W93910 Datasheet, PDF (26/35 Pages) Winbond – ERMES PAGING DECODER

W93910
ain3− 0 of CMW
0001
0010
0100
1000
0111
rd17−rd0 definition in MDW
Programmable function
RIA17−RIA0
Initial Address
RPA5−RPA0 + 12 dummy '"0"
Paging Area
RZC3 + RCC7 + ROP3 + 5 dummy "0"
OPID
SM5 + HNL3 + 12 dummy "0"
Home receiver battery saving
SM5 + ENL3 + 12 dummy "0"
External receiver battery saving
Table 29. Remote programming MDW format only
f1− f0
00
Function description
Add RIA, RPA, ROPID or replace SM
01
Remove RIA, RIA, ROPID
10
Restore SM, ENL, HNL to Table 1
11
Reserve
AIW Definition
Table 30. Remote programming MDW format only
AIW
b7
b6
b5
b4
b3
b2
b1
b0
byte3
0
1
0
byte2
lc15
lc14
lc13
byte1
lc7
lc6
lc5
cs4
cs3
cs2
lc12
lc11
lc10
lc4
lc3
lc2
cs1
cs0
lc9
lc8
lc1
lc0
Table 31. AIW format
The AIW is only available for long message (cm3−cm0 = 1000,1001,1101,1110) or changing character
set (cm3−cm0 = 1111), otherwise it's absent. The cs4−0 indicate character set and lc15−lc0 indicate link
counter. The different formats of AIW for the four different types of long message and changing
character set are listed in Summary of Data Output Format.
Each long message is divided into many submessages. The first submessage (cm3−cm0 = 1000 or
1110) must be transmitted first, then other submessages follow in sequence. Each submessage has its
own link counter lc15−lc0, which indicates how many message bits remain to be transmitted. The ter
flag is defined to indicate the end of the long message as shown in Table 28. When ter flag is 1, it
means the long message is completed. Otherwise, it means there are still some other submessages in
the coming signal.
For a long message, the W93910 will store all the received submessages including the EOM and filler
bits in MDW and then send to UC. The filler bits and EOM are the last message part of MDW group,
MDW1, MDW2...MDWn, and need to be removed to construct the long message. The following
equation shows how many message bits of the previous MDW group need to be truncated. The long
message can then be reproduced by connecting all the submessages except the truncated parts.
- 26 -