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M37902FCCHP, M37902FGCHP, M37902FJCHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
90
Fig. 92 Microcomputer internal register
’
s status at reset (1)
0 0
0
0
0
0
0 0
0
0
0
(04
16
)
···
Address
00
16
(05
16
)
···
(08
16
)
···
(09
16
)
···
00
16
(0C
16
)
···
(0D
16
)
···
00
16
(10
16
)
···
(11
16
)
···
(14
16
)
···
(56
16
)
···
00
16
(57
16
)
···
00
16
(58
16
)
···
00
16
(59
16
)
···
00
16
(5A
16
)
···
00
16
(18
16
)
···
00
16
(19
16
)
···
00
16
Notes 1:
The contents of the other registers and RAM are undefined at reset and must be initialized by software.
2:
While Vss level voltage is applied to pin MD0, these bits are
“
0
”
. While Vcc level voltage is applied to pin MD0, on the other hand, these bits are
“
1
”
.
3:
At power-on reset, these bits are clear to
“
0
”
. At hardware or software reset, on the other hand, these bits retain the value just before reset.
0
0 0 0
0
(1E
16
)
···
0
0 0 0
0 1 1
(1F
16
)
···
1
0
0
0 0 0
(34
16
)
···
1
0
0
0 0 0
(3C
16
)
···
0
0 0 0
0
0 1 0
(35
16
)
···
0
0 0 0
0
0 1 0
(3D
16
)
···
0
0
0 0 0
(42
16
)
···
0 0
(45
16
)
···
(30
16
)
···
00
16
(38
16
)
···
00
16
0
(44
16
)
···
(40
16
)
···
00
16
0
0
0
0 0 0
(5B
16
)
···
1
0 0 0
(Note 2)
0
(Note 2)
0
(5E
16
)
···
(5F
16
)
···
(60
16
)
···
Address
(Note 3)
0
1
0
0
0 0
0 0 0 0
0
FFF
16
(61
16
)
···
(62
16
)
···
(63
16
)
···
(66
16
)
···
(67
16
)
···
(6E
16
)
···
(6F
16
)
···
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
(72
16
)
···
(73
16
)
···
(74
16
)
···
(77
16
)
···
(78
16
)
···
(79
16
)
···
(7A
16
)
···
0
0 0
0 0 0
(7C
16
)
···
0 0 0
(7E
16
)
···
(70
16
)
···
(71
16
)
···
(75
16
)
···
(76
16
)
···
0
0 0
0 0 0
(7D
16
)
···
(7B
16
)
···
(7F
16
)
···
0
0 0
00
16
0 0
0 0
(Note 2)
0
0
0 0
(Note 3)
0 0 0 0
00
16
00
16
(Note 3)
(Note 3)
0
0
0
0
0
0 0 0
(5C
16
)
···
0
0
0
0 0 0
(5D
16
)
···
00
16
00
16
00
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
Timer A0 mode register
Timer A1 mode register
Timer A2 mode register
Timer A3 mode register
Timer A4 mode register
A-D control register 0
A-D control register 1
UART 0 Transmit/Receive control register 0
UART 1 Transmit/Receive control register 0
UART 0 Transmit/Receive control register 1
UART 1 Transmit/Receive control register 1
One-shot start register
Timer A clock frequency select register
Port P10 direction register
Port P10 direction register
UART 0 Transmit/Receive mode register
UART 1 Transmit/Receive mode register
Up-down register
Count start register
Timer B0 mode register
Timer B1 mode register
Timer B2 mode register
Processor mode register 0
Processor mode register 1
Watchdog timer
Watchdog timer frequency select register
Debug control register 1
Debug control register 0
Particular function select register 1
Particular function select register 0
INT
2
interrupt control register
INT
3
interrupt control register
INT
4
interrupt control register
UART 0 receive interrupt control register
UART 1 transmit interrupt control register
UART 1 receive interrupt control register
Timer A2 interrupt control register
Timer A3 interrupt control register
Timer A4 interrupt control register
Timer B0 interrupt control register
Timer B2 interrupt control register
INT
1
interrupt control register
A-D conversion interrupt control register
UART 0 transmit interrupt control register
Timer A0 interrupt control register
Timer A1 interrupt control register
INT
0
interrupt control register
Timer B1 interrupt control register