NUMICRO-SDK Nuvoton Technology Corporation of America, NUMICRO-SDK Datasheet - Page 424

• Manufacturer Part Number: NUMICRO-SDK
• Description: KIT EVAUATION NUC100/120/130/140
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™r
• Type: MCUr

Specifications of NUMICRO-SDK

• Contents: Board, Cable, CD, Nu-Link
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: NUC100, NUC120, NUC130, NUC140

has to be ‘recessive’. In an Extended Format the Base ID is transmitted first, followed by the IDE
bit and the SRR bit. The Extended ID is transmitted after the SRR bit.
SRR BIT: Substitute Remote Request Bit (Extended Format)
The SRR is recessive bit. It is transmitted in Extended Format at the position of the RTR bit in
Standard Frames and so substitutes the RTR-Bit in the Standard Format.
IDE BIT: Identifier Extension Bit (Extended Format)
The IDE Bit belongs to (a). the ARBITRATION FIELD for the Extended Format. (b). the Control
Field for the Standard Format.
4
DATA LENGTH CODE: (Standard Format as well as Extended Format)
The number of bytes in the DATA FIELD is indicated by the DATA LENGTH CODE. The DATA
LENGTH CODE is 4 bits width and is transmitted within the CONTROL FIELD. The acceptable
number of data length is from 0 to 8 bytes.
5
6
The CONTROL FILED consists of six bits. The format of the CONTROL FIELD is different for
Standard Format and Extended Format. Frames in Standard Format include the DATA
LENGTH CODE, the IDE bit, which is transmitted ‘dominant’, and the reserved bit r0. Frames
in the Extended Format include the DATA LENGTH CODE and two reserved bit r1 and r0.
The reserved bits have to be sent ‘dominant’, but receivers accept ‘dominant’ and ‘recessive’
bits in all combinations.
The DATA FIELD consists of the data to be transferred within a DATA FRAME. It can contain
from 0 to 8 bytes, and each byte contains 8 bits which are transferred from MSB first.
Contains the CRC SEQUENCE followed by a CRC DELIMITER
CONTROL FIELD : (Standard Format as well as Extended Format)
DATA FIELD (Standard Format as well as Extended Format)
CRC FIELD (Standard Format as well as Extended Format)
NuMicro™ NUC100 Series Technical Reference Manual
Figure 5-78 Format of CONTROL FIELD
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Publication Release Date: Dec. 22, 2010
Revision V1.06