uja1023 NXP Semiconductors, uja1023 Datasheet - Page 9

• Manufacturer Part Number: uja1023
• Description: Uja1023 Lin-i/o Slave
• Manufacturer: NXP Semiconductors

Philips Semiconductors
UJA1023_4
Product data sheet
Table 6.
The format of the positive response is shown in
Table 7.
[1]
The NAD assignment can be done via Daisy Chain (DC), (see
assignment”) as well as via Plug ID (see
NAD assignment can be distinguished on the value of the initial NAD, which is the first
data byte D0 of the MasterReq assign NAD request. For reliability reasons the assignment
mode decision is valid only if the combination of D0 to D6 (see
power-on the UJA1023 message identifiers PxReq and PxResp (see
disabled. This is also true for NAD reassignment. In this case the message identifiers
PxReq, PxResp and I/O configuration are disabled.
Byte
D0
D1
D2
D3 and D4 7 to 0
D5 and D6 7 to 0
D7
Data
byte
D0
D1
D2
D3
D4
D5
D6
D7
d = different values possible; see
7
d
0
1
1
1
1
1
1
Bit description of assign NAD request
Positive response assign NAD request
Bit
7 to 0
7 to 0
7 to 0
7 to 0
6
d
0
1
1
1
1
1
1
Symbol
C[3:1]
PCI
SID
-
-
NAD[7:0]
Rev. 04 — 5 July 2006
5
d
0
1
1
1
1
1
1
Table
Description
Initial NAD. This byte defines the initial NAD, refer to the
related items topics
Protocol control information.
Service identifier. As SlaveResp the RSID code will be 0xF0.
Supplier ID. Fixed code 0x0011 for Philips.
Function ID. For the UJA1023 this code is fixed as 0x0000.
Slave Node Address (NAD). NAD values are in the range 1 to
127, while 0 and 128 to 255 are reserved for other purposes.
0x08 to 0x0F (D0[0] = C1, D0[1] = C2 and
D0[2] = C3) defines Plug ID; D0[3] = 1 for Plug ID
configuration
0x20 = daisy chain on; enable daisy chain pin drivers and
receivers
0x21 = assign NAD via daisy chain
0x23 = daisy chain off; disable daisy chain pin drivers and
receivers
6.
4
d
0
1
1
1
1
1
1
Section “Plug ID NAD
3
d
0
0
1
1
1
1
1
Table
[1]
7.
2
d
0
0
1
1
1
1
1
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Section “Daisy chain NAD
1
d
0
0
1
1
1
1
1
Table
assignment”). The type of
5) is true. After
Section
UJA1023
0
d
1
0
1
1
1
1
1
LIN-I/O slave
7.2.5) are
Default
value
(hex)
08
01
F0
FF
FF
FF
FF
FF
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