參數(shù)資料
型號(hào)： μPD72862
廠商： NEC Corp.
英文描述： IEEE1394 OHCI Host Controller(IEEE1394 主控制器)
中文描述： IEEE1394連接OHCI主機(jī)控制器（IEEE1394連接主控制器）
文件頁(yè)數(shù)： 21/36頁(yè)
文件大?。?/td> 194K
代理商： ΜPD72862
Data Sheet S14265EJ2V0DS00
21
μ
PD72862
3. SERIAL ROM INTERFACE
The
μ
PD72862 provides a serial ROM interface to initialize the 1394 Global Unique ID Register and the
PCI/Cardbus Mode Configuration registers from a serial EEPROM.
3.1 Serial EEPROM Register
Register Address
Register Name
R/W
Base address + 0x930
SUBID register
R/W
Base address + 0x934
LATVAL register
R/W
Base address + 0x938
W_GUIDHi register
R/W
Base address + 0x93C
W_GUIDLo register
R/W
Base address + 0x940
Parameters Write register
R/W
Base address + 0x95C
W_GENERAL register
R/W
Base address + 0x960
W_PHYS register
R/W
Base address + 0x984
W_CIS register
R/W
Remark
Base address : Base Address 0 in Configuration register
3.2 Serial EEPROM Register Description
(1) SUBID register (Base address + 0x930)
31
16 15
0
W_SUBSYSID
W_SUBVNDID
Field
Bits
R/W
Default value
Description
W_SUBSYSID
31-16
R/W
0063H
Subsystem ID value. The value is loaded into Subsystem ID register in
Configuration register (offset+2CH bit 31-16).
W_SUBVNDID
15-0
R/W
1033H
Subsystem Vendor ID value. The value is loaded into Subsystem Vendor ID
register in Configuration register (Offset+2CH bit 15-0).
(2) LATVAL register (Base address + 0x934)
31
24 23
16 15
12 11 10
4
3
0
W_MAXLAT
W_MINGNT
- 0 -
1
- 0 -
W_MAX_REC
Field
Bits
R/W
Default value
Description
W_MAXLAT
31-24
R/W
00H
Max Latency value. The value is loaded into Max Latency register in
Configuration register (Offset+3CH bit 31-24).
W_MINGNT
23-16
R/W
00H
Min Grant value. The value is loaded into Min Grant register in Configuration
register (Offset+3CH bit 23-16).
15-12
-
-
Reserved. Write 0 to these bits.
11
-
-
Reserved. Write 1 to this bit.
-
10-4
-
-
Reserved. Write 0 to these bits.
W_MAX_REC
3-0
R/W
9H
MAX__REC value. The value is loaded into the max_rec field of OHCI
BusOption register in OHCI register (Offset+020H bit 15-12).
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