參數(shù)資料
型號： M306H3FCFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP116
封裝： 20 X 20 MM, 0.65 MM PITCH, PLASTIC, LQFP-116
文件頁數(shù)： 113/135頁
文件大?。?/td> 2583K
代理商： M306H3FCFP
Rev.1.00
2004.03.23
page 79 of 320
M306H3MC-XXXFP/FCFP
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
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
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 request
RW
(b5-b4)
Refer to note
Note: 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, INTTMTi, and HINTi (i=0-3) 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)
manner described below.
Figure 2.9.2. DM0SL Register
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