W90220F Winbond Electronics Corp America, W90220F Datasheet - Page 36

• Manufacturer Part Number: W90220F
• Description: Pa-risc Embedded Controller
• Manufacturer: Winbond Electronics Corp America

The above information is the exclusive intellectual property of Winbond Electroncs Corp. and shall not be dsiclosed or distributed or reproduced without permission from
Winbond.
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5.2.2 DMA REGISTERS
There are twelve registers included in two channels Direct Memory Access (DMA) controller. The IO address map
is allocated from 0xf0000200 to 0xf000022c.
Table 5.2.2-1 : DMA Register Map
Source Addrsee Register (SAR0 and SAR1)
Port address : 0xf0000200
Port address : 0xf0000210
BA + 0x200
BA + 0x204
BA + 0x208
BA + 0x210
BA + 0x214
BA + 0x218
BA + 0x220
BA + 0x224
BA + 0x228
BA + 0x20c
Port Addr.
BA+ 0x21c
BA + 0x22c
These two bits together with RAMconf1[7] ("FR ") determine CAS# active-time during
"DRAM read" cycles. Please refer Table 5.2.1-5 to get detail information.
Symbol
LCAR0
LCAR1
LETH0
LETH1
MOD0
MOD1
DBA0
DBA1
TAR0
TAR1
SAR0
SAR1
Read/Write
Read/Write
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
Description
Channel 0 Source Address Register
Channel 0 Target Address Register
Channel 0 Length Register
Channel 0 Mode Control Register
Channel 1 Source Address Register
Channel 1 Target Address Register
Channel 1 Length Register
Channel 1 Mode Control Register
DMA IO Device 0 Bass Address
DMA IO Device 1 Base Address
Channel 0 Length Counter
Channel 1 Length Counter
Power-on Default : 0x00000000
Power-on Default : 0x00000000
(IO base (BA) : 0xf0000000)
W90220F
Version 0.84