MC68302EH16C Freescale Semiconductor, MC68302EH16C Datasheet - Page 372
![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
Available stocks
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MC68302EH16C
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135
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MC68302EH16C
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PANA
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MC68302EH16C
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MC68302EH16CB1
Manufacturer:
Freescale Semiconductor
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10 000
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Part Number:
MC68302EH16CR2
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
- MC68302AG20C PDF datasheet
- MC68302AG20C PDF datasheet #2
- MC68302AG20C PDF datasheet #3
- MC68302EH16C PDF datasheet #4
- Current page: 372 of 481
- Download datasheet (2Mb)
MC68302 Applications
D-22
* The Tx BD sand data status is not checked since the only one is CTS lost,
* which is not applicable, since CTS is ignored in this application.
* The following updates A2 to point to the next Tx BD
REINIT2 MOVEA.L
* Determine what the next byte to “echo” will be and then go to OUTERLOOP
NEWA1
* The two lines with ***
* If the number is increased, these values should be increased by the same
* amount. These are the only lines dependent on the Rx BD or Tx BD setup.
***************************************************************************
* SC C3 I nt er r up t R o u ti n e
* Test Break:
BRKTEST
*Test Receive:
RECTEST
* Busy handler:
BUSY
*Break handler:
BREAK
* The UART BRKEC will record the number of breaks received
*Receive handler:
RECEIVE
INCPTR
CONT
BSET.B
BTST.B
BNE.B
ADDA.W
BRA.B
ADDO.W
CMPA.L
BEQ.B
BRA.B
SUBO.W
BRA.B
ORG
CLR.L
MOVE.B
MOVE.B
BTST.B
BNE.B
BTST.B
BNE.B
BTST.B
BNE.B
JMP
ADDQ.B
BSET.B
JMP
NOP
JMP
ADDQ.W
ADDQ.B
ADDQ.W
CMPI.B
BNE.B
SUBQ.W
ANDI.W
#$7,(A2)
#$05,(A2)
REINIT2
#$08,A2
CONT
#$700640,A2
#$1,A1
#$30004,A1
NEWA1
OUTLOOP
#$02.A1
OUTLOOP
$30500
D1
SCCE3,D1
#$15,SCCE3
#$2.D1
BUSY
#$4,D1
BREAK
#$0,D1
RECEIVE
ALMDONE
#1,D5
#$F,(A0)
BRKTEST
RECTEST
#1,D3
#1,D6
#1,A0
#$0,(A0)
BSTAT
#1,A0
#$FF00,(A0)
MC68302 USER’S MANUAL
above are dependent on the number of Rx BDs used.
;Set Ready bit of Tx BD
;test Wrap bit
;If set, reinit A2 to 700640
;else inc A2 by 8 to next Tx BD
;Jump to Continue on
;Reinitialize A2
;Increment A1 to next byte to send
;Is A1 = 30004? ***
;If so, go to NEWA1
;Jump back to outerloop and wait
;Set A1 back to 30002 ?***
;Jump back to outerloop and wait
;clear D1
;Move SCCE3 status to D1
;Clear only BRK. BSY and RX in SCCE3.
;Is BSY set?
;Jump to BUSY handler if set
;Is BRK set?
;Jump to BREAK handler if set
;Is RX set?
;Jump to RECEIVE handler if set
;Jump to About Done (impossible)
;Inc Busy counter (no receive buffers)
;set Empty bit of current Rx BD
;Jump to test for BREAK
;This code ignores received breaks
;Jump to test for RECEIVE
;Increment number of chars received
;D6 inc by 1 (character ready to send)
;Inc A0 to point to Rx BD byte status
;Does status = 00?
;Jump to Bad Status it not 00
;Dec A0 to point to beginning of Rx BD
;Clear out Rx BD status
MOTOROLA
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