73
M37906M4C-XXXFP, M37906M4C-XXXSP, M37906M4H-XXXFP
M37906M4H-XXXSP, M37906M6C-XXXFP, M37906M6C-XXXSP
M37906M8C-XXXFP, M37906M8C-XXXSP
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Som
e param
etric
lim
its are
subject
to change.
16-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Fig. 78 Microcomputer internal register’s status at reset (1)
00
0
Address
(0516)
Port P1 direction register
(0816)
Port P2 direction register
0016
(0D16)
Port P5 direction register
(1016)
Port P6 direction register
(1116)
Port P7 direction register
(5616)
Timer A0 mode register
0016
(5716)
Timer A1 mode register
0016
(5816)
Timer A2 mode register
0016
(5916)
Timer A3 mode register
0016
(5A16)
Timer A4 mode register
0016
Notes 1: The contents of the other registers and RAM are undefined at reset and must be initialized by software.
2: 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
000
0
(1E16)
A-D control register 0
0
0 0 0
0??
(1F16)
A-D control register 1
1
0
000
(3416)
UART 0 transmit/receive control register 0
1
0
000
(3C16)
UART 1 transmit/receive control register 0
0
000
0
010
(3516)
UART 0 transmit/receive control register 1
0
000
0
010
(3D16)
UART 1 transmit/receive control register 1
0
000
(4216)
One-shot start register 0
00
(4516)
Timer A clock frequency select register
(3016)
UART 0 transmit/receive mode register
0016
(3816)
UART 1 transmit/receive mode register
0016
0
(4416)
Up-down register 0
(4016)
Count start register 0
0016
0
0?
0
000
(5B16)
Timer B0 mode register
1
000
0
(5E16)
Processor mode register 0
(5F16)
Processor mode register 1
(6016)
Address
Watchdog timer
(Note 2)
0
1
00
0 0
0000
0
FFF16
(6116)
Watchdog timer frequency select register
(6216)
Particular function select register 0
(6316)
Particular function select register 1
(6616)
Debug control register 0
(6716)
Debug control register 1
D-A register 1
(6E16)
INT3 interrupt control register
(6F16)
INT4 interrupt control register
0000
?000
0000
(7216)
UART 0 receive interrupt control register
(7316)
UART 1 transmit interrupt control register
(7416)
UART 1 receive interrupt control register
(7716)
Timer A2 interrupt control register
(7816)
Timer A3 interrupt control register
(7916)
Timer A4 interrupt control register
(7A16)
Timer B0 interrupt control register
00
(7C16)
Timer B2 interrupt control register
(9816)
D-A register 0
(7016)
A-D conversion interrupt control register
(7116)
UART 0 transmit interrupt control register
(7516)
Timer A0 interrupt control register
(7616)
Timer A1 interrupt control register
(9616)
D-A control register
(7B16)
Timer B1 interrupt control register
(9916)
0016
00
(Note 2)
0016
(Note 2)
0
???
0000
0
0000
0
00
0
(4316)
One-shot start register 1
0
000
0
(4116)
Count start register 1
0000
0
000
0
1
0
0016
0
0?
0
000
(5C16)
Timer B1 mode register
0
0?
0
000
(5D16)
Timer B2 mode register
0