466
EDACR0—EXDMA Address Control Register 0
H'FDCE
EXDMAC
Bit
Initial value
Read/Write
15
SAT1
0
R/W
14
SAT0
0
R/W
13
SARIE
0
R/W
12
SARA4
0
R/W
11
SARA3
0
R/W
10
SARA2
0
R/W
9
SARA1
0
R/W
8
SARA0
0
R/W
Source Address Repeat Interrupt Enable
0
Source address repeat interrupt is not requested
1
When source address repeat area overflow occurs, the IRF bit
in EDMDR is set to 1 and an interrupt is requested
Source Address Repeat Area
0
0
0
0
1
:
0
1
1
1
1
*
Source address (EDSAR) is not designated as repeat area
Lower 1 bit of EDSAR (2-byte area) designated as repeat area
Lower 2 bits of EDSAR (4-byte area) designated as repeat area
Lower 3 bits of EDSAR (8-byte area) designated as repeat area
Lower 4 bits of EDSAR (16-byte area) designated as repeat area
: (Continues in the same way)
Lower 19 bits of EDSAR (512-kbyte area) designated as repeat area
Lower 20 bits of EDSAR (1-Mbyte area) designated as repeat area
Lower 21 bits of EDSAR (2-Mbyte area) designated as repeat area
Lower 22 bits of EDSAR (4-Mbyte area) designated as repeat area
Lower 23 bits of EDSAR (8-Mbyte area) designated as repeat area
Reserved (setting prohibited)
*
: Don’t care
0
0
1
1
0
:
1
0
0
1
1
*
0
0
0
0
0
:
0
0
0
0
0
1
0
0
0
0
0
:
1
1
1
1
1
1
0
1
0
1
0
:
1
0
1
0
1
*
Source Address Update Mode
0
1
*
0
1
Source address (EDSAR) is fixed
Source address is incremented (+1 in byte transfer, +2 in word transfer)
Source address is decremented (–1 in byte transfer, –2 in word transfer)
*
: Don’t care
Содержание H8S/2670
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