HD6432646 Hitachi, HD6432646 Datasheet - Page 656
HD6432646
Manufacturer Part Number
HD6432646
Description
(HD64F264x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432646.pdf
(1155 pages)
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17.2.7
Bit
Initial value
Read/Write
There are four 16-bit read/write PWBFR1 registers (PWBFR1A, 1C, 1E, 1G). When a PWCYR1
compare match occurs, data is transferred from PWBFR1A to PWDTR1A, from PWBFR1C to
PWDTR1C, from PWBFR1E to PWDTR1E, and from PWBFR1G to PWDTR1G.
PWBFR1 is initialized to H'EC00 upon reset, and in standby mode, watch mode, subactive mode,
subsleep mode, and module stop mode.
Bits 15 to 13—Reserved: These bits are always read as 1 and cannot be modified.
Bit 12—Output Terminal Select (OTS): Bit 12 is the data transferred to bit 12 of PWDTR1.
Bits 11 and 10—Reserved: These bits are always read as 1 and cannot be modified.
Bits 9 to 0—Duty (DT): Bits 9 to 0 comprise the data transferred to bits 9 to 0 in PWDTR1.
17.2.8
Bit
Initial value
Read/Write
There are eight PWDTR2 registers (PWDTR2A to PWDTR2H). PWDTR2A is used for output
PWM2A, PWDTR2B for output PWM2B, PWDTR2C for output PWM2C, PWDTR2D for output
PWM2D, PWDTR2E for output PWM2E, PWDTR2F for output PWM2F, PWDTR2G for output
PWM2G, and PWDTR2H for output PWM2H.
PWDTR2 cannot be read or written to directly. When a PWCYR2 compare match occurs, data is
transferred from buffer register 2 (PWBFR2) to PWDTR2.
PWDTR2 is initialized to H'EC00 when the counter start bit (CST) in PWCR2 is cleared to 0, and
also upon reset and in standby mode, watch mode, subactive mode, subsleep mode, and module
stop mode.
622
PWM Buffer Registers 1A, 1C, 1E, 1G (PWBFR1A, 1C, 1E, 1G)
PWM Duty Registers 2A to 2H (PWDTR2A to PWDTR2H)
15
—
—
15
—
—
1
1
14
—
—
14
—
—
1
1
13
— OTS —
— R/W —
13
—
—
1
1
12
12
—
—
0
0
11
11
—
—
1
1
10
— DT9 DT8 DT7 DT6 DT5 DT4 DT3 DT2 DT1 DT0
— R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
10
— DT9 DT8 DT7 DT6 DT5 DT4 DT3 DT2 DT1 DT0
—
1
1
—
9
0
9
0
—
8
0
8
0
—
7
0
7
0
—
6
0
6
0
—
5
0
5
0
—
4
0
4
0
—
3
0
3
0
—
2
0
2
0
—
1
0
1
0
—
0
0
0
0
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