THREE-PHASE WAVEFORM MODE
10.2 Block description
Timer A0 register (Addresses 4716, 4616)
Timer A1 register (Addresses 4916, 4816)
Timer A2 register (Addresses 4B16, 4A16)
(b15)
b7
(b8)
b0
b7
b0
Bit
Function
Any value in the range from “000016” to “FFFF16” can be set.
At reset R/W
15 to 0
Undefined WO
Assuming that the set value = n, the “H” level width of the one-shot pulse is expressed
n
fi.
as follows :
fi: Frequency of count source
Note: Use the MOVM or STA(STAD) instruction for writing to this register.
Writing to this register must be performed in a unit of 16 bits.
Timer A0
Timer A1
Timer A2
1
1
1
register (Addresses D116, D016
register (Addresses D316, D216
register (Addresses D516, D416
)
)
)
(b8)
b0 b7
(b15)
b7
b0
Bit
Function
Any value in the range from 000016 to FFFF16 can be set.
At reset R/W
Undefined WO
15 to 0
Assuming that the set value = n, the “H” level width of the one-shot pulse is expressed
as follows: n/f
: Frequency of a count source
i
.
f
i
Notes 1: Use the MOVM or STA (STAD) instruction for writing to this register. Additionally, make sure writing to this register
must be performed in a unit of 16 bits.
2: This register is valid only in three-phase mode 1 of the three-phase waveform mode.
Fig. 10.2.11 Structures of timer A0/A1/A2 register and timer A0
10.2.8 Timer A3
1
/A1
1
/A2 register
1
Timer A3 is used to control the carrier’s period of the whole three-phase waveform and is used in the timer
mode.
Figure 10.2.12 shows the structure of the timer A3 mode register (the three-phase waveform mode).
b7 b6 b5 b4 b3 b2 b1 b0
Timer A3 mode register (Address 5916)
0 0 0 0 0 0
Bit
0
Bit name
Function
At reset R/W
0
0
0
0
0
0
0
RW
RW
RW
RW
RW
Fix these bits to “0000002” in the three-phase waveform mode.
1
2
3
4
5
RW
RW
See Table 7.2.3.
Count source select bits
6
7
0
RW
Fig. 10.2.12 Structure of timer A3 mode register (three-phase waveform mode)
7906 Group User’s Manual Rev.2.0
10-14
RENESAS [ RENESAS TECHNOLOGY CORP ]
