Serial Interface with Time-Slot Assigner
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
Freescale Semiconductor 15-27

Figure 15-22. IDL Terminal Adaptor

The PowerQUICC II can identify and support each IDL channel or can output strobe lines for interfacing devices that do not support the IDL bus. The IDL signals for each transmit and receive channel are described in Table15-9.

Table15-9. IDL Signal Descriptions

Signal Description
L1RCLK
x
IDL clock; input to the PowerQUICCII.
L1RSYNC
x
IDL sync signal; input to the PowerQUICCII. This signal indicates that the clock periods following
the pulse designate the IDL frame.
L1RXD
x
IDL receive data; input to the PowerQUICCII. Valid only for the bits supported by the IDL; ignored
for any other signals present.
L1TXD
x
IDL transmit data; output from the PowerQUICCII. Valid only for the bits that are supported by the
IDL; otherwise, three-stated.
L1RQ
x
IDL request permission to transmit on the D channel; output from the PowerQUICCII on the L1RQx
pin.
L1GR
x
IDL grant permission to transmit on the D Channel; input to the PowerQUICCI I on the L1TSYNCx
pin.
Note:
x
= a, b, c, and d for TDMa, TDMb, TDMc, and TDMd (for SI1 and SI2).
TSA
SCC1
Ethernet
Ethernet
PHY
LAN
ASYNC
PCM
CODEC/Filter
Monocircuit
S/T
Transceiver
SPI
ICL
(Control)
B1+B2+D
IDL
(Data)
B2+D
B1
PowerQUICCII
System Bus (ROM and RAM)
SMC1
POTS
4 wire
SCC2
SMC2
SCC3