
Device Specification
Semiconductor Group 7-31
Timer 0/
Timer 1
TCON
TH0
TH1
TL0
TL1
TMOD
Timer Control Register
Timer 0, High Byte
Timer 1, High Byte
Timer 0, Low Byte
Timer 1, Low Byte
Timer Mode Register
88
H
1)
8C
H
8D
H
8A
H
8B
H
89
H
00
H
00
H
00
H
00
H
00
H
00
H
Watchdog
IEN0
2)
IEN1
2)
IP0
2)
IP1
2)
WDTREL
Interrupt Enable Register 0
Interrupt Enable Register 1
Interrupt Priority Register 0
Interrupt Priority Register 1
Watchdog Timer Reload Reg.
0A8
H
1)
0B8
H
1)
0A9
H
0B9
H
86
H
00
H
00
H
00
H
XX00 0000B
3)
00
H
1)
Bit-addressable special function registers
2)
This special function register is listed repeatedly since some bits of it also belong to other functional blocks.
3)
X means that the value is indeterminate and the location is reserved
Table 3
Special Function Registers - Functional Blocks (cont’d)
Block Symbol Name Address Contents
after Reset
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