- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370849 > M37902FJCHP (Mitsubishi Electric Corporation) SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER PDF資料下載
參數(shù)資料
| 型號(hào)： | M37902FJCHP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單片16位CMOS微機(jī) |
| 文件頁(yè)數(shù)： | 16/143頁(yè) |
| 文件大小： | 1463K |
| 代理商： | M37902FJCHP |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)當(dāng)前第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)
M37902FCCHP, M37902FGCHP, M37902FJCHP
MITSUBISHI MICROCOMPUTERS
16
SHINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
BANK
In order to effectively use the integrated hardware on the chip, this
CPU core uses an address generating method with a 24-bit address
split into high-order 8 bits and low-order 16 bits. In other words, the
64 Kbytes specified by the low-order 16 bits are one unit (referred to
as
“
bank
”
), and the address space is divided into 256 banks (0
16
to
FF
16
) specified by the high-order 8 bits.
In the program area on the address space, the bank is specified by
the program bank register (PG), and the address in the bank is
specified by the program counter (PC).
As for each bank boundary, when an overflow has occurred in PC,
the contents of PG are incremented by 1. When a borrow has oc-
curred in PC, the contents of PG are decremented by 1. Under the
normal conditions, therefore, programming without concern for the
bank boundaries is possible. Furthermore, as for the data area on
the address space, the bank is specified by the data bank register
(DT), and the address in the bank is specified by the operation result
by using the various addressing modes
(Note).
Note:
Some addressing modes directly specify a bank.
DIRECT PAGE
The internal memory and control registers for internal peripheral de-
vices, etc. are assigned to bank 0
16
(addresses 0
16
to FFFF
16
). The
direct page and direct addressing modes have been provided for the
effective access to bank 0
16
. In the 7900 Series, two types of direct
addressing modes are available: the conventional direct addressing
mode which uses only DPR0, as in the 7700 Series, and the ex-
panded direct addressing mode, which uses up to 4 direct page reg-
isters as selected by the user. The addressing mode is selected
according to the contents of bit 1 of the processor mode register 1.
This bit 1 is cleared to
“
0
”
at reset. (In other words, the conventional
direct addressing mode is selected.) However, once this bit 1 has
been set to
“
1
”
by software, this bit cannot be cleared to
“
0
”
again,
except by reset. That is to say, when one of these two direct address-
ing modes has been selected just after reset, the selected address-
ing mode cannot be switched to another one while the program is
running.
I
Conventional direct addressing mode
The direct page area consists of 256-byte space. Its bank address is
“
00
16
”
, and the base address of its low-order 16-bit address is speci-
fied by the contents of the direct page register 0 (DPR0). In this con-
ventional direct addressing modes, a value (1 byte) just after an
instruction code is regarded as an offset value for the DPR0 con-
tents, and the CPU accesses each address in the direct page area.
I
Expanded direct addressing mode
The direct page area consists of four 64-byte spaces. Their bank
address is
“
00
16
”
, and the four base addresses of their low-order 16-
bit addresses are respectively specified by the contents of four direct
page registers. In this expanded direct addressing mode, a value (1
byte) just after an instruction code is regarded as follows:
High-order 2 bits: regarded as a selection field for DPR0 to DPR3.
Low-order 6 bits: regarded as an offset value for the selected direct
page register.
Then, the CPU accesses each address in each direct page area:
Refer to
“
7900 Series Software Manual
”
for details concerning the
various addressing modes which use the direct page area.
Instruction Set
The CPU core of the 7900 Series has an expanded instruction set
based on the existing 7700/7751 Series
’
CPU core. In addition, its
source code (mnemonic) has the complete upper compatibility with
the 7700 Series instruction set.
For details concerning addressing modes and instruction set, refer to
“
7900 Series Software Manual
”
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37905F8CFP | 16-BIT CMOS MICROCOMPUTER |
| M37905F8CSP | 16-BIT CMOS MICROCOMPUTER |
| M37905M4C | DIODE SCHOTTKY DUAL COMMON-ANODE 25V 200mW 0.32V-vf 200mA-IFM 1mA-IF 2uA-IR SOT-323 3K/REEL |
| M37905M4C-XXXFP | 16 BIT CMOS MICROCOMPUTER |
| M37905M4C-XXXSP | 16 BIT CMOS MICROCOMPUTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37903S4CHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER |
| M37905F8CFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16-BIT CMOS MICROCOMPUTER |
| M37905F8CSP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16-BIT CMOS MICROCOMPUTER |
| M37905M4C | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16 BIT CMOS MICROCOMPUTER |
| M37905M4C-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16 BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。