isp1581 NXP Semiconductors, isp1581 Datasheet - Page 45

• Manufacturer Part Number: isp1581
• Description: Isp1581 Hi-speed Universal Serial Bus Peripheral Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 61:
Table 63:
9397 750 13462
Product data
Bit
Symbol
Power Reset
Bus Reset
Access
Bit
Symbol
Power Reset
Bus Reset
Access
Bit
Symbol
Reset
Bus reset
Access
Bit
Symbol
Reset
Bus reset
Access
Frame Number register: bit allocation
Scratch Register: bit allocation
15
7
15
R
9.5.3 Frame Number register (address: 74H)
7
9.5.4 Scratch register (address: 78H)
-
-
reserved
Table 60:
This read-only register contains the frame number of the last successfully received
Start Of Frame (SOF). The register contains 2 bytes and the bit allocation is given in
Table
Table 62:
This 16-bit register can be used by the firmware to save and restore information, for
example, the device status before it enters ‘suspend’ state. The bit allocation is given
in
Bit
23 to 16
15 to 8
7 to 0
Bit
13 to 11
10 to 0
Table
14
6
14
R
6
-
-
61. In case of 8-bit access the register content is returned lower byte first.
63.
Chip ID Register: bit description
Frame Number register: bit description
Symbol
CHIPID[23:16] Chip ID: lower byte (15H)
CHIPID[15:8]
VERSION
Symbol
MICROSOF[2:0] microframe number
SOFR[10:0]
13
5
Rev. 06 — 23 December 2004
13
5
MICROSOF[2:0]
Description
Chip ID: upper byte (81H)
Version number (51H): The version number will be upgraded as
and when there are new revisions with improved performance
and functionality.
12
00H
00H
4
Description
frame number
12
R
4
SFIRH[7:0]
SFIRL[7:0]
SOFR[7:0]
R/W
R/W
00H
00H
00H
00H
00H
00H
R
11
3
11
3
Hi-Speed USB peripheral controller
10
10
2
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
2
SOFR[10:8]
00H
00H
9
1
R
9
1
ISP1581
8
0
45 of 79
8
0