DS2152 datasheet(60/94 Pages) DALLAS

60 / 94 page

DS2152

60 of 93

RPRM: RECEIVE RPM REGISTER (Address=03 Hex)

(MSB)

(LSB)

RABT

RCRCE

ROVR

RVM

REMPTY

POK

CBYTE

OBYTE

SYMBOL

POSITION

NAME AND DESCRIPTION

RABT

RPRM.7

Abort Sequence Detected. Set whenever the HDLC controller

sees 7 or more 1s in a row.

RCRCE

RPRM.6

CRC Error. Set when the CRC checksum is in error.

ROVR

RPRM.5

Overrun. Set when the HDLC controller has attempted to write

a byte into an already full receive FIFO.

RVM

RPRM.4

Valid Message. Set when the HDLC controller has detected and

checked a complete HDLC packet.

REMPTY

RPRM.3

Empty. A real-time bit that is set high when the receive FIFO is

empty.

POK

RPRM.2

Packet OK. Set when the byte available for reading in the

receive FIFO at RFDL is the last byte of a valid message (and

hence no abort was seen, no overrun occurred, and the CRC was

correct).

CBYTE

RPRM.1

Closing Byte. Set when the byte available for reading in the

receive FIFO at RFDL is the last byte of a message (whether the

message was valid or not).

OBYTE

RPRM.0

Opening Byte. Set when the byte available for reading in the

receive FIFO at RFDL is the first byte of a message.

NOTE:

The RABT, RCRCE, ROVR, and RVM bits are latched and will be cleared when read.

DS2152 Datasheet(PDF) 60 Page - Dallas Semiconductor

DS2152 Datasheet(HTML) 60 Page - Dallas Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94

Datasheet Download

Link URL