EMC2300-AZC SMSC, EMC2300-AZC Datasheet - Page 68

• Manufacturer Part Number: EMC2300-AZC
• Description: Industrial Temperature Sensors Auto Fan Contrllr Up to 4 Fans
• Manufacturer: SMSC

Specifications of EMC2300-AZC

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

Revision 0.32 (06-23-08)
8.2.21
8.2.22
Register
Address
Register
Address
BIT
0
1
2
3
4
5
6
7
7Eh
7Fh
Reserved
Reserved
Reserved
Reserved
Reserved
NAME
VCCP
VOLT
VCC
Read/
Read/
Write
Write
R/W
R/W
Register 7Eh: Interrupt Enable 1 Register
This register becomes read only when the Lock bit is set. Any further attempts to write to this register
shall have no effect.
This register is used to enable individual voltage error events to set the corresponding status bits in
the interrupt status registers. This register also contains the group voltage enable bit (Bit[0] VOLT),
which is used to enable voltage events to force the interrupt pin (INT#) low if interrupts are enabled
(see Bit[2] INTEN of the Special Function register at offset 7Ch).
See
This register contains the following bits:
Register 7Fh: Configuration Register
These registers become read only when the Lock bit is set. Any further attempts to write to these
registers shall have no effect.
Figure 6.1 Interrupt Control on page
Interrupt Enable 1 (Voltages)
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Register Name
Configuration
Register Name
Table 8.40 Register 7Eh: Interrupt Enable 1 Register
DEFAULT
Table 8.42 Register 7Fh: Configuration Register
Table 8.41 Interrupt Enable 1 Register bits
0
0
1
1
0
1
1
1
Group INT# Voltage Enable - when set, enables out-of-limit voltages to
drive the INT# pin low (provided that the INTEN bit in the Special Function
register is also set).
Reserved
Reserved
When set Enables VCCP Channel to update status registers and
generate interrupts
Reserved
Reserved
Reserved
When set, enables VCC channel to update status registers and generate
interrupts.
(MSb)
Bit 7
INIT
DATASHEET
(MSb)
Bit 7
VCC
SMSC
Bit 6
24.
68
Bit 6
RES
Fan Control Device with High Frequency PWM and Temperature Monitors
SMSC
Bit 5
Bit 5
RES
SUREN
Bit 4
DESCRIPTION
Bit 4
RES
TRDY
Bit 3
VCCP
Bit 3
Bit 2
RES
Bit 2
RES
P2INT
Bit 1
Bit 1
RES
T3INT
(LSb)
VOLT
(LSb)
SMSC EMC2300
Bit 0
Bit 0
Datasheet
Default
Default
Value
Value
ECh
10h