh: Voltage Limit Registers
enable bit is cleared (set to 0), regardless of whether the limits are violated during a measurement.
cleared when the associated reading register is updated. The reading registers only get updated
when the START bit is set to ‘1’. If the enable bit is cleared when the START bit is 0, the associated
interrupt status bit will not be cleared until the start bit is set to 1 and the associated reading register
is updated.
8.18.
in the interrupt status registers (41-42h). Voltages are presented in the registers at ¾ full
R/W
R
R
R
R
R
R
R
R
Register Name
Vccp High Limit
Vccp Low Limit
VCC High Limit
VCC Low Limit
Table 8.17 Registers 44-4Dh: Voltage Limit Registers
DEFAULT
Table 8.16 Interrupt Status Register 2
0
0
0
0
0
0
0
0
Reserved
Reserved
The
reading is above the value set in the Tach1 Minimum MSB and LSB
registers.
The
reading is above the value set in the Tach2 Minimum MSB and LSB
registers.
The
reading is above the value set in the Tach3 Minimum MSB and LSB
registers.
The
reading is above the value set in the Tach4 Minimum MSB and LSB
registers.
The
or open circuit fault on the Remote1+ or Remote1- thermal diode input
pins as defined in the section
Note:
The
or open circuit fault on the Remote2+ or Remote2- thermal diode input
pins as defined in the section
Note:
EMC2300
EMC2300
EMC2300
EMC2300
EMC2300
EMC2300
DATASHEET
(MSb)
Bit 7
If the START bit is set and a fault condition exists, the Remote
Diode 1 reading register will be forced to 80h.
If the START bit is set and a fault condition exists, the Remote
Diode 2 reading register will be forced to 80h.
7
7
7
7
57
automatically sets this bit to 1 when there is either a short
automatically sets this bit to 1 when there is either a short
automatically sets this bit to 1 when the TACH1 input
automatically sets this bit to 1 when the TACH2 input
automatically sets this bit to 1 when the TACH3 input
automatically sets this bit to 1 when the TACH4 input
Bit 6
6
6
6
6
Bit 5
5
5
5
5
DESCRIPTION
Bit 4
Diode Fault on page
Diode Fault on page
4
4
4
4
Bit 3
3
3
3
3
Bit 2
2
2
2
2
Bit 1
Revision 0.32 (06-23-08)
24.
24.
1
1
1
1
(LSb)
Bit 0
0
0
0
0
Default
Value
FFh
FFh
00h
00h