MK50H25(1994) 데이터 시트보기 (PDF) - STMicroelectronics

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MK50H25
(Rev.:1994)

HIGH SPEED LINK LEVEL CONTROLLER

STMicroelectronics 

MK50H25

Table A - MK50H25 Command/Response Repertoire

Modulo 8 Operation

FORMAT

COMMAND

Information Transfer

Supervisory

Unnumbered

I

RR

RNR

REJ

*UI

SABM

DISC

*XID

TEST

RESPONSE

I

RR

RNR

REJ

*UI

DM

UA

FRMR

*XID

TEST

ENCODING

LSB

1234

0 ← N(S) →

1000

1010

1001

1100

1111

1111

1100

1100

1110

1111

1100

MSB

5678

P ← N(R) →

P/F ← N(R) →

P/F ← N(R) →

P/F ← N(R) →

P/F 0 0 0

P1 0 0

F0 0 0

P0 1 0

F1 1 0

F0 0 1

P/F 1 0 1

P/F 1 1 1

Table B - MK50H25 Command/Response Repertoire

Modulo 128 Operation

FORMAT

Information

Transfer

COMMAND

RESPONSE ENCODING

LSB

123

45

678

I

I

0

N(S)

MSB

9 10-16

P N(R)

Supervisory RR

RR

1 0 0 0 0 0 0 0 P/F N(R)

RNR

RNR

1 0 1 0 0 0 0 0 P/F N(R)

REJ

REJ

1 0 0 1 0 0 0 0 P/F N(R)

Unnumbered SABME

1 1 1 1 P 1 1 0 N/A

All Others All Others

Same Repertoire and Encoding as for Modulo 8

Notes:

1. N(S) = Transmitter Send Sequence Number

2. N(R) = Transmitter Receive Sequence Number

3. P/F = Poll bit when issued as a command. Final bit when issued as a response.

4. N/A = Not Applicable. All Unnumbered frames have only an 8 bit Control Field for Modulo 128 or Modulo 8 operation.

*XID and UI frames can be enabled individually by setting the appropriate bits in CSR2.

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