ISP1521 查看數據表（PDF） - Philips Electronics
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ISP1521 Datasheet PDF : 53 Pages
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Philips Semiconductors
ISP1521
Hi-Speed USB hub controller
9.2.3 ROM or EEPROM map
9397 750 13702
Product data
00H
02H
0AH
10H
7FH
80H
FFH
Fig 8. ROM or EEPROM map.
Signature
Device Descriptor
Language ID
String Descriptor
(first Language ID):
iManufacturer string
iProduct string
iSerial Number string
String Descriptor
(second Language ID):
iManufacturer string
iProduct string
iSerial Number string
MLD714
Remark: A 128-byte EEPROM supports one language ID only, and a 256-byte
EEPROM supports two language IDs.
9.2.4 ROM or EEPROM detailed map
Table 12: ROM or EEPROM detailed map
Address Content
(hex)
Default Example Comment
(hex) (hex)
Signature descriptor
00
signature (low) 55
-
signature to signify valid data comment
01
signature (high) AA
-
Device descriptor
02
idVendor (low) CC
-
Philips Semiconductors vendor ID
03
idVendor (high) 04
-
04
idProduct (low) 21
-
ISP1521 product ID
05
idProduct (high) 15
-
06
bcdDevice (low) 00
-
07
bcdDevice (high) 02
-
device release; silicon revision
increments this value
08
RSV, iSN, iP, iM -
00
if all the three strings are supported, the
value of this byte is 39H
09
reserved
-
FF
-
String descriptor Index 0 (language ID)
0A
bLength[1]
-
06
two language ID support
0B
bDescriptorType -
03[2]
STRING
0C
wLANGID[0]
-
0D
-
09
LANGID code zero (first language ID)
04
(English—USA in this example)
0E
wLANGID[1]
-
0F
-
09
LANGID code one (second language ID)
08
(English—UK in this example)
String descriptor Index 1 (iManufacturer)[3]
10
bLength
-
2E
string descriptor length (manufacturer ID)
Rev. 03 — 24 November 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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