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Debug Port
MFR4200 Data Sheet, Rev. 0
Freescale Semiconductor
203
3.10.2
Debug Port Functions
Table 3-23
describes all debug port functions.
Table 3-23. Debug Port Functions Description
Function
Short
Name
Indicated by
Description
Protocol state change
PCS
Rising edge of the signal
The CC strobes every protocol state change
(see
Section 3.2.3.4.1, “Protocol State Register
(PSR)
”).
Slot start in static segment
SSS
Rising edge of the signal
The CC strobes every static slot start.
Minislot start
MSS
Rising edge of the signal
The CC strobes every minislot start.
RxD after glitch filter on channel
A
RAGFA
—
This function outputs data received on channel
A RxD (RXD_BG1/RXD1_485 pin) after glitch
filter processing.
Dynamic slot start on channel A
DSSA
Rising edge of the signal
The CC strobes every dynamic slot start on
channel A.
Start of frame on channel A
SFA
Rising edge of the signal
The CC strobes every receive frame start on
channel A.
Received syntactically correct
an semantically valid frame
indication on channel A
RCFA
Rising edge of the signal
The CC indicates every reception of a
syntactically correct and semantically valid
frame on channel A after 11 FlexRay bus bits,
measured from the received frame end
sequence.
Start of a communication cycle
SCC
Rising edge of the signal and its
level
The CC strobes every communication cycle
start with a rising edge. This signal stays high
during the communication cycle and the CC
negates it (low) with the NIT start.
Macrotick
MTS
Rising edge of the signal
This function outputs the CC internal corrected
macrotick.
Start of offset correction
SOC
Rising edge of the signal
The CC strobes the time point during the NIT
when it performs the offset correction.
RxD after glitch filter on channel
B
RAGFB
—
This function outputs data received on channel
B RxD (RXD_BG2/RXD2_485 pin) after glitch
filter processing.
Dynamic slot start on channel B
DSSB
Rising edge of the signal
The CC strobes every dynamic slot start on
channel B.
Start of frame on channel B
SFB
Rising edge of the signal
The CC strobes every receive frame start on
channel B.
Received syntactically correct
an semantically valid frame
indication on channel B
RCFB
Rising edge of the signal
The CC indicates every reception of a
syntactically correct and semantically valid
frame on channel B after 11 FlexRay bus bits
measured from the received frame end
sequence.