參數(shù)資料
型號: μPD9210FGC-7EA
廠商: NEC Corp.
英文描述: USB Host Controller(USB主控制器)
中文描述: USB主機控制器(的USB主控制器)
文件頁數(shù): 60/95頁
文件大?。?/td> 423K
代理商: ΜPD9210FGC-7EA
CHAPTER 5 REGISTER INFORMATION
60
Table 5-2. Register Information
Register
Address
bits
Read/
Write
Value
(Default)
Comment
Vender ID
00h
15 : 0
R
1033h
NEC’s vendor ID
Device ID
02h
15 : 0
R
0035h
This device’s device ID
Command
04h
15 : 0
See Table 5-1.
Status
06h
15 : 0
See Table 5-4.
Revision ID
08h
7 : 0
R
02h
Version 2.0
23 : 16
R
0Ch
Serial Bus Controller Device
16 : 8
R
03h
USB Device
7 : 0
R
10h
Open HCI Host Controller
Class Code-Base Class
-Sub_Class
-Programming
Interface
09h
Cache Line Size
0Ch
7 : 0
R
00h
Cache disabled
7 : 3
R/W
00000b
Latency Timer
0Dh
2 : 0
R
000b
Time to continuation of bus cycle
Header Type
0Eh
7 : 0
R
00h
Not a PCI-to-PCI Bridge
BIST
0Fh
7 : 0
R
00h
BIST is not supported.
Base Address Register
10h
31 : 0
See Table 5-5.
I/O Address Register
(PC/AT)
14h
31 : 0
See Table 5-6.
I/O Address Register
(PC-98 Series)
18h
31 : 0
N.A.
Subsystem Vender ID
2Ch
15 : 0
R (/W)
0000h
Subsystem ID
2Eh
15 : 0
R (/W)
0000h
Write enabled, according to setting of ID Write
Mask bit
Interrupt Line
3Ch
7 : 0
R/W
00h
Indicates interrupt line’s route
Interrupt Pin
3Dh
7 : 0
R
01h
Application of INTA#
Min_Gnt
3Eh
7 : 0
R
01h
Minimum request time for burst cycle
Max_lat
3Fh
7 : 0
R
15h
Frequency of bus access requests
Table 5-3. Command Register Information
Field
bit
Read/
Write
Value
(Default)
Comment
I/O space
0
R/W
0b
Controls responses to I/O access
Memory space
1
R/W
0b
Controls responses to memory access
Bus Master
2
R/W
0b
Controls bus master operations
Special Cycles
3
R
0b
Ignores special cycles
Memory write and invalidate enable
4
R
0b
Sets memory write and invalidate as invalid
VGA palette snoop
5
R
0b
Sets VGA palette snoop as invalid
Parity Error response
6
R/W
0b
Controls response to parity error
Wait cycle control
7
R
0b
Address/data stepping is not supported.
SERR# enable
8
R/W
0b
Controls responses to system errors
Fast back-to-back enable
9
R
0b
Fast back-to-back access is not supported.
Reserved
15 : 10
R
000000b
Reserved
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