63
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
MITSUBISHI MICROCOMPUTERS
M37754M8C-XXXGP, M37754M8C-XXXHP
M37754S4CGP, M37754S4CHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Fig. 76 Microcomputer internal registers status after reset
(0416)
Address
Port P0 direction register
0
0000
0016
(0516)
Port P1 direction register
(0816)
Port P2 direction register
0000
(0916)
Port P3 direction register
0
000
(1516)
Port P9 direction register
0016
(0C16)
Port P4 direction register
0016
(0D16)
Port P5 direction register
0016
(1016)
Port P6 direction register
0016
(1116)
Port P7 direction register
0016
(1416)
Port P8 direction register
0016
(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
(1816)
Port P10 direction register
0016
(1916)
Port P11 direction register
0016
0
00
0
000
(1D16)
Pulse output data register 0
0
000
0
???
(1E16)
A-D control register 0
0
000
0
011
(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
000
(4516)
Timer A write register
(1A16)
Waveform output mode register
0016
(1C16)
Pulse output data register 1
0016
(3016)
UART 0 Transmit/Receive mode register
0016
(3816)
UART 1 Transmit/Receive mode register
0016
0
000
0
000
(4416)
Up-down register
(4016)
Count start register
0016
0
01
0
000
(5B16)
Timer B0 mode register
0
01
0
000
(5C16)
Timer B1 mode register
0
01
0
000
(5D16)
Timer B2 mode register
0
000
0
000
(5E16)
Processor mode register 0
(5F16)
Processor mode register 1
0016
(6016)
Address
Watchdog timer
00 0 0 0000
00
FFF16
(6116)
Watchdog timer frequency select register
(6216)
Chip select control register
000
(6316)
Chip select area register
(6D16)
Particular function select register 1
(6416)
Comparator function select register
(6616)
Comparator result register
(6816)
D-A register 0
(6A16)
D-A register 1
(6C16)
Particular function select register 0
INT2 interrupt control register
Processor status register PS
0016
Program bank register PG
Contents of FFFF16
Program counter PCH
Contents of FFFE16
Program counter PCL
000016
(6E16)
INT4 interrupt control register
(6F16)
INT3 interrupt control register
0
00
000
?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
0
0 0
000
(7C16)
Timer B2 interrupt control register
000
(7E16)
INT1 interrupt control register
(7016)
A-D interrupt control register
(7116)
UART 0 transmit interrupt control register
(7516)
Timer A0 interrupt control register
(7616)
Timer A1 interrupt control register
0
0 0
000
(7D16)
INT0 interrupt control register
(7B16)
Timer B1 interrupt control register
Direct page register DPR
00 0
(7F16)
0
00
1??
0
00
??
0
00
Data bank register DT
Contents of other registers and RAM are not initiallzed and must be in-
itiallzed by software.
Note : Bit 0 of chip select control register (address 6216) becomes “0” when CNVss pin level is “L”; that bit becomes “1” when the pin level is “H”.