pef20320 Infineon Technologies Corporation, pef20320 Datasheet - Page 175

• Manufacturer Part Number: pef20320
• Description: Multichannel Network Interface Controller For Hdlc With 32 Channels
• Manufacturer: Infineon Technologies Corporation

Figure 83
5.1.1.4 External Channelwise Test Loop
One (and only one) logical channel is mirrored from the serial data input to the serial
data output. The other logical channels are not affected by this operation. The receive
and transmit data rates for this single logical channel must be identical. Normal TCLK,
RCLK, TSP and RSP design rules apply. This test loop provides channelwise testing
capabilities during idle channel time slots, without interfering with normal data reception/
transmission.
Figure 84
User’s Manual
P Interface
P Interface
CD
CD
Enable Ext.
Complete Loop
Enable Ext.
Channelwise Loop
for Channel X
Channel X only
175
&
&
&
1
1
ITS08201
ITS08200
RSP
RCLK
TSP
TCLK
Application Notes
RDATA
TDATA
RDATA
TDATA
PEB 20320
01.2000