MC68000 MOTOROLA [Motorola, Inc], MC68000 Datasheet - Page 199
MC68000
Manufacturer Part Number
MC68000
Description
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68000.pdf
(480 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68000-10/BZAJC
Manufacturer:
MOT
Quantity:
26
Company:
Part Number:
MC68000-8BXAJ
Manufacturer:
MOT
Quantity:
9
Company:
Part Number:
MC680008FN8
Manufacturer:
FREESCALE
Quantity:
8 831
Company:
Part Number:
MC68000FN10
Manufacturer:
MOT
Quantity:
5 510
Part Number:
MC68000FN10
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
Company:
Part Number:
MC68000FN12
Manufacturer:
MOT
Quantity:
5 510
Part Number:
MC68000L8
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
Part Number:
MC68000P10
Manufacturer:
MOT
Quantity:
20 000
- Current page: 199 of 480
- Download datasheet (2Mb)
The first word of the Tx BD contains status and control bits. Bits 15–10 are prepared by the
user before transmission; bits 1–0 are set by the HDLC controller after the buffer has been
transmitted. Bit 15 is set by the user when the buffer and BD have been prepared and is
cleared by the HDLC controller after the frame has been transmitted.
R—Ready
X—External Buffer
W—Wrap (Final BD in Table)
I—Interrupt
L—Last
TC—Tx CRC
Bits 9–2—Reserved for future use.
The following status bits are written by the HDLC controller after it has finished transmitting
the associated data buffer.
MOTOROLA
This bit is valid only when the last (L) bit is set.
0 = This buffer is not currently ready for transmission. The user is free to manipulate
1 = The data buffer, which has been prepared for transmission by the user, has not yet
0 = The buffer associated with this BD is in internal dual-port RAM.
1 = The buffer associated with this BD is in external memory.
0 = This is not the last BD in the Tx BD table.
1 = This is the last BD in the Tx BD table. After this buffer has been used, the HDLC
0 = No interrupt is generated after this buffer has been serviced.
1 = Either TXB or TXE in the HDLC event register will be set when this buffer has been
0 = This is not the last buffer in the frame.
1 = This is the last buffer in the current frame.
0 = Transmit the closing flag after the last data byte. This setting can be used for test-
1 = Transmit the CRC sequence after the last data byte.
this BD (or its associated buffer). The HDLC controller clears this bit after the buffer
has been fully transmitted or after an error condition has been encountered.
transmitted. No fields of this BD may be written by the user once this bit is set.
controller will transmit data from the first BD in the table.
serviced by the HDLC controller, which can cause an interrupt.
ing purposes to send a “bad” CRC after the data.
The user is required to set the wrap bit in one of the first eight
BDs; otherwise, errant behavior may occur.
MC68302 USER’S MANUAL
NOTE
Communications Processor (CP)
4-79
Related parts for MC68000
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Motorola, Inc [VOLTAGE REGULATOR]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
6367254 MOTOROLA SC (XSTRS/R F)
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
MC1494LMotorola, Inc [MONOLITHIC FOUR-QUADRANT MULTIPLIER]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
MC1466LMotorola, Inc [PRECISION WIDE RANGE VOLTAGE AND CURRENT REGULATOR]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
MC145532DWMotorola, Inc [ADPCM Transcoder]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
Silicon Controlled Rectifiers
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
RF Power Field Effect Transistors N-Channel Enhancement-Mode Lateral MOSFETs
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
RF POWER FIELD EFFECT TRANSISTORS
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
LATERAL N-CHANNEL BROADBAND RF POWER MOSFETs
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
RF POWER FIELD EFFECT TRANSISTOR
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
RF LOW POWER TRANSISTOR NPN SILICON
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
PLASTIC SURFACE MOUNT ZENER DIODES 1.5 WATTS 3.3-68 VOLTS
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
OVERVOLTAGE TRANSIENT SUPPRESSOR
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
TMOS POWER FET 15 AMPERES 60 VOLTS
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
Part Number:
Description:
TMOS POWER FET LOGIC LEVEL 19 AMPERES 30 VOLTS RDS(on) = 0.099 OHM
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet: