HD404669 Datasheet, PDF (67/142 Pages) Hitachi Semiconductor – Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit

HD404669 Series
Timer read register C (upper digit) (TRCU: $00F)
Bit
Initial value
Read/Write
Bit name
3
2
1
0
Undefined Undefined Undefined Undefined
R
R
R
R
TRCU3 TRCU2 TRCU1 TRCU0
Figure 48 Timer Read Register C Upper Digit (TRCU)
Timer D
Timer D Functions: Timer D has the following functions.
• Free-running/reload timer
• External event counter
• Timer output operation (toggle, low-level, high-level, and PWM outputs)
• Input capture timer
The block diagram for each operation mode of timer D is shown in figures 49(1) and 49(2).
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