MITSUBISHI MICROCOMPUTERS
M37207MF-XXXSP/FP, M37207M8-XXXSP
M37207EFSP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
and ON-SCREEN DISPLAY CONTROLLER
40
PWM1 register (Address : 00D1
16
)
8
8-bit PWM circuit
PN
3
P6
0
PW2
D6
0
PWM0
P6
1
PW3
D6
1
PWM1
P6
2
PW4
D6
2
PWM2
P6
3
PW5
D6
3
PWM3
P6
4
PW6
D6
4
PWM4
P6
5
PW7
D6
5
PWM5
Inside of is as same contents with
the others.
Selection gate :
Connected to black
side at reset.
Pass gate
PW : PWM output countrol register 1
PN : PWM output control register 2
P6
6
PN0
D6
6
PWM6
P6
7
PN1
D6
7
PWM7
D6 : Port P6 direction register
D4 : port P4 direction register
S
RDY1
SIC3
D4
7
PWM8
P4
7
SIC
7
P4
6
SIC6
D4
6
PWM9
SIC : Serial I/O control register
PWM2 register (Address : 00D2
16
)
PWM3 register (Address : 00D3
16
)
PWM4 register (Address : 00D4
16
)
PWM5 register (Address : 00F6
16
)
PWM6 register (Address : 00F7
16
)
PWM7 register (Address : 00F8
16
)
PWM8 register (Address : 00F9
16
)
PWM9 register (Address : 00FA
16
)
D-A/AD3
DA-H register
(Address : 00CE
16
)
1/2
X
IN
Timing
generator
for PWM
PWM0 register
(Address : 00D0
16
)
14-bit PWM circuit
PN2
PN4
PW1
D-A
MSB
DA latch (14-bits)
LSB
8
7
14
6
PW0
DA-L register
(Address : 00CF
16
)
A-D
MSB
b7
Data bus
PWM0 latch
LSB
b5 b0
b0b7
b0
b7
LSB
Table 5. Relation Between the Low-order 6-bit Data and High-
level Area Increase Interval
Area Longer by τ than That of Other tm (m = 0 to 63)
Nothing
m = 32
m = 16, 48
m = 8, 24, 40, 56
m = 4, 12, 20, 28, 36, 44, 52, 60
m =
2, 6, 10, 14, 18, 22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62
m = 1, 3, 5, 7, ................................. 57, 59, 61, 63
Low-order 6 bits of Data
0 0 0 0 0 0
0 0 0 0 0 1
0 0 0 0 1 0
0 0 0 1 0 0
0 0 1 0 0 0
0 1 0 0 0 0
1 0 0 0 0 0
Fig. 35. PWM Block Diagram
