Z8F082ASH020SC Datasheet, PDF (101/244 Pages) Zilog, Inc. – Z8 Encore XP-R F08xA Series with eXtended Peripherals

Z8 Encore! XP^® F08xA Series
Product Specification
83
Caution: ^{The 24-bit WDT Reload Value must not be set to a value less than 000004H.}
Table 57. Watch-Dog Timer Reload Upper Byte Register (WDTU)
BITS
7
6
5
4
3
2
1
FIELD
WDTU
RESET
1
1
1
1
1
1
1
R/W
R/W*
R/W*
R/W*
R/W*
R/W*
R/W*
R/W*
ADDR
FF1H
R/W* - Read returns the current WDT count value. Write sets the appropriate Reload Value.
0
1
R/W*
WDTU—WDT Reload Upper Byte
Most significant byte (MSB), Bits[23:16], of the 24-bit WDT reload value.
Table 58. Watch-Dog Timer Reload High Byte Register (WDTH)
BITS
7
6
5
4
3
2
1
FIELD
WDTH
RESET
1
1
1
1
1
1
1
R/W
R/W*
R/W*
R/W*
R/W*
R/W*
R/W*
R/W*
ADDR
FF2H
R/W* - Read returns the current WDT count value. Write sets the appropriate Reload Value.
WDTH—WDT Reload High Byte
Middle byte, Bits[15:8], of the 24-bit WDT reload value.
Table 59. Watch-Dog Timer Reload Low Byte Register (WDTL)
BITS
7
6
5
4
3
2
1
FIELD
WDTL
RESET
1
1
1
1
1
1
1
R/W
R/W*
R/W*
R/W*
R/W*
R/W*
R/W*
R/W*
ADDR
FF3H
R/W* - Read returns the current WDT count value. Write sets the appropriate Reload Value.
WDTL—WDT Reload Low
Least significant byte (LSB), Bits[7:0], of the 24-bit WDT reload value.
0
1
R/W*
0
1
R/W*
PS024705-0405
PRELIMINARY
Watch-Dog Timer