W90221X Winbond Electronics Corp America, W90221X Datasheet - Page 137
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W90221X
Manufacturer Part Number
W90221X
Description
Pa-risc Embedded Controller
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W90221X.pdf
(220 pages)
- Current page: 137 of 220
- Download datasheet (3Mb)
Master 1 Latency Register (REG1)
Port address: 0xf0000254
Bits 0-18
Bit 19
Bit 20
Bits 21-31
W90221X version 0.6
16
24
0
8
0
1
0
1
Reserved
17
25
1
9
Reserved
CPU reset signal
Disable
Generate CPU reset signal
Request priority select
Rotate priority
Fix priority
Number of PCICLK count for master latency adjustment
Latency Time = REQ1_reg[0:11] / PCICLK
10
18
26
2
Access type: read/write
CPURST
REQ1_reg[3:10]
11
19
27
3
Reserved
Reserved
FIX
12
20
28
4
13
21
29
5
REQ1_reg[0:2]
Default: 0x000003ff
14
22
30
6
15
23
31
7
- 137 -
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