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SPI Packets

Host-to-Decoder Packet Descriptions

Receiver On Setting Packets

Table B-15 Receiver On Setting Packet Bit Assignments

Byte

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

0

0

0

1

s3

s2

s1

s0

 

 

 

 

 

 

 

 

 

2

0

0

0

0

LBC

0

0

0

 

 

 

 

 

 

 

 

 

1

CLS7

CLS6

CLS5

CLS4

CLS3

CLS2

CLS1

CLS0

 

 

 

 

 

 

 

 

 

0

0

0

0

0

0

0

0

0

 

 

 

 

 

 

 

 

 

SETTING NUMBER (s)

These bits define the receiver control setting for which this packet’s values are to be applied. The following truth table shows the names of each of the values for “s” that apply to this packet.

Table B-16 Setting Number Bit Definitions

s3

s2

s1

s0

Setting Name

 

 

 

 

 

 

 

 

 

 

0

1

1

1

1600 sps Sync

 

 

 

 

 

1

0

0

0

3200 sps Data

 

 

 

 

 

1

0

0

1

1600 sps Data

 

 

 

 

 

LOW BATTERY CHECK (LBC)

If this bit is set, the FLEXchip IC will check the status of the LOBAT port just before leaving this receiver state. The value after reset = 0.

CONTROL LINE SETTING (CLS)

This is the value to be output on the receiver control lines (S0–S7) for this receiver state. The value after reset = 0.

MOTOROLA

MC68175/D, Preliminary

B-17

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