cx28560 Mindspeed Technologies, cx28560 Datasheet - Page 116

• Manufacturer Part Number: cx28560
• Description: Hdlc Controller
• Manufacturer: Mindspeed Technologies

The CX28560 Memory Organization
5.7
5.7.1
Table 5-24. RSLP Channel Status Register
5.7.2
Table 5-25. RSLP Channel Configuration Register (1 of 2)
5-26
31:1
31:30
Bit
Bit
0
29
RSVD
RACTIVE
Field Name
RPROTCOL[1:0]
RINV
Field Name
Receive Path Registers
RSLP Channel Status Register
RSLP Channel Configuration Register
Host
R
R
Receive path registers contain the information necessary to configure the receive
direction. This configuration includes registers that are related to the BUFFC block,
host interface, registers that control the RSLP, and RSIU.
The RSLP Channel Status register is a Read Only (RO) register. It provides
information from RSLP block regarding the channel state. There is one RSLP
Channel status register for each of the CX28560’s channels (i.e., 2047 registers).
The Receive Channel Configuration register contains configuration bits applying to
the logical channels within the CX28560. There are 2047 such registers, one for each
channel. The RSLP Channel Configuration Register configures aspects of the channel
common to all messages passing through the channel. One descriptor exists for each
logical channel direction.
configuration descriptor. For each channel to be used in the CX28560, this register
must be configured before activation (no default values exist).
Value
0
1
2
3
0
1
Value
—
0
1
TRANSPARENT.
HDLC with no FCS.
Used in RSLP for full packet forwarding and/or channel monitoring application. For this
mode the short message detection is disabled. Any number of bytes can be transmitted
and received within any single message including messages of only one byte.
HDLC with FCS16 (FCS—2 bytes).
HDLC with FCS32 (FCS—4 bytes).
Data Inversion disabled.
Data Inversion enabled.
Message is received from SIU with polarity change (the inversion is done to all bits
received).
Mindspeed Technologies™
Reserved.
Channel Inactive.
The channel has been deactivated due to either a service request channel
deactivation or Reset (PCI Reset or Soft Chip Reset).
Channel Active.
The channel has been activated by service request channel activation
Advance Information
Table 5-25
lists the values and descriptions of each channel
Description
Description
CX28560 Data Sheet
28560-DSH-001-B