
13
MITSUBISHI MICROCOMPUTERS
M37753FFCFP
M37753FFCHP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
SHINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
Fig. 5 Particular function select register 0 bit configuration
Notes 1 :
After the expansion function select bit (bit 5 of particular function select register 1) is “1”, bits 1, 5 and 6 can be rewritten.
2 :
To set bits 1 to 4, continuous-twice-write operation must be performed to address 6C
16
.
3 :
When the signal output disable select bit is “1” and bit 5 is “1”, the E pin always outputs “L” independent of bit 6’s contents
in execution of WIT or STP instruction.
7
6
5
4
3
2
1
0
0
Particular function select register 0
External clock input select bit
(Notes 1, 2)
0 : Actuated oscillation circuit; connecting resonator
1 : Stopped oscillation circuit; inputting externally generated clock
Stand
(Note 1)
; whe
or mic
0 : Pins P0 to P3 are for external data bus.
1 : Pins P0 to P3 are for port output or port input.
Standby state select bit 1
(Notes 1, 3)
; in execution of WIT or STP instruction
0 : “H” or “L” output for pin E
1 : “H” output for pin E
Memory allocation select bits 2, 1, 0
(Note 2)
0 0 0 : ROM 120 Kbytes, RAM 3968 bytes
(ROM : 001000
16
to 1EFFFF
16
, RAM : 000080
16
to 000FFF
16
)
0 0 1 : ROM 92 Kbytes, RAM 3968 bytes
(ROM:008000
16
to 01EFFF
16
, RAM:000080
16
to 000FFF
16
)
0 1 0 : ROM 60 Kbytes, RAM 3072 bytes
(ROM : 001000
16
to 00FFFF
16
, RAM : 000080
16
to 000C7F
16
)
0 1 1 : ROM 56 Kbytes, RAM 3072 bytes
(ROM:002000
16
to 00FFFF
16
, RAM:000080
16
to 000C7F
16
)
1 0 0 : ROM 48 Kbytes, RAM 2048 bytes
(ROM : 004000
16
to 00FFFF
16
, RAM : 000080
16
to 00087F
16
)
1 0 1 : ROM 32 Kbytes, RAM 2048 bytes
(ROM:008000
16
to 00FFFF
16
, RAM:000080
16
to 00087F
16
)
1 1 0 : ROM 60 Kbytes, RAM 2048 bytes
(ROM : 001000
16
to 00FFFF
16
, RAM : 000080
16
to 00087F
16
)
1 1 1 : ROM 56 Kbytes, RAM 2048 bytes
(ROM:002000
16
to 00FFFF
16
, RAM:000080
16
to 00087F
16
)
Fix to “0”
STP return select bit
0 : Watchdog timer is used when returning from Stop mode
1 : Watchdog timer is not used when returning from Stop mode; the microcomputer returns at once.
Address
6C
16