peb20532 Infineon Technologies Corporation, peb20532 Datasheet - Page 101

• Manufacturer Part Number: peb20532
• Description: 2 Channel Serial Optimized Communication Controller
• Manufacturer: Infineon Technologies Corporation

DTE-A is receiving data and its receive FIFO threshold is reached, the RTS signal goes
in-active ’HIGH’ forcing the CTS of DTE-B to become in-active indicating that
transmission has to stop after finishing the current character. Both DTE devices should
also be using the CTS signal to flow control their transmitters. When the shadow receive
FIFO in DTE-A is cleared its RTS goes active (low) and this signals the far end DTE-B
to resume transmission. Data flow control from DTE-B to DTE-A works in the same way.
Figure 47
Data Sheet
DTE A
Out-of-Band DTE-DTE Bi-directional Flow Control
SEROCCO-M
TxD
RTS
RxD
CTS
RS232c Signals
(drivers not shown)
101
DTE
Detailed Protocol Description
TxD
RxD
RTS
CTS
SEROCCO-M
B
ITS08517
PEB 20532
PEF 20532
2000-09-14