參數資料
型號: M37920FGCGP
廠商: Mitsubishi Electric Corporation
英文描述: Single Chip 16 Bits CMOS Microcomputer(16位單片機)
中文描述: 單片微機16位的CMOS(16位單片機)
文件頁數: 89/158頁
文件大小: 1261K
代理商: M37920FGCGP
89
M37920FCCGP, M37920FCCHP
M37920FGCGP, M37920FGCHP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
MITSUBISHI MICROCOMPUTERS
Fig. 83 Timing diagram example in array chain transfer mode (burst transfer mode) (1)
Fig. 84 Timing diagram example in array chain transfer mode (burst transfer mode) (2)
φ
1
ALE
RD
A
0
A
23
D
0
D
7
D
8
D
15
DMAACK
i
TC
BLW
BHW
G
This example applies on the following conditions:
External data bus width
Transfer unit
Transfer method
Transfer source address direction
Transfer destination address direction
Transfer source area
s wait
Transfer destination area
s wait
Transfer parameter memory
s wait
sa1, sa2, da1, da2
tp
G
The Bus request caused by DRAM refresh or Hold is sampled while the bus request sampling signal
is
1
, and is accepted.
Transfer block
s number
Bus user
: 16 bits
: 16 bits
: 2-bus cycle transfer
: Forward
: Forward
: 1 wait
: 1 wait
: 0 wait
: Transfer parameters (even)
: Start address of first block
s transfer
parameter memory
: 2
: CPU
DMAC
CPU
Memory
Memory
First block transfer
Second block transfer
Memory
sa1
da1
m
sa2
da2
n
tp
First block
s
transfer
parameters
Second block
s
transfer
parameters
tp + 4
tp + 8
tp + 12
tp + 16
tp + 20
sa1
sa1 + m - 1
sa1 + m
sa2 + n - 1
sa2 + n
sa2
da1
da1 + m - 1
da1 + m
da2 + n - 1
da2 + n
da2
Continue to Figure 84.
tp
tp + 2
tp + 4
tp + 6
tp + 8
tp + 10
sa1
da1
H
Transfer of 1 transfer
parameter
Array state
sa1
H
da1
L
da1
H
m
L
m
H
Transfer of 1 transfer unit
Transfer state
Data
L
Data
H
Data
L
Data
H
sa1
L
sa1
M
Ddata
Ddata
Ddata
da1
M
m
M
da1 + m - 2
(CPU)
Data
L
Data
H
Array state
Transfer state
Terminate Processing
tp + 12
tp + 20
da2 + n - 4
sa2 + n - 2
sa2
From proceeding Figure 83.
tp + 22
φ
1
ALE
RD
BLW
BHW
da2 + n - 2
(CPU)
A
0
A
23
D
0
D
7
D
8
D
15
DMAACK
i
TC
n
L
n
H
n
M
sa2
L
Data
L
Data
H
Data
L
Data
H
Data
L
Data
H
Data
L
Data
H
sa2
M
Ddata
相關PDF資料
PDF描述
M37920FCCGP Single Chip 16 Bits CMOS Microcomputer(16位單片機)
M37920FCCHP Single Chip 16 Bits CMOS Microcomputer(16位單片機)
M37920FGCHP Single Chip 16 Bits CMOS Microcomputer(16位單片機)
M3802 Single Chip 8 Bits Microcomputer(8位單片機)
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