X20 system modules • X20 electronics module communication • X20CS1070
X20 system User's Manual 3.10
1629
4.18.7.7.8.7 Read "RXCount" from the previous cycle
Name:
RXCountLatch
This register always contains the "RXCount" value from the previous cycle. It can be used to detect transfer errors
from the module to the CPU (see 4.18.7.7.9.4 "Taking possible errors into consideration when transmitting" on
page 1630).
The meaning of the value depends on the "RxFifoInfo" on page 1626 bit in the "Cfo_TXRXinfoFlags" register.
Data type
Value
"RxFifoInfo" bit
Meaning
0
Counter for received telegrams from the previous cycle
USINT
0 to 255
1
See bit structure.
Bit structure:
Bit
Function
Value
Information
0 - 3
Counter for received telegrams from the previous cycle
0 to 15
Only the lower 4 bits
4 - 7
Number of telegrams in the receive buffer from the previous cy-
cle
0 to 15
