參數(shù)資料
型號(hào)： M37735S4B
廠商： Mitsubishi Electric Corporation
英文描述： Single Chip 16 Bits CMOS Microcomputer(16位單片機(jī))
中文描述： 單片微機(jī)16位的CMOS（16位單片機(jī)）
文件頁(yè)數(shù)： 5/36頁(yè)
文件大?。?/td> 935K
代理商： M37735S4B
5
MITSUBISHI MICROCOMPUTERS
M37735S4BFP
16-BIT CMOS MICROCOMPUTER
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
BASIC FUNCTION BLOCKS
The M37735S4BFP has the same functions as the
M37735MHBXXXFP except for the following:
(1) The memory map is different.
(2) The processor mode is different.
(3) The reset circuit is different.
(4) Pulse output port mode of timer A is available.
(5) The function of ROM area modification is not available.
Refer to the section on the M37735MHBXXXFP, except for above
(1)–(5).
MEMORY
The memory map is shown in Figure 1. The address space has a
capacity of 16 Mbytes and is allocated to addresses from 0
16
to
FFFFFF
16
. The address space is divided by 64-Kbyte unit called bank.
The banks are numbered from 0
16
to FF
16
.
However, banks 10
16
–FF
16
of the M37735S4BFP cannot be
accessed.
Built-in RAM and control registers for internal peripheral devices are
assigned to bank 0
16
.
Addresses FFD6
16
to FFFF
16
are the RESET and interrupt vector
addresses and contain the interrupt vectors. Use ROM for memory
of this address.
The 2048-byte area allocated to addresses from 80
16
to 87F
16
is the
built-in RAM. In addition to storing data, the RAM is used as stack
during a subroutine call or interrupts.
Peripheral devices such as I/O ports, A-D converter, serial I/O, timer,
and interrupt control registers are allocated to addresses from 0
16
to
7F
16
.
A 256-byte direct page area can be allocated anywhere in bank 0
16
by using the direct page register (DPR). In the direct page addressing
mode, the memory in the direct page area can be accessed with two
words. Hence program steps can be reduced.
Fig. 1 Memory map
A-D/UART2 trans./rece.
UART1 transmission
UART1 receive
Timer B2
Timer B1
Timer B0
Timer A4
Timer A3
Timer A2
Timer A1
Timer A0
INT
2
/Key input
INT
0
Watchdog timer
DBC
BRK instruction
Zero divide
RESET
Internal peripheral
devices
control registers
refer to Fig. 2 for
detail information
Interrupt vector table
000000
16
00FFFF
16
010000
16
01FFFF
16
Bank 0
16
Bank 1
16
FE0000
16
FEFFFF
16
FF0000
16
FFFFFF
16
Bank FF
16
Bank FE
16
00FFFF
16
00FFD6
16
00087F
16
000000
16
00007F
16
000080
16
Internal RAM
2048 bytes
00FFFE
16
00FFD6
16
00007F
16
000000
16
UART0 transmission
UART0 receive
INT
1
:
Internal
:
External
Note. Banks 10
16
–FF
16
cannot be accessed in the M37735S4BFP.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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