uja1023 NXP Semiconductors, uja1023 Datasheet - Page 6

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

Philips Semiconductors
UJA1023_4
Product data sheet
Depending on the usage of the MasterReq the meaning of the data bytes can be different.
Thus each LIN slave evaluates these data bytes.
Using MasterReq and SlaveResp for the UJA1023 configuration flow, as shown in
Figure
data in the SlaveResp, so the master can review slave configuration data. The use of the
SlaveResp is optional.
The configuration flow is not disturbed if LIN commands other than shown in
sent to other LIN slave nodes. Thus the LIN master can transmit other LIN messages
while it (re)configures the UJA1023.
Remarks:
•
•
•
The I/O configuration will be enabled during the first usage of the UJA1023 message
frames (see
Notation Px is used in this document when referring to a function or property of any of
the I/O pins P0 to P7
For correct I/O configuration, the configuration requests must be sent in sequential
order of first, second and third configuration data block
3, is a so-called ‘handshake’ concept. The slave echoes its received MasterReq
Section
Rev. 04 — 5 July 2006
7.2.5) of the PxResp or PxReq
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
UJA1023
LIN-I/O slave
Figure 3
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