參數(shù)資料
型號(hào): M37905M4C-XXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP64
封裝: 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64
文件頁(yè)數(shù): 10/102頁(yè)
文件大?。?/td> 881K
代理商: M37905M4C-XXXFP
15
M37905M4C-XXXFP, M37905M4C-XXXSP
M37905M6C-XXXFP, M37905M6C-XXXSP
M37905M8C-XXXFP, M37905M8C-XXXSP
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
16-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
BUS INTERFACE UNIT
Data transfer between the central processing unit (CPU) and inter-
nal memory, internal peripheral devices is always performed via the
bus interface unit (BIU), which is located between the CPU and the
internal buses.
Figure 5 shows the BIU and the bus structure. The CPU and BIU are
connected by a dedicated bus, and any transfer between the CPU
and BIU is controlled by this dedicated bus.
On the other hand, data transfer between the BIU and internal pe-
Fig. 5 BIU and bus structure
Internal code bus (CB0 to CB31)
Central
Processing
Unit
(CPU)
SFR : Special Function Register
The CPU bus and internal bus separate out independently.
CPU bus
Internal buses
Internal data bus (DB0 to DB15)
Internal
memory
Internal
peripheral
devices
(SFR)
Internal address bus (AD0 to AD23)
M37905
Bus
Interface
Unit
(BIU)
Internal control signal
ripheral devices uses the following internal common buses: 32-bit
code bus, 16-bit data bus, 24-bit address bus, and control signals.
The bus control method where the code bus and the data bus sepa-
rate out (hereafter, this method is referred to as the separate code/
data bus method) is employed in order to improve data transfer ca-
pabilities. As a result, the internal memory is connected to both the
code bus and the data bus, and registers of all other internal periph-
eral devices are connected only to the data bus.
相關(guān)PDF資料
PDF描述
M37905M8C-XXXFP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP64
M37905M8C-XXXSP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PDIP64
M37905M4C-XXXSP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PDIP64
M37905M4C-XXXFP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP64
M37905M8C-XXXFP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP64
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37905M4C-XXXSP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16 BIT CMOS MICROCOMPUTER
M37905M6C-XXXFP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16 BIT CMOS MICROCOMPUTER
M37905M6C-XXXSP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16 BIT CMOS MICROCOMPUTER
M37905M8C-XXXFP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16 BIT CMOS MICROCOMPUTER
M37905M8C-XXXSP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16 BIT CMOS MICROCOMPUTER