參數資料
型號： M37735S4BFP
廠商： Mitsubishi Electric Corporation
英文描述： 16-BIT CMOS MICROCOMPUTER
中文描述： 16位CMOS微機
文件頁數： 15/36頁
文件大?。?/td> 935K
代理商： M37735S4BFP
15
MITSUBISHI MICROCOMPUTERS
M37735S4BFP
16-BIT CMOS MICROCOMPUTER
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
RESET CIRCUIT
The microcomputer is released from the reset state when the
RESET
pin is returned to “H” level after holding it at “L” level with the power
source voltage at 5 V
±
10%. Program execution starts at the address
formed by setting address A
23
– A
16
to 00
16
, A
15
– A
8
to the contents
of address FFFF
16
, and A
7
– A
0
to the contents of address FFFE
16
.
Figure 13 shows an example of a reset circuit. If the stabilized clock
is input from the external to the main-clock oscillation circuit, the reset
_____
input voltage must be 0.9 V or less when the power source voltage
reaches 4.5 V. If a resonator/oscillator is connected to the main-clock
oscillation circuit, change the reset input voltage from “L” to “H” after
the main-clock oscillation is fully stabilized.
Figure 12 shows the status of the internal registers during reset.
Fig. 12 Microcomputer internal status during reset
00
16
Address
00
16
0 0 0 0
00
16
00
16
00
16
00
16
00
16
00
16
0
1 1
0 0
0 0
0
0
00
16
00
16
0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
1 0
0 0
0 0
1 0
0 0
0 0
1 0
1 0
00
16
0 0 0
0
0
00
16
00
16
00
16
00
16
00
16
00
16
0
0 0 1
0 0
0
0
0 0 1
0 0 1
0 0
0
0
0 0
0
0
0
00
16
(04
16
)
(05
16
)
(08
16
)
(09
16
)
(0C
16
)
(0D
16
)
(10
16
)
(11
16
)
(14
16
)
(1E
16
)
(1F
16
)
(30
16
)
(38
16
)
(34
16
)
(3C
16
)
(35
16
)
(3D
16
)
(40
16
)
(42
16
)
(44
16
)
(56
16
)
(57
16
)
(58
16
)
(59
16
)
(5A
16
)
(5B
16
)
(5C
16
)
(5D
16
)
(5E
16
)
(5F
16
)
Port P0 direction register
Port P1 direction register
Port P2 direction register
Port P3 direction register
Port P4 direction register
Port P5 direction register
Port P6 direction register
Port P7 direction register
Port P8 direction register
A-D control register 0
A-D control register 1
UART 0 transmit/receive mode register
UART 1 transmit/receive
control register 1
Count start flag
UART 1 transmit/receive mode register
UART 0 transmit/receive
control register 0
UART 1 transmit/receive
control register 0
UART 0 transmit/receive
control register 1
One- shot start flag
Up-down flag
Timer A0 mode register
Timer A1 mode register
Timer A2 mode register
Timer A3 mode register
Timer A4 mode register
Timer B0 mode register
Timer B1 mode register
Timer B2 mode register
Processor mode register 0
Processor mode register 1
Address
(60
16
)
(7F
16
)
(61
16
)
(6C
16
)
(6D
16
)
(6E
16
)
(6F
16
)
(70
16
)
(71
16
)
(72
16
)
(73
16
)
(74
16
)
(75
16
)
(76
16
)
(77
16
)
(78
16
)
(79
16
)
(7A
16
)
(7B
16
)
(7C
16
)
(7D
16
)
(7E
16
)
Watchdog timer register
Watchdog timer frequency selection flag
Oscillation circuit control register 0
Port function control register
Serial transmit control register
Oscillation circuit control register 1
A-D/UART2 trans./rece. interrupt control register
UART 0 transmission interrupt control register
UART 0 receive interruupt control register
UART 1 transmission interrupt control register
UART 1 receive interruupt control register
Timer A0 interrupt control register
Timer B2 interrupt control register
Timer A1 interrupt control register
Timer A2 interrupt control register
Timer A3 interrupt control register
Timer A4 interrupt control register
Timer B0 interrupt control register
Timer B1 interrupt control register
Processor status register (PS)
Program bank register (PG)
Program counter (PC
H
)
Program counter (PC
L
)
Direct page register (DPR)
Data bank register (DT)
INT
0
interrupt control register
INT
1
interrupt control register
INT
2
/key input interrupt control register
0
Contents of other registers and RAM are undefined during reset. Initialize them by software.
0
0
0
0 0 0 0
0
0 0 0
0 0 0
0 0 0
0 0 0
1
0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0
0
0
0
0 0
0
0
0
00
16
Content of FFFF
16
Content of FFFE
16
0000
16
FFF
16
0
0
0
0
0
0
00
16
00
16
(62
16
)
(64
16
)
(68
16
)
Waveform output mode register
UART2 transmit/receive mode register
UART2 transmit/receive control register 0
0
0
(69
16
)
UART2 transmit/receive control register 1
0 0
0
0 0
0
0
1
0
0 1 0
0
0
0 0 0
1
0
0 0
0
0 0
0 0 0
0
0
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