參數(shù)資料
型號: M30240M5-XXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP80
封裝: 0.80 MM PITCH, PLASTIC, QFP-80
文件頁數(shù): 101/139頁
文件大小: 1453K
代理商: M30240M5-XXXFP
64
Mitsubishi microcomputers
M30240 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Specifications REV. G
Specifications in this manual are tentative and subject to change
DMAC
Number of transfer cycles per transfer unit = Number of read cycles x j + Number of write cycles x k
Figure 1.57: Example of the transfer cycle for a source read
Table 1.16:
Number of DMAC transfer cycles
Transfer unit
Access address
Single-chip mode
Number of read cycles
Number of write cycles
8-bit transfers (DMBIT=”1”)
Even
1
Odd
1
16-bit transfers (DMBIT=”0”)
Even
1
Odd
2
Table 1.17:
Coefficients j,k
Internal memory
Internal ROM/RAM No wait
Internal ROM/RAM with wait
SFR area
122
Internal
clock
Φ
Address
bus
Data
bus
CPU use
Source
Destination
(1) 8-bit transfers
16-bit transfers from even address and the source address is even.
Address
bus
Data
bus
CPU use
Source
Destination
(3) One wait is inserted into the source read under the conditions in (1)
Address
bus
Data
bus
CPU use
Source
Destination
Source + 1
(2) 16-bit transfers and the source address is odd
Address
bus
Data
bus
CPU use
Source
Destination
Source + 1
(4) One wait is inserted into the source read under the conditions in (2)
Note : The same timing changes occur with the respective conditions at the destination as at the source.
(When 16-bit data is transfferred on an 8-bit data but, there are two destination write cycles.)
Internal
clock
Φ
Internal
clock
Φ
Internal
clock
Φ
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