Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
BITS
DESCRIPTION
TYPE
DEFAULT
4
IRQ Polarity (IRQ_POL)
R/W
NASR
Note 13.1
0b
When cleared, this bit enables the IRQ line to function as an active low
output. When set, the IRQ output is active high. When the IRQ is configured
as an open-drain output (via the IRQ_TYPE bit), this bit is ignored, and the
interrupt is always active low.
0: IRQ active low output
1: IRQ active high output
3:1
0
RESERVED
RO
-
IRQ Buffer Type (IRQ_TYPE)
R/W
NASR
Note 13.1
0b
When this bit is cleared, the IRQ pin functions as an open-drain output for
use in a wired-or interrupt configuration. When set, the IRQ is a push-pull
driver.
Note:
When configured as an open-drain output, the IRQ_POL bit is
ignored and the interrupt output is always active low.
0: IRQ pin open-drain output
1: IRQ pin push-pull driver
Note 13.1 Register bits designated as NASR are not reset when the DIGITAL_RST bit in the Reset
Control Register (RESET_CTL) is set.
Revision 1.2 (04-08-08)
152
SMSC LAN9313/LAN9313i
DATASHEET
SMSC [ SMSC CORPORATION ]
