參數(shù)資料
型號(hào): M37640E8FS
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機(jī)
文件頁數(shù): 71/96頁
文件大小: 1477K
代理商: M37640E8FS
71
Ver 1.4
MITSUBISHI MICROCOMPUTERS
7640 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
3C
18
41
90
OpCode2
DMA Data
OpCode3
DMA Dest.
Address
DMA Source
Address
42,00
PC + 2
PC + 1
PC
PC + 3
OpCode5
PC + 4
LDM #$90, $41
SiInst.
DMAC Transfer
Next
PC + 6
DMA Data
Φ
out
SYNC
out
RD
WR
Address
Data
DMAC Transfer
3
)
Transfer Request
Source (active low)
Transfer Request
Source Sampling
Transfer Request
Source Sample
Latch Reset
OpCode4
PC + 5
SiInst.
SInst.
Φ
out
SYNC
out
RD
WR
Address
Data
A5
ADL1
Data
85
DMA Data
DMA Data
ADL2
ADL2, 00
DMA Dest.
Address
DMA Source
Address
PC + 2
ADL1, 00
PC + 1
PC
PC + 3
OpCode3
PC + 4
LDA$zz
(STA $zz
DMAC Transfer
STA $zz (last 2 cycles)
Data
DMAC Transfer
3
)
Transfer Request
Source (active low)
Transfe Request
Source Sampling
Transfer Request
Source Sample
Latch Reset
Inst.
A5
ADL1
Data
85
DMA Data1
DMA Data1
DMA Data2
DMA Dest.
Address1
DMA Source
Address1
PC + 2
ADL1, 00
PC + 1
PC
ADL2
PC + 3
LDA $zz
(STA $zz
DMAC Transfer
STA $zz (second cycle)
DMA Data2
DMA Source
Address2
Address2
DMA Dest.
Φ
out
SYNC
out
RD
WR
Address
Data
DMAC Transfer
3
)
Transfer Request
Source (active low)
Transfe Request
Source Sampling
Transfer Request
Source Sample
Latch Reset
Fig. 1.86. DMAC Transfer-Hardware Source Initiated
Fig. 1.87. DMAC Transfer-Software Trigger Initiated
Fig. 1.88. DMAC Transfer-Burst Transfer Initiated
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