TC1796
System Units (Vol. 1 of 2)
System Control Unit
User’s Manual 5-59 V2.0, 2007-07
SCU, V2.0
5.10.3 Emergency Stop Register
The Emergency Stop Register SCU_EMSR contains control and status bits/flags of the
emergency stop input logic.
SCU_EMSR
SCU Emergency Stop Register (F0000044
H
) Reset Value: 0000 0000
H
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0EMSFM 0
EMS
F
rw rrh
1514131211109876543210
0
EN
ON
MO
DE
POL
rrwrwrw
Field Bits Type Description
POL 0rwInput Polarity
This bit determines the polarity of the emergency
input line HWCFG1.
0
B
HWCFG1 is high active.
1
B
HWCFG1 is low active.
MODE 1rwMode Selection
This bit determines the operating mode of the
EMGSTOP signal.
0
B
Synchronous mode selected; EMGSTOP is
derived from the state of flag EMSF.
1
B
Asynchronous mode selected; EMGSTOP is
directly derived from the state of the input signal
HWCFG1.
ENON 2rwEnable ON
This bit enables the (hardware) setting of flag EMSF
by an inactive-to-active level transition of input signal
HWCFG1.
0
B
Setting of EMSF by hardware is disabled.
1
B
Setting of EMSF by hardware is enabled.
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