MC68302EH16C Freescale Semiconductor, MC68302EH16C Datasheet - Page 373
![IC MPU MULTI-PROTOCOL 132-PQFP](/photos/6/76/67684/mc68302eh16c_sml.jpg)
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
- Current page: 373 of 481
- Download datasheet (2Mb)
D.5 INDEPENDENT DMA IN THE MC68302
Moving of data between a high-speed peripheral controller and memory is optimized when
a direct memory access (DMA) controller is used. The MC68302 contains an independent
direct memory access (IDMA) controller. Engineers developing system architectures requir-
ing both the M68000 microprocessor and DMA can use the MC68302 to obtain both building
blocks in one package.
The registers associated with the programming of the IDMA are as follows: six IDMA regis-
ters, four interrupt controller registers, and one parallel l/O register (see Table D-1).
D.5.1 IDMA Overview
The IDMA can transfer data between any combination of memory and l/O, in either byte or
word quantities with even or odd source and destination addresses. Each IDMA transfer re-
quires two fundamental operations: reading data from a source address and writing data to
a destination address. A pointer to the source data is contained in the source address point-
MOTOROLA
REINIT0 MOVEA.L
*Bad Status:
BSTAT
*Note that the UART FRMEC, NOSEC, and PAREC counters record bad status.
* Almost Done:
ALMDONE
END
BSET.B
BTST.B
BNE.B
ADDA.W
BRA.B
BRA.B
NOP
BRA.B
MOVE.W
RTE
Acronym
PACNT
DAPR
SAPR
GIMR
CMR
BCR
CSR
FCR
IMR
IPR
ISR
#$07,(A0)
#$05,(A0)
REINIT0
#$08,A0
ALMDONE
#$700600,A0
ALMDONE
INCPTR
#$0100,1SR
Channel Mode Register
Source Address Pointer Register
Destination Address Pointer Register
Byte Count Register
Channel Status Register
Function Code Register
Global Interrupt Mode Register
Interrupt Pending Register
Interrupt Mask Register
Interrupt In-Service Register
Port A Control Register
Table D-1. IDMA Registers
MC68302 USER’S MANUAL
Register
;Set Empty bit of Rx BD
;test Wrap bit
;It set, reinit A0 to 700600
;else inc A0 by 8 to next Rx BD
;Jump to Almost Done
;Reinitialize A0
;Jump to almost Done
;Bad status handler would go here
;Jump back to Receive handler
;Clear SCC3 bit in the ISR
;end of interrupt handler
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Address
MC68302 Applications
D-23
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