MC68302EH16C Freescale Semiconductor, MC68302EH16C Datasheet - Page 249
MC68302EH16C
Manufacturer Part Number
MC68302EH16C
Description
IC MPU MULTI-PROTOCOL 132-PQFP
Manufacturer
Freescale Semiconductor
Datasheets
1.MC68302AG20C.pdf
(4 pages)
2.MC68302AG20C.pdf
(2 pages)
3.MC68302AG20C.pdf
(13 pages)
4.MC68302EH16C.pdf
(481 pages)
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
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- MC68302AG20C PDF datasheet
- MC68302AG20C PDF datasheet #2
- MC68302AG20C PDF datasheet #3
- MC68302EH16C PDF datasheet #4
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- Download datasheet (2Mb)
4.5.16.7 Transparent Mode Register
Each SCC mode register is a 16-bit, memory-mapped, read-write register that controls the
SCC operation. The term transparent mode register refers to the protocol-specific bits (15–
6) of the SCC mode register when that SCC is configured for transparent mode. The trans-
parent mode register is cleared by reset. All undefined bits should be written with zero.
Bit 15—Reserved for future use; should be written with zero.
EXSYN — External Sync Mode
NTSYN—No Transmit SYNC
REVD—Reverse Data
MOTOROLA
2. Carrier Detect Lost During Message Reception—When this error occurs and the chan-
3. Busy Condition—If the RISC controller tries to use an Rx BD that is not empty, the
When this mode is selected, the receiver and transmitter expect external logic to indicate
the beginning of the data field by using the CD1/L1SY1 pin, if SCC1 is used, and the CD2
and CD3 pins, respectively, if SCC2 or SCC3 is used. In this mode, there is no carrier de-
tect function for the SCC.
When the channel is programmed to work through the serial channels physical interface
(IDL or GCI) and EXSYN is set, the layer 1 logic carries out the synchronization using the
L1SY1 pin. In PCM mode, the L1SY1–L1SY0 pins are used. In NMSI mode, the CD pins
(and the CD timing) are used to synchronize the data. CD should go low on the second
valid data bit of the receive data stream.
If this bit is cleared, the receiver will look for the SYN1–SYN2 sequence in the data syn-
chronization register to achieve synchronization, and the transmitter uses the CTS pin ac-
cording to the DIAG1–DIAG0 bits in the SCM. The receiver also uses the CD pin
according to the DIAG1–DIAG0 bits in the SCM.
This bit must be set for the SCC to operate in a totally transparent (promiscuous) mode.
When this bit is set, the receiver and transmitter will reverse the character bit order, trans-
mitting the most significant bit first.
15
—
the buffer, sets the overrun (OV) bit in the BD, and generates the RX interrupt (if en-
abled). The receiver then enters hunt mode immediately.
nel is not programmed to control this line with software, the channel terminates recep-
tion, closes the buffer, sets the carrier detect lost (CD) bit in the BD, and generates the
RX interrupt (if enabled). This error has the highest priority; the rest of the message is
lost and no other errors are checked. The receiver then enters hunt mode immediately.
busy condition is encountered. No data is received and the current Rx BD is left un-
modified. After new buffers are provided, the user should issue the ENTER HUNT
MODE command.
EXSYN
14
NTSYN
13
REVD
12
11
—
MC68302 USER’S MANUAL
10
—
—
9
—
8
7
—
Communications Processor (CP)
6
—
5
COMMON SCC MODE BITS
4-129
0
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