DS33R41 Maxim Integrated Products, DS33R41 Datasheet - Page 132

• Manufacturer Part Number: DS33R41
• Description: Network Controller & Processor ICs Inverse-Multiplexing Ethernet Mapper wit
• Manufacturer: Maxim Integrated Products

Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 2: REF_CLKO OFF (REF_CLKO). This bit determines the REF_CLKO output mode.
Bit 1: INT Pin Mode (INTM). This bit determines the inactive mode of the INT pin. The INT pin always drives low
when active.
Bit 0: Reset (RST). When this bit is set to 1, all of the internal data path and status and control registers (except
this RST bit), on all ports, are reset to their default state. This bit must be set high for a minimum of 100ns.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 4: Receive Serial Interface Clock Activity Latched Status 1 (RLCALS1). This bit is set to 1 if the receive
clock for Serial Interface 1 has activity. This bit is cleared upon read.
Bit 0: Transmit Serial Interface Clock Activity Latched Status 1 (TLCALS1). This bit is set to 1 if the transmit
clock for Serial Interface 1 has activity. This bit is cleared upon read.
Bit #
Name
Default
Bit 1: Reference Clock Activity Latched Status (REFCLKS). This bit is set to 1 if REF_CLK has activity. This bit
is cleared upon read.
Bit 0: System Clock Input Latched Status (SYSCLS). This bit is set to 1 if SYSCLKI has activity. This bit is
cleared upon read.
Register Name:
Register Description:
Register Address:
1 = REF_CLKO is disabled and outputs an active low signal.
0 = REF_CLKO is active and in accordance with RMII/MII Selection.
1 = Pin is high impedance when not active.
0 = Pin drives high when not active.
0 = Normal operation.
1 = Reset and force all internal registers to their default values.
—
—
—
7
0
7
0
7
0
—
—
—
6
0
6
0
6
0
GL.RTCAL
Global Receive and Transmit Serial Port Clock Activity Latched Status
04h
GL.SRCALS
Global SDRAM Reference Clock Activity Latched Status
05h
GL.CR1
Global Control Register 1
02h
—
—
—
5
0
5
0
5
0
RLCALS1
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—
—
4
0
0
4
0
4
—
—
—
3
0
3
0
3
0
REF_CLKO
—
—
2
0
2
0
0
2
REFCLKS
—
1
0
INTM
1
0
1
0
TLCALS1
SYSCLS
0
0
RST
0
0
0
0