參數(shù)資料
型號(hào)： M306H7MC-XXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁數(shù)： 77/115頁
文件大?。?/td> 3146K
代理商： M306H7MC-XXXFP
Rev.2.10
Oct 25, 2006
Page 64 of 326
REJ03B0152-0210
M306H7MG-XXXFP/MC-XXXFP/FGFP
8. DMAC
Figure 8.2
DM0SL Register
DMA0 request cause select register
Symbol
Address
After reset
DM0SL
03B816
0016
Function
Bit symbol
b7
b6
b5
b4
b3
b2
b1
b0
DMA request cause
select bit
DSEL0
RW
DSEL1
DSEL2
DSEL3
Nothing is assigned. When write, set to “0”.
When read, its content is “0”.
Software DMA
request bit
A DMA request is generated by
setting this bit to “1” when the DMS
bit is “0” (basic cause) and the
DSEL3 to DSEL0 bits are “00012”
(software trigger).
The value of this bit when read is “0” .
DSR
DSEL3 to DSEL0 DMS=0 (basic cause of request)
DMS=1 (extended cause of request)
0 0 0 02
Falling edge of INT0 pin
–
0 0 0 12
Software trigger
–
0 0 1 02
Timer A0
–
0 0 1 12
Timer A1
–
0 1 0 02
Timer A2
–
0 1 0 12
Timer A3
–
0 1 1 02
Timer A4 (Note 4)
Two edges of INT0 pin
0 1 1 12
Timer B0
Timer B3
1 0 0 02
Timer B1
Timer B4
1 0 0 12
Timer B2 (Note 3)
Timer B5
1 0 1 02
UART0 transmit
–
1 0 1 12
UART0 receive
–
1 1 0 02
UART2 transmit
–
1 1 0 12
UART2 receive
–
1 1 1 02
A-D conversion
–
1 1 1 12
UART1 transmit
–
Bit name
DMA request cause
expansion select bit
DMS
0: Basic cause of request
1: Extended cause of requestt
RW
(b5-b4)
Refer to note
Note 1: The causes of DMA0 requests can be selected by a combination of DMS bit and DSEL3 to DSEL0 bits in the
Note 2: In VINTi, INTRMTi, and HINTi (i = 0 to 3) of address 3616 expansion register of expansion function, when use
them by the following setup, DMA request cause extension select bit = "1" (extended cause of request) cannot be used.
VINTi = 10112
INTRMTi = 10102
HINTi = 10012
(i = 0 to 3)
Note 3: Please change SECINTi (i = 0 to 3) in address 3616 expansion registers of the expansion feature to the following settings
when you use the DMA forwarding by timer B2 interrupt request.
SECINTi = 00002
The DMA forwarding by the clock timer interrupt request cannot be used.
Note 4: Please change EXTIICINTi (i = 0 to 3) in address 02D616 I2C0 interrupt control register to the following settings when you
use the DMA forwarding by timer A4 interrupt request.
EXTIICINTi = 00002
The DMA forwarding by the Multi-master I2C interrupt request cannot be used.
manner described below.
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