HD64570F Renesas Electronics America, HD64570F Datasheet - Page 259
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HD64570F
Manufacturer Part Number
HD64570F
Description
IC SCA SRL COMM ADAPTER 88QFP
Manufacturer
Renesas Electronics America
Datasheet
1.HD64570F.pdf
(469 pages)
Specifications of HD64570F
Applications
ISDN
Interface
Serial
Voltage - Supply
4.5 V ~ 5.5 V
Package / Case
88-QFP
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64570F
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Company:
Part Number:
HD64570F16
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
HD64570F16
Manufacturer:
HITACHI/日立
Quantity:
20 000
Company:
Part Number:
HD64570F16V
Manufacturer:
INFINEON
Quantity:
12 000
- Current page: 259 of 469
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Chained-Block Transfer Mode: In chained-block transfer mode, the 8-bit subregister composed
of bit 23–bit 16 serves as the chain pointer base (CPB) for specifying the high-order eight bits of
the 24-bit descriptor address. When the high-order eight bits are specified, the 64-Kbytes memory
space is used as the descriptor area.
This register must be set in DMA initial state.
After reset, the value of these registers is undefined.
• Channels: 0, 2
• Channels: 1, 3
Single-block transfer
mode
Chained-block
transfer mode
Single-block transfer
mode
Chained-block
transfer mode
Note: In chained-block transfer mode, bit 15–bit 0 are used for internal operations.
Nothing, therefore, must be written to them.
Figure 6.2 Source Address Register/Chain Pointer Base
23
23
Not used
SARB
CPB
CPB
B
B
16 15
16 15
Not used
Not used
Not used
SARH
H
H
Rev. 0, 07/98, page 243 of 453
8 7
8 7
Not used
Not used
Not used
SARL
L
L
0
0
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