M37221 Mitsubishi, M37221 Datasheet - Page 29

• Manufacturer Part Number: M37221
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
• Manufacturer: Mitsubishi

Table 6. Relation between the low-order 6-bit data and high-level
Fig. 25. PWM block diagram
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
area increase interval
Inside of
with the others.
LSB
P0 : Port P0 register
D0 : Port P0 direction register
PW : PWM output control register 1
PN : PWM output control register 2
Note : The DA-L register also functions as the low-order 6 bits of the DA latch.
Area longer by than that of other t
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
Selection gate :
Pass gate :
Connected to
black colored
side when reset.
is as same contents
Data bus
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
m
(m = 0 to 63)
(Address : 00CE
(Address : 00D0
X
PWM1 register (Address : 00D1
PWM2 register (Address : 00D2
PWM3 register (Address : 00D3
PWM4 register (Address : 00D4
PWM5 register (Address : 00F6
PWM register
IN
DA-H register
b7
MSB
b7
DA latch
(14 bits)
8
8
8-bit PWM circuit
1/2
16
PW0
)
16
)
6
M37221EF-XXXSP,M37221EFSP
14-bit PWM circuit
PWM timing
generating
16
14
16
16
16
16
circuit
)
)
)
)
)
b0
b0
with ON-SCREEN DISPLAY CONTROLLER
PN3
6
PN2
PW2
PW3
PW4
PW5
PW7
PW6
P0
P0
P0
P0
P0
P0
DA-L register (Note)
5
0
2
3
4
(Address : 00CF
1
LSB
D0
D0
D0
D0
PW1
D0
D0
PN4
1
4
2
3
5
0
16
)
DA
PWM0
PWM1
PWM2
PWM3
PWM4
PWM5
D-A
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