MC45 Hardware Interface Description
P R E L I M I N A R Y
MC45_HD_01_V00.02a
Page 38 of 90
12.08.2002
Figure 10 illustrates the CFUN=5 mode, which resets the /CTS signal 2 seconds after the
last character was sent or received. The UART is kept active for another 5 ms before power
saving begins.
2.12 s
5 ms
2 s
5 ms
5 ms
2.12 s
2.12 s
/CTS
AT interface disabled
AT interface enabled
1 character
st
Last character
Beginning of power saving
Paging message
Paging message
Paging message
Paging message
20
ms
20
ms
Figure 10: Beginning of power saving if CFUN=5