KSZ8851-16MLLJ_10 Datasheet, PDF (63/90 Pages) Micrel Semiconductor – Single-Port Ethernet MAC Controller with 8-Bit or 16-Bit Non-PCI Interface

Micrel, Inc.
KSZ8851-16MLLJ
RX Data Byte Count Threshold Register (0x8E – 0x8F): RXDBCTR
This register is used to program the received data byte count threshold.
Bit
15-0
Default Value R/W
0x0000
RW
Description
RXDBCT Receive Data Byte Count Threshold
To program received data byte threshold value in byte count.
When bit 6 set to 1 in RXQCR register, the KSZ8851-16MLLJ will set RX interrupt (bit 13
in ISR) when the number of received bytes in RXQ buffer exceeds the threshold set in this
register.
Interrupt Enable Register (0x90 – 0x91): IER
This register enables the interrupts from the QMU and other sources.
Bit
Default Value R/W
Description
15
0x0
RW
LCIE Link Change Interrupt Enable
When this bit is set, the link change interrupt is enabled.
When this bit is reset, the link change interrupt is disabled.
14
0x0
RW
TXIE Transmit Interrupt Enable
When this bit is set, the transmit interrupt is enabled.
When this bit is reset, the transmit interrupt is disabled.
13
0x0
RW
RXIE Receive Interrupt Enable
When this bit is set, the receive interrupt is enabled.
When this bit is reset, the receive interrupt is disabled.
12
0x0
RW
Reserved
11
0x0
RW
RXOIE Receive Overrun Interrupt Enable
When this bit is set, the Receive Overrun interrupt is enabled.
When this bit is reset, the Receive Overrun interrupt is disabled.
10
0x0
RW
Reserved
9
0x0
RW
TXPSIE Transmit Process Stopped Interrupt Enable
When this bit is set, the Transmit Process Stopped interrupt is enabled.
When this bit is reset, the Transmit Process Stopped interrupt is disabled.
8
0x0
RW
RXPSIE Receive Process Stopped Interrupt Enable
When this bit is set, the Receive Process Stopped interrupt is enabled.
When this bit is reset, the Receive Process Stopped interrupt is disabled.
7
0x0
RW
Reserved
6
0x0
RW
TXSAIE Transmit Space Available Interrupt Enable
When this bit is set, the Transmit memory space available interrupt is enabled.
When this bit is reset, the Transmit memory space available interrupt is disabled.
5
0x0
RW
RXWFDIE Receive Wake-up Frame Detect Interrupt Enable
When this bit is set, the Receive wakeup frame detect interrupt is enabled.
When this bit is reset, the Receive wakeup frame detect interrupt is disabled.
4
0x0
RW
RXMPDIE Receive Magic Packet Detect Interrupt Enable
When this bit is set, the Receive magic packet detect interrupt is enabled.
When this bit is reset, the Receive magic packet detect interrupt is disabled.
3
0x0
RW
LDIE Linkup Detect Interrupt Enable
When this bit is set, the wake-up from linkup detect interrupt is enabled.
When this bit is reset, the linkup detect interrupt is disabled.
March 2010
63
M9999-030210-1.0