SM8213 datasheet(25/33 Pages) NPC

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SM8213AM

NIPPON PRECISION CIRCUITS—25

Bit 9

Sync code preceding data reception receive status

ﬂag.

When 1, indicates that there are 2 or less random bit

errors.

This ﬂag is useful in determining data reliability.

Bits 10 to 11

Received message (or address) error correction indi-

cator ﬂags.

Note that 2-bit random errors and 3-bit (or more)

errors are not corrected.

When the transmitted data is an address, a 2-bit ran-

dom error condition is indicated when bits 10 and 11

are both 1.

Bit 12

Parity error indicator ﬂag.

When 1, indicates a parity error.

When 0, indicates no parity error.

Bits 13 to 32

Message (or address) bits.

These bits represent the message (or address) con-

tent, output with MSB ﬁrst.

End-of-message Data

These bits represent data at the end of a message

(including when using the break command). The

end-of-message data is as follows:

Bits 1 to 3

All 3 bits are set to 1.

Bits 4 to 8

All 5 bits are set to 0.

Bit 9

Sync code preceding data reception receive status

ﬂag.

When 1, indicates that there are 2 or less random bit

errors.

Bits 10 to 12

These bits are unknown data to be ignored.

Bits 13 to 32

All bits are set to 0.

ERR 1

ERR 0

Condition

No errors

1-bit error

2-bit continuous (burst) error

2-bit random or 3-bit (or more) error

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