MC68181 Datasheet, PDF(92/119 Page) Freescale Semiconductor, Inc – Advance Information ROAMING FLEX chip SIGNAL PROCESSOR

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

MC68181 Datasheet, PDF (92/119 Pages) Freescale Semiconductor, Inc – Advance Information ROAMING FLEX chip SIGNAL PROCESSOR

◁

MC68181

Freescale Semiconductor, Inc.

Decoder-to-Host Packet Descriptions

Table B-29 Short Message / Tone Only Vector Packet Bit Assignments (Continued)

Byte

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

Note:

1. V: = 010 for a Short Message/Tone Only Vector

WNâWord number of vector (2â87 decimal); describes the location of the vector word in the

frame

eâSet if more than 2 bit errors are detected in the word or, if after error correction, the check

character calculation fails

pâPhase on which the vector was found (0 = a, 1 = b, 2 = c, 3 = d)

dâData bits whose definition depend on the value of t in this packet according to the following

table

2. If this vector is received on a long address and the e bit in this packet is not set, the decoder will

send a Message Packet from the word location immediately following the Vector Packet. Except

for the short message on a non-network address (t = 0), all message bits in the Message Packet are

unused and should be ignored

Table B-30 Short Message / Tone Only Vector Definitions

t1t0 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0

Description

00 c3 c2 c1 c0 b3 b2 b1 b0 a3 a2 a1 a0 First 3 numeric chars1

01 s8 s7 s6 s5 s4 s3 s2 s1 s0 S2 S1 S0 8 sources (S) and 9 unused bits (s)

s1 s0 R0 N5 N4 N3 N2 N1 N0 S2 S1 S0

8 sources (S), message number (N),

message retrieval flag (R)2, and 2

unused bits (s)

spare message type

Note:

1. For long addresses, an extra 5 characters are sent in the Message Packet immediately following

the Vector Packet.

2. For a description of the R and N bits see the description of the same bits for numeric messages

in Appendix A.

3. t = Message typeâThese bits define the meaning of the âdâ bits in this packet.

x = Unused bitsâThe value of these bits is not guaranteed.

NUMERIC VECTOR PACKET

Table B-31 Numeric Vector Packet Bit Assignments

Byte

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1

WN6

WN5

WN4

WN3

WN2

WN1

Bit 0

WN0

B-32

MC68181 Technical Data Sheet

For More Information On This Product,

Go to: www.freescale.com

MOTOROLA

▷