EZ80190AZ050EC Zilog, EZ80190AZ050EC Datasheet - Page 154
EZ80190AZ050EC
Manufacturer Part Number
EZ80190AZ050EC
Description
IC WEBSERVER 50MHZ XTEMP 100lQFP
Manufacturer
Zilog
Datasheet
1.EZ80190AZ050SG.pdf
(221 pages)
Specifications of EZ80190AZ050EC
Processor Type
eZ80
Features
High Speed, Single-Cycle Instruction-Fetch
Speed
50MHz
Voltage
3.3V
Mounting Type
Surface Mount
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
269-3123
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PS006614-1208
DMA Destination Address Registers
Table 78. DMA Destination Address Registers DMA0_DAR_L = F1h, DMA0_DAR_H = F2h,
DMA Byte Count Registers
Bit
Position
[7:0]
DMAx_SAR_L,
DMAx_SAR_H,
or
DMAx_SAR_U
Bit
Reset
CPU Access
Note: X = Undefined; R/W = Read/Write.
Bit
Position
[7:0]
DMAX_DAR_L,
DMAX_DAR_H,
or
DMAX_DAR_U
DMA0_DAR_U = F3h, DMA1_DAR_L = FAh, DMA1_DAR_H = FBh, DMA1_DAR_U = FCh
This group of registers holds the 24-bit address of the current destination memory loca-
tion. Depending upon settings within the DMA Control registers’ DMA_CTL fields, the
24-bit address values can automatically be incremented, decremented, or unchanged fol-
lowing transfer of each byte of data. See
The two pairs of DMA Byte Count registers, listed in
number of bytes to be transferred by the DMA channels. The 16-bit value,
{DMAx_BC_H, DMAx_BC_L}, is decremented after each transfer. The DMA transfer is
complete when the value decrements to
Value Description
00h–
FFh
Value Description
00h–
FFh
R/W
X
7
The 2 sets of DMA Source address registers contain the
memory location addresses for the source of the data
transfer. The 24-bit addresses are returned by
{DMAx_SAR_U, DMAx_SAR_H, DMAx_SAR_L}, where x
is either 0 or 1.
The 2 sets of DMA Destination address registers contain
the memory location addresses for the destination of the
data transfer. The 24-bit addresses are returned by
{DMAx_DAR_U, DMAx_DAR_H, DMAx_DAR_L} where x
is either 0 or 1.
R/W
X
6
R/W
X
5
0000h
Table
R/W
X
4
. One to 65535 bytes can be transferred.
78.
R/W
X
3
Table 79
R/W
Direct Memory Access Controller
X
2
on page 145, contain the
Product Specification
R/W
X
1
R/W
X
0
eZ80190
144
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