MC68302EH16C Freescale Semiconductor, MC68302EH16C Datasheet - Page 434

• Manufacturer Part Number: MC68302EH16C
• Description: IC MPU MULTI-PROTOCOL 132-PQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68302EH16C

• Processor Type: M683xx 32-Bit
• Speed: 16MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-MQFP, 132-PQFP
• Controller Family/series: 68K
• Core Size: 32 Bit
• Ram Memory Size: 1152Byte
• Cpu Speed: 16MHz
• No. Of Timers: 3
• Embedded Interface Type: SCP, TDM
• Digital Ic Case Style: PQFP
• Rohs Compliant: Yes
• Family Name: M68000
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 16MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 5V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 132
• Package Type: PQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

SCC Programming Reference
CR—Rx CRC Error
OV—Overrun
CD—Carrier Detect Lost (valid only in NMSI mode)
E.1.1.4.2 Receive Buffer Data Length. This 16-bit value is written by the IMP to indicate
the number of data bytes received into the data buffer.
E.1.1.4.3 Receive Buffer Pointer. This 32-bit value is written by the user to indicate the
address where the data is to be stored.
E.1.1.5 TRANSMIT BUFFER DESCRIPTORS. Each SCC has eight transmit buffer
descriptors. Each buffer descriptor consists of four words as shown below. Reserved bits in
registers should be written as zeros.
E.1.1.5.1 Transmit BD Control/Status Word. To initialize the buffer, the user should write
bits 15-10 and bits 1-0. The IMP clears bit 15 when the buffer is transmitted or closed due
to an error and sets bits 1-0 depending on which error occurred.
R—Ready
X—External Buffer
W—Wrap (final BD in table)
E-12
OFFSET + 0
OFFSET +2
OFFSET +4
OFFSET +6
0 = This frame does not contain a CRC error.
1 = This frame contains a CRC error.
0 = No receiver overrun occurred.
1 = A receiver overrun condition occurred during frame reception.
0 = No CD lost was detected.
1 = CD was negated during frame reception.
0 = This data buffer is not currently ready for transmission.
1 = This data buffer has been prepared by the user for transmission but has not yet
0 = The data buffer associated with this BD is in internal dual-port RAM.
1 = The data buffer associated with this BD is in external memory.
0 = This is not the last BD in the transmit BD table.
1 = This is the last BD in the transmit BD table.
been fully transmitted. Must be set by the user to enable transmission of the buffer.
15
R
14
X
13
W
12
I
11
L
MC68360 USER’S MANUAL
TC
10
—
9
TX BUFFER POINTER
DATA LENGTH
—
8
—
7
—
6
—
5
—
4
—
3
—
2
MOTOROLA
UN
1
CT
0