TMP91C824
91C824-49
Symbol
NAME
Address
7 6 5 4 3 2 1 0
DMA0 Start Vector
DMA0V5
DMA0V4 DMA0V3
DMA0V2 DMA0V1
DMA0V0
R/W
DMA0V
DMA0
Start
Vector
80H
0 0 0 0 0 0
DMA1 Start Vector
DMA1V5
DMA1V4 DMA1V3
DMA0V2 DMA1V1
DMA1V0
R/W
DMA1V
DMA1
Start
Vector
81H
0 0 0 0 0 0
DMA2 Start Vector
DMA2V5
DMA2V4 DMA2V3
DMA2V2 DMA2V1
DMA2V0
R/W
DMA2V
DMA2
Start
Vector
82H
0 0 0 0 0 0
DMA3 Start Vector
DMA3V5
DMA3V4 DMA3V3
DMA3V2 DMA3V1
DMA3V0
R/W
DMA3V
DMA3
Start
Vector
83H
0 0 0 0 0 0
(5) Micro DMA burst specification
Specifying the micro DMA burst continues the micro DMA transfer until the transfer counter
register reaches zero after micro DMA start. Setting a bit which corresponds to the micro DMA
channel of the DMAB registers mentioned below to “1” specifies a burst.
Symbol
NAME
Address
7 6 5 4 3 2 1 0
DMAR3
DMAR2
DMAR1
DMAR0
R/W R/W R/W R/W
0
0
0
0
DMAR
DMA
Software
Request
Register
89H
1: DMA Software request
DMAB3
DMAB2
DMAB1
DMAB0
R/W
DMAB
DMA
Burst
Register
8AH
0
0
0
0