mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 594

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

Communication Processor Module
16.7.6.1 IDL INTERFACE IMPLEMENTATION. The MPC823 can identify and support
each IDL channel or it can output strobe lines for interfacing with devices that do not support
the IDL bus. The IDL signals for each transmit and receive channel are as follows:
The basic rate IDL bus has three channels:
• L1RCLKA—IDL clock pin. Input to the MPC823.
• L1RSYNCA—IDL sync pin. Input to the MPC823. This signal indicates that the clock
• L1RXDA—IDL receive data pin. Input to the MPC823. Valid only for the bits that are
• L1TXDA—IDL transmit data pin. Output from the MPC823. Valid only for the bits that
• L1RQA—IDL request permission to transmit on the D channel. Output from the
• L1GRA—IDL grant permission to transmit on the D channel. Input to the MPC823 on
• B1 is a 64kbps bearer channel
• B2 is a 64kbps bearer channel
• D is a 16kbps signaling channel
periods following the pulse designate the IDL frame.
supported by the IDL and ignored for other signals that may be present.
are supported by the IDL. Otherwise, it is three-stated.
MPC823 on the L1RQA pin.
the L1TSYNCA pin.
Freescale Semiconductor, Inc.
For More Information On This Product,
MPC823 REFERENCE MANUAL
Go to: www.freescale.com
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