MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 512
MOD5234-100IR
Manufacturer Part Number
MOD5234-100IR
Description
MOD5234 10/100 ETHERNET MODULE
Manufacturer
NetBurner Inc
Type
Controllers & Processorsr
Datasheets
1.MOD5272-100IR.pdf
(3 pages)
2.MOD5234-100IR.pdf
(4 pages)
3.MOD5234-100IR.pdf
(754 pages)
Specifications of MOD5234-100IR
Interface
I²C, SPI, UART
Voltage - Supply
2.5V
Mounting Type
Surface Mount
Package / Case
Module
Product
Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Format
-
Baud Rates
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
Q4483564
- Current page: 512 of 754
- Download datasheet (13Mb)
DMA Timers (DTIM0–DTIM3)
24.3.1 Code Example
The following code provides an example of how to initialize DMA Timer0 and how to use the
timer for counting time-out periods.
DTMR0 EQU IPSBARx+0x400;Timer0 mode register
DTMR1 EQU IPSBARx+0x440 ;Timer1 mode register
DTRR0 EQU IPSBARx+0x404 ;Timer0 reference register
DTRR1 EQU IPSBARx+0x444 ;Timer1 reference register
DTCR0 EQU IPSBARx+0x408 ;Timer0 capture register
DTCR1 EQU IPSBARx+0x448 ;Timer1 capture register
DTCN0 EQU IPSBARx+0x40C ;Timer0 counter register
DTCN1 EQU IPSBARx+0x44C ;Timer1 counter register
DTER0 EQU IPSBARx+0x403 ;Timer0 event register
DTER1 EQU IPSBARx+0x443 ;Timer1 event register
* TMR0 is defined as: *
*[PS] = 0xFF,
*[CE] = 00
*[OM] = 0
*[ORRI] = 0,
*[FRR] = 1,
*[CLK] = 10,
*[RST] = 0,
The simple example below uses Timer0 to count time-out loops. A time-out occurs when the
reference value, 0xAFAF, is reached.
timer0_ex
TMR0[RST]
T0_LOOP
24-10
move.w #0xFF0C,D0
move.w D0,TMR0
move.l #0x0000,D0;writing to the timer counter with any
move.l DO,TCN0 ;value resets it to zero
move.l #AFAF,DO ;set the timer0 reference to be
move.l #D0,TRR0 ;defined as 0xAFAF
clr.l DO
clr.l D1
clr.l D2
move.l #0x0000,D0
move.l D0,TCN0
move.b #0x03,D0
move.b D0,TER0
move.w TMR0,D0
bset #0,D0
move.w D0,TMR0
move.b TER0,D1
divide clock by 256
disable capture event output
output=active-low pulse
disable ref. match output
restart mode enabled
system clock/16
timer0 disabled
MCF5235 Reference Manual, Rev. 2
;reset the counter to 0x0000
;writing ones to TER0[REF,CAP]
;clears the event flags
;save the contents of TMR0 while setting
;the 0 bit. This enables timer 0 and starts counting
;load
;load TER0 and see if
the
value
back
into
the
register,
Freescale Semiconductor
setting
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