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參數(shù)資料
| 型號： | M37920FGCGP |
| 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)） |
| 文件頁數(shù)： | 17/158頁 |
| 文件大小： | 1261K |
| 代理商： | M37920FGCGP |
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M37920FCCGP, M37920FCCHP
M37920FGCGP, M37920FGCHP
17
MITSUBISHI MICROCOMPUTERS
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
BUS INTERFACE UNIT
Data transfer shown below is always performed via the bus interface
unit (BIU), which is located between the CPU and the internal buses:
Between the CPU and the internal memory, internal peripheral de-
vices, external areas
Between the DMA controller (DMAC) and the internal memory, in-
ternal peripheral devices, external areas
Figure 7 shows the BIU and the bus structure. The CPU and BIU, or
DMAC and BIU are connected by a dedicated bus respectivery, and
any transfer between the CPU and BIU, or DMAC and BIU is con-
trolled by this dedicated bus.
On the other hand, data transfer between the BIU and internal pe-
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-
Fig. 7 BIU and bus structure
Internal code bus (CB
0
to CB
31
)
Central
Processing
Unit
(CPU)
SFR : Special Function Register
The CPU bus, DMAC bus, internal bus, and external bus separate out independently.
External
devices
Internal control signal
CPU bus
Internal bus
Internal data bus (DB
0
to DB
15
)
Internal
memory
Internal
peripheral
devices
(SFR)
External bus
A
0
to A
23
(MA
0
to MA
11
)
D
0
to D
7
D
8
to D
15
Control signal
Bus
Interface
Unit
(BIU)
Bus
conversion
circuit
Internal address bus (AD
0
to AD
23
)
DMA
controller
(DMAC)
DMAC bus
Refresh request
DRAM control signal
DRAM
controller
(DRAMC)
HOLD
Hold request
HLDA
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.
Each width of external buses are as follows: a 24-bit address bus,
16-bit data bus.
The external data bus transfers instruction codes and data. When
the code or data access occurs for the external, the external access
is performed via the bus conversion circuit.
When the DRAM is selected in external devices, the internal DMAC
controller (DRAMC) is operated, and access for DRAM and DRAM
refresh operation become enabled. For details, refer to the section
on the chip select wait controller and DRAMC described later.
When accessing the external devices, it is possible to insert the re-
covery cycles. Refer to the section on the processor modes and chip
select wait controller described later.
When the burst ROM is used as an external device, refer to the sec-
tion on the chip select wait controller described later.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37920FCCGP | Single Chip 16 Bits CMOS Microcomputer(16位單片機(jī)) |
| M37920FCCHP | Single Chip 16 Bits CMOS Microcomputer(16位單片機(jī)) |
| M37920FGCHP | Single Chip 16 Bits CMOS Microcomputer(16位單片機(jī)) |
| M3802 | Single Chip 8 Bits Microcomputer(8位單片機(jī)) |
| M3820 | Single Chip 8 Bits Microcomputer(8位單片機(jī)) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37920FGCHP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION |
| M37920S4CGP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16 BIT CMOS MICROCOMPUTER |
| M37P75C4P3 | 功能描述:汽車連接器 Pin Contact RoHS:否 制造商:Amphenol SINE Systems 產(chǎn)品:Contacts 系列:ATP 位置數(shù)量: 型式:Female 安裝風(fēng)格: 端接類型: 觸點(diǎn)電鍍:Nickel |
| M37S07K4F3 | 功能描述:汽車連接器 Sckt Contact RoHS:否 制造商:Amphenol SINE Systems 產(chǎn)品:Contacts 系列:ATP 位置數(shù)量: 型式:Female 安裝風(fēng)格: 端接類型: 觸點(diǎn)電鍍:Nickel |
| M37S07K4P3 | 功能描述:汽車連接器 Sckt Contacts RoHS:否 制造商:Amphenol SINE Systems 產(chǎn)品:Contacts 系列:ATP 位置數(shù)量: 型式:Female 安裝風(fēng)格: 端接類型: 觸點(diǎn)電鍍:Nickel |
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