W93910 Datasheet, PDF (16/35 Pages) Winbond – ERMES PAGING DECODER

W93910
OPTION
PAEN, GPAEN
0
1
FUNCTION
PA5−PA0, GPA5−GPA0
Don't care
Enable
Table 11-2. Paging area setting
REMOTE PROGRAMMING
The W93910 provides remote programming addresses including initial address, paging area, zone
code, and country code to support the remote programming function. These option bits are listed in
Table 12. These temporary addresses can be programmed during the initial setting or modified by the
air message. While receiving the remote programming address message, W93910 will automatic
update the internal remote programming addresses and also pass the programming message to µC
through MDATA pin. The data should be stored for re-initialization purpose. Please refer to Summary of
Data Output Format. If the remote programming data is less than 18 bits, the dummy "0" is filled in the
other low bits of rd17−rd0. For the first time initialization, all the option bits should be "0" including the
RPI. The RPI is the remote programming index, which can be read out from MDW while receiving the
remote programming message.
OPTION BIT
FUNCTION
RPIA17−RPIA0
Initial Address
RPPA5−RPPA0
Paging Area
RPZC2−RPZC0
Zone Code
RPCC6−RPCC0
Country Code
RPOP2−RPOP0
Operator Code
RPI
Remote Programming Index
Table 12. Remote programming register
SYSTEM INFORMATION
By setting the SIEN option bit to 1, the system information can also be read out from TXDATA pin. After
192 option bits setting, if the µC decides to read out the received system information, the µC needs to
send 31 clocks to TXCLK pin. The first clock pulse will switch TXDATA pin from input to output, and the
last clock pulse will disable this function. At the falling edge of the each clock pulse except the first and
last clock one, the system information (batch no, country code, operator code, cycle no., hour) can be
read out from the TXDATA pin. The best timing to read out the system information is right after PLEN
falling edge. The format and timing are shown in Figure 10. This function is disabled if SIEN is set to 0.
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