HD404369 Datasheet, PDF (64/117 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer

HD404369 Series
Timer write register B (upper digit) (TWBU: $00B)
Bit
Initial value
Read/Write
Bit name
3
2
1
0
Undefined Undefined Undefined Undefined
W
W
W
W
TWBU3 TWBU2 TWBU1 TWBU0
Figure 43 Timer Write Register B Upper Digit (TWBU)
Timer read register B (lower digit) (TRBL: $00A)
Bit
Initial value
Read/Write
Bit name
3
2
1
0
Undefined Undefined Undefined Undefined
R
R
R
R
TRBL3 TRBL2 TRBL1 TRBL0
Figure 44 Timer Read Register B Lower Digit (TRBL)
Timer read register B (upper digit) (TRBU: $00B)
Bit
Initial value
Read/Write
Bit name
3
2
1
0
Undefined Undefined Undefined Undefined
R
R
R
R
TRBU3 TRBU2 TRBU1 TRBU0
Figure 45 Timer Read Register B Upper Digit (TRBU)
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