isp1181 NXP Semiconductors, isp1181 Datasheet - Page 40

• Manufacturer Part Number: isp1181
• Description: Isp1181 Full-speed Universal Serial Bus Interface Device
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 43:
[1]
Table 46:
9397 750 08938
Product data
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Reset value undefined after a bus reset.
[1]
[1]
Frame Number Register: bit allocation
Chip ID Register: bit allocation
reserved
15
15
R
R
R
R
0
7
0
7
12.3.5 Read Chip ID
Code (Hex): B4 — read frame number
Transaction — read 1 or 2 bytes
reserved
Table 44:
Table 45:
This command reads the chip identification code and hardware version number. The
firmware must check this information to determine the supported functions and
features. This command accesses the Chip ID Register, which is shown in
Code (Hex): B5 — read chip ID
Transaction — read 2 bytes
A0
1
0
0
A0
1
0
14
14
R
R
R
R
0
6
0
6
Phase
command
data
data
Phase
command
data
Example of Frame Number Register access (8-bit bus width)
Example of Frame Number Register access (16-bit bus width)
reserved
13
13
R
R
R
R
0
5
0
5
Rev. 04 — 30 October 2001
Bus lines
D[7:0]
D[7:0]
D[7:0]
Bus lines
D[7:0]
D[15:8]
D[15:0]
reserved
12
12
R
R
R
R
0
4
0
4
CHIPIDH[7:0]
CHIPIDL[7:0]
SOFRL[7:0]
XXH
81H
Byte #
-
0
1
Word #
-
-
0
reserved
11
11
R
R
R
R
0
3
0
3
Description
command code (B4H)
frame number (lower byte)
frame number (upper byte)
Description
command code (B4H)
ignored
frame number
10
10
R
R
R
R
0
2
0
2
© Koninklijke Philips Electronics N.V. 2001. All rights reserved.
Full-speed USB interface
SOFRH[2:0]
R
R
R
R
9
0
1
0
9
1
ISP1181
Table
R
R
R
R
8
0
0
0
8
0
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46.