isp1181b NXP Semiconductors, isp1181b Datasheet - Page 39

• Manufacturer Part Number: isp1181b
• Description: Isp1181b Full-speed Universal Serial Bus Peripheral Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 42:
[1]
Table 46:
9397 750 13958
Product data
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
15
15
R
R
R
0
7
0
12.3.5 Read Chip ID
Code (Hex): B4 — read frame number
Transaction — read 1 or 2 bytes
Table 43:
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
Bit
15 to 11
10 to 8
7 to 0
A0
1
0
0
A0
1
0
14
14
R
R
R
0
6
0
Phase
command
data
data
Phase
command
data
Frame Number Register: bit description
Example of Frame Number Register access (8-bit bus width)
Example of Frame Number Register access (16-bit bus width)
Symbol
-
SOFRH[2:0]
SOFRL[7:0]
reserved
13
13
R
R
R
0
5
0
Rev. 02 — 07 December 2004
Bus lines
D[7:0]
D[7:0]
D[7:0]
Bus lines
D[7:0]
D[15:8]
D[15:0]
Description
reserved
SOF frame number (upper byte)
SOF frame number (lower byte)
12
12
R
R
R
0
4
0
CHIPIDH[7:0]
SOFRL[7:0]
81H
Byte #
-
0
1
Word #
-
-
0
11
11
R
R
R
0
3
0
Full-speed USB peripheral controller
Description
command code (B4H)
frame number (lower byte)
frame number (upper byte)
Description
command code (B4H)
ignored
frame number
10
10
R
R
R
0
2
0
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
SOFRH[2:0]
ISP1181B
R
R
R
9
0
1
0
9
Table
R
R
R
8
0
0
0
8
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46.