Zilog Z16C30 Instrukcja Użytkownika Pobierz pdf (Strona 191)

8-36

Z16C30 USC

USER'S MANUAL

ZILOG

UM97USC0100

14 13 12 11 10 9 8 7 6 5 4 3 2 1 015

TxEncode

Transmit Mode Register (TMR) Register Address 0 b 11001

Bit(s)

Field/Bit

Name

Conditions

/Context

Description

Status

Ref Chapter: Section

TxPar

Enab

TMR15-13

TxCRCType

TxCRC

Start

TxCRC

Enab

TxCRC

atEnd

TxParType

TxLength TxEnable

TxEncode 000=don't encode TxD ("NRZ");

001=invert polarity of TxD ("NRZB");

010=encode TxD NRZI-Mark;

011=encode TxD NRZI-Space;

100=encode TxD Biphase-Mark (FM1);

101=encode TxD Biphase-Space (FM0);

110=encode TxD Biphase-Level (Manchester);

111=encode TxD Differential Biphase-Level

RW 4: Data Formats and

Encoding

TMR12-11

TxCRCType

00=use 16-bit CRC-CCITT for Tx;

01=use CRC-16 for Tx;

10=use 32-bit Ethernet CRC for Tx

5: Cyclic Redundancy

Checking

Sync

TMR10

TxCRCStart

0=start Transmit CRC generator as all zeros;

1=all ones

Sync

TMR9

TxCRCEnab

1=include Transmit characters in CRCSync

TMR8 TxCRCat

End

1=send accumulated CRC at EOF/EOMSync

TMR7-6 TxParType 00=Transmit Parity Even; 01=Odd;

10=Zero (Space); 11=One (Mark)

5: Parity Checking

TMR5 TxParEnab 1=accumulate and send Parity bits

TMR4-2 TxLength 000=send eight bit characters;

001-111=send 1-7 bit characters

5: The Mode Registers:

Character Length

TMR1-0 TxEnable 00=disable Transmitter (immediately);

01=disable Tx at end of message/frame/char;

10=enable Tx unconditionally;

11=auto-enable Tx per /CTS pin

5: The Mode Registers:

Enabling and Disabling

14 13 12 11 10 9 8 7 6 5 4 3 2 1 015

Transmit Sync Register (TSR) Register Address 0 b 11100

Bit(s)

Field/Bit

Name

Conditions

/Context

Description

Status

Ref Chapter: Section

RSR15-8

Transmit SYN1 Transmit Sync or SYN0

Second half of Transmit sync (SYN1) WR 4: Monosync and Bisync

Modes

4: Slaved Monosync Mode

Bisync

RSR7-0 Transmit Sync characterMonosync,

Slaved

Monosync

First half of Transmit sync (SYN0)Bisync

RW = Read/Write, RO = Read Only, WO = Write Only – for other codes see p. 8-10.

UM009402-0201

1 2 ... 186 187 188 189 190 191 192 193 194 195 196 ... 207 208

Komentarze do niniejszej Instrukcji

Brak uwag

Zilog Z16C30 Instrukcja Użytkownika Strona 191

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Czujniki Zilog Z16C30