DS33R11 Maxim Integrated Products, DS33R11 Datasheet - Page 161

• Manufacturer Part Number: DS33R11
• Description: Network Controller & Processor ICs Ethernet Mapper with Integrated T1-E1-J1
• Manufacturer: Maxim Integrated Products

Specifications of DS33R11

• Product: Framer
• Number Of Transceivers: 1
• Supply Voltage (max): 1.89 V, 3.465 V
• Supply Voltage (min): 1.71 V, 3.135 V
• Supply Current (max): 100 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: BGA

11.5.3 Receive Serial Interface
Serial Receive Registers are used to control the HDLC Receiver associated with each Serial Interface. Note that
throughout this document HDLC Processor is also referred to as “Packet Processor”. The receive packet
processor block has seventeen registers.
11.5.3.1 Receive Serial Register Bit Descriptions
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 0: Receive Data Enable Polarity (RDENPLT) Receive Data Enable Polarity. If set to 1, RDEN Low enables
reception of the bit.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 5: Receive FCS Processing Disable (RFPD) – When equal to 0, FCS processing is performed and FCS is
appended to packets. When set to 1, FCS processing is disabled (the packets do not have an FCS appended). In
X.86 mode, FCS processing is always enabled.
Bit 4: Receive FCS-16 Enable (RF16) – When 0, the error checking circuit uses a 32-bit FCS. When 1, the error
checking circuit uses a 16-bit FCS. This bit is ignored when FCS processing is disabled. In X.86 mode, the FCS is
always 32 bits.
Bit 3: Receive FCS Extraction Disable (RFED) – When 0, the FCS bytes are discarded. When 1, the FCS bytes
are passed on. This bit is ignored when FCS processing is disabled. In X.86 mode, FCS bytes are discarded.
Bit 2: Receive Descrambling Disable (RDD) – When equal to 0, X
1, descrambling is disabled.
Bit 1: Receive Bit Reordering Enable (RBRE) – When equal to 0, reordering is disabled and the first bit received
is expected to be the MSB DT [7] of the byte. When set to 1, bit reordering is enabled and the first bit received is
expected to be the LSB DT [0] of the byte.
Bit 0: Receive Clear Channel Enable (RCCE) – When equal to 0, packet processing is enabled. When set to 1,
the device is in clear channel mode and all packet-processing functions except descrambling and bit reordering are
disabled.
7
0
7
0
-
-
6
0
6
0
-
-
LI.RSLCR
Receive Serial Interface Configuration Register
100h
LI.RPPCL
Receive Packet Processor Control Low Register
101h
RFPD
5
0
5
0
-
161 of 344
RF16
0
0
4
4
-
RFED
3
0
3
0
-
43
+1 descrambling is performed. When set to
RDD
2
0
2
0
-
RBRE
1
0
1
0
-
RDENPLT
RCCE
0
0
0
0