K60P100M100SF2RM Datasheet, PDF (508/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

EWM Signal Descriptions
22.2 EWM Signal Descriptions
The EWM has two external signals, as shown in the following table.
Table 22-1. EWM Signal Descriptions
Signal
Description
I/O
EWM_in
EWM input for safety status of external safety circuits. The polarity of
I
EWM_in is programmable using the CTRL[ASSIN] bit. The default polarity
is active-low.
EWM_out
EWM reset out signal
O
22.3 Memory Map/Register Definition
This section contains the module memory map and registers.
Absolute
address
(hex)
EWM memory map
Register name
Width
(in bits)
Access
Reset value
4006_1000 Control Register (EWM_CTRL)
8
R/W
00h
4006_1001 Service Register (EWM_SERV)
W
8
(always
reads
00h
zero)
4006_1002 Compare Low Register (EWM_CMPL)
8
R/W
00h
4006_1003 Compare High Register (EWM_CMPH)
8
R/W
FFh
Section/
page
22.3.1/
508
22.3.2/
509
22.3.3/
510
22.3.4/
510
22.3.1 Control Register (EWM_CTRL)
The CTRL register is cleared by any reset.
NOTE
This register can be written only once after a CPU reset.
Writing this register more than once, generates a bus transfer
error.
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
508
Freescale Semiconductor, Inc.