參數(shù)資料
型號: M3720-1
廠商: Electronic Theatre Controls, Inc.
英文描述: 1 KEY 1 SOUND
中文描述: 1鍵1聲
文件頁數(shù): 75/121頁
文件大小: 1907K
代理商: M3720-1
MITSUBISHI MICROCOMPUTERS
M37207MF-XXXSP/FP, M37207M8-XXXSP
M37207EFSP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
and ON-SCREEN DISPLAY CONTROLLER
75
Power source voltage 0 V
Reset input voltage 0 V
4.5 V
0.6 V
Poweron
Vcc
RESET
Vss
Microcomputer
1
5
4
3
0.1
μ
F
M51953AL
RESET CIRCUIT
When the oscillation of a quartz-crystal oscillator or a ceramic reso-
______
RESET pin at LOW for 2 μs or more, then return is to HIGH. Then, as
shown in Figure 75, reset is released and the program starts from
the address formed by using the content of address FFFF
16
as the
high-order address and the content of the address FFFE
16
as the
low-order address. The internal state of microcomputer at reset are
shown in Figure 75.
An example of the reset circuit is shown in Figure 74.
The reset input voltage must be kept 0.6 V or less until the power
source voltage surpasses 4.5 V.
Fig. 74. Example of Reset Circuit
Fig. 75. Reset Sequence
X
IN
φ
RESET
Internal RESET
SYNC
Address
Data
32768 count of X
IN
clock cycle (Note 3)
Reset address from the vector table
01, S
01, S-1 01, S-2
FFFE
FFFF
AD
H
,
AD
L
AD
L
AD
H
Notes 1
:
f(X
IN
) and f(
φ
) are in the relation : f(X
IN
) = 2·f (
φ
).
2
A question mark () indicates an undefined state that
depends on the previous state.
3
Immediately after a reset, timer 3 and timer 4 are
connected by hardware. At this time, “FF
16
” is set
in timer 3 and “07
16
” is set to timer 4. Timer 3 counts down
with f(X
IN
)/16, and reset state is released by the timer 4
overflow signal.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M3720-10 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1 KEY 1 SOUND
M3720-2 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1 KEY 1 SOUND
M3720-3 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1 KEY 1 SOUND
M3720-4 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1 KEY 1 SOUND
M3720-5 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1 KEY 1 SOUND