Datasheet

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26.3.2.3.15 GTU Configuration Register 8 (GTUC8)
The communication controller accepts modifications of the register in DEFAULT_CONFIG or CONFIG
state only.
Figure 26-142 and Table 26-127 illustrate this register.
Figure 26-142. GTU Configuration Register 8 (GTUC8) [offset_CC = BCh]
31 29 28 16
Reserved NMS*
R-0 R/W-0
15 6 5 0
Reserved MSL*
R-0 R/W-2h
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset; *These bits can be updated in DEFAULT_CONFIG or CONFIG state
only
Table 26-127. GTU Configuration Register 8 (GTUC8) Field Descriptions
Bit Field Value Description
31-29 Reserved 0 Read returns 0. Writes have no effect.
28-16 NMS 0-1F32h Number of minislots. These bits configure the number of minislots in the dynamic segment of a
cycle. The number of minislots must be identical in all nodes of a cluster.
15-6 Reserved 0 Read returns 0. Writes have no effect.
5-0 MSL 2h-3Fh MT Minislot length (in macroticks). These bits configure the duration of a minislot. The minislot length
must be identical in all nodes of a cluster.
26.3.2.3.16 GTU Configuration Register 9 (GTUC9)
The communication controller accepts modifications of the register in DEFAULT_CONFIG or CONFIG
state only.
Figure 26-143 and Table 26-128 illustrate this register.
Figure 26-143. GTU Configuration Register 9 (GTUC9) [offset_CC = C0h]
31 18 17 16
Reserved DSI*
R-0 R/W-0
15 13 12 8 7 6 5 0
Reserved MAPO* Reserved APO*
R-0 R/W-1h R-0 R/W-1h
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset; *These bits can be updated in DEFAULT_CONFIG or CONFIG state
only
Table 26-128. GTU Configuration Register 9 (GTUC9) Field Descriptions
Bit Field Value Description
31-18 Reserved 0 Read returns 0. Writes have no effect.
17-16 DSI 0-2h Dynamic slot idle phase (in minislots). The duration of the dynamic slot idle phase has to be
greater or equal than the idle detection time. Must be identical in all nodes of a cluster.
15-13 Reserved 0 Read returns 0. Writes have no effect.
12-8 MAPO 1h-1Fh MT Minislot action point offset (in macroticks). These bits configure the minislot action point offset
within the minislots of the dynamic segment. The minislot action point offset must be identical in all
nodes of a cluster.
7-6 Reserved 0 Read returns 0. Writes have no effect.
5-0 APO 1h-3Fh MT Action point offset (in macroticks). These bits configure the action point offset within static slots
and symbol window. The action point offset must be identical in all nodes of a cluster.
1314
FlexRay Module SPNU563–May 2014
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