User Manual
26
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
Device Register Types
5
Device Register Types
The following register types are used within this device. List see in
.
Table 5
Register Types
Bit-type
Meaning
Read
access
from SW
(bus)
Write
access
from SW
(bus)
Bit-set
by HW
Bit-clear
by HW
Bit-clear
from SW
r
read-only of HW signal from
SW , no register
yes
n/a
n/a
n/a
n/a
rc
bit set by HW, sticky, clear on
read by SW
yes
no
yes
no
yes, by
software read
rh
rw
read-write from SW, not
influenced by HW
yes
yes
no
no
(covered by
SW write)
rwh
written by HW, read by SW,
cleared by writing 0
yes
no
yes
yes
yes, by
software
write 0
rwh1
write-only from SW. Set by SW
for 1 cycle, then reset by HW
no
yes
no
yes
no
rwhir
rw from SW, can be reset by
HW
yes
yes
no
yes
(covered by
SW write)
rwhis
rw from SW, can be set by HW yes
yes
yes
no
(covered by
SW write)
rwhrs
read-write by SW, HW can
also set and reset
yes
yes
yes
yes
(covered by
SW write)
rwhxr
interrupt register, level
sensitive. Set by HW, sticky,
read-write from SW, reset
from SW only via external bit
and only when HW is 0 again
(HW level has priority)
yes
yes
yes -
by level
no
yes, by
software
write 1 to
external
register-clear-
bit
rwhxre
interrupt register, rising edge
sensitive. Set by HW on rising
edge, sticky, read-write from
SW, reset from SW only via
external bit
yes
yes
yes -
by rising
edge
no
yes, by
software
write 1 to
external
register-clear-
bit
rwpt
read-only in user mode (only
writable in testmode and by
firmware)
yes
(not in
user
mode)
no
no
(not in user
mode)