AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 394
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
AT91SAM7X128
Manufacturer Part Number
AT91SAM7X128
Description
MCU 32-Bit 91S ARM7TDMI RISC 128KB Flash 1.8V/3.3V 100-Pin LQFP
Manufacturer
Atmel
Datasheet
1.AT91SAM7X512-AU-999.pdf
(687 pages)
Specifications of AT91SAM7X128
Package
100LQFP
Device Core
ARM7TDMI
Family Name
91S
Maximum Speed
55 MHz
Ram Size
32 KB
Program Memory Size
128 KB
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Program Memory Type
Flash
Number Of Programmable I/os
62
Interface Type
CAN/Ethernet/SPI/I2S/TWI/USART/USB
On-chip Adc
8-chx10-bit
Operating Temperature
-40 to 85 °C
Number Of Timers
3
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7X128-AU
Manufacturer:
ATMEL
Quantity:
1 045
Part Number:
AT91SAM7X128-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
AT91SAM7X128-CU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT91SAM7X128B-AU
Manufacturer:
Atmel
Quantity:
1 929
Part Number:
AT91SAM7X128B-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 394 of 687
- Download datasheet (11Mb)
32.5.4
32.5.5
32.5.6
394
AT91SAM7X512/256/128 Preliminary
Clock Control
TC Operating Modes
Trigger
The clock of each counter can be controlled in two different ways: it can be enabled/disabled
and started/stopped. See
•
•
Figure 32-4. Clock Control
Each channel can independently operate in two different modes:
•
•
The TC Operating Mode is programmed with the WAVE bit in the TC Channel Mode Register.
In Capture Mode, TIOA and TIOB are configured as inputs.
In Waveform Mode, TIOA is always configured to be an output and TIOB is an output if it is not
selected to be the external trigger.
A trigger resets the counter and starts the counter clock. Three types of triggers are common to
both modes, and a fourth external trigger is available to each mode.
The following triggers are common to both modes:
The clock can be enabled or disabled by the user with the CLKEN and the CLKDIS
commands in the Control Register. In Capture Mode it can be disabled by an RB load event
if LDBDIS is set to 1 in TC_CMR. In Waveform Mode, it can be disabled by an RC Compare
event if CPCDIS is set to 1 in TC_CMR. When disabled, the start or the stop actions have no
effect: only a CLKEN command in the Control Register can re-enable the clock. When the
clock is enabled, the CLKSTA bit is set in the Status Register.
The clock can also be started or stopped: a trigger (software, synchro, external or compare)
always starts the clock. The clock can be stopped by an RB load event in Capture Mode
(LDBSTOP = 1 in TC_CMR) or a RC compare event in Waveform Mode (CPCSTOP = 1 in
TC_CMR). The start and the stop commands have effect only if the clock is enabled.
Capture Mode provides measurement on signals.
Waveform Mode provides wave generation.
Selected
Counter
Clock
Clock
Figure
Q
32-4.
R
S
Trigger
CLKSTA
Q
CLKEN
S
R
Event
Stop
CLKDIS
Disable
Event
6120H–ATARM–17-Feb-09
Related parts for AT91SAM7X128
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![AT91SAM9R64-CU](/photos/12/13/121356/144-lfbga_tmb.jpg)
Part Number:
Description:
MCU ARM9 64K SRAM 144-LFBGA
Manufacturer:
Atmel
Datasheet:
![AT91SAM7A3-AU](/photos/6/76/67646/313-100-lqfp_tmb.jpg)
Part Number:
Description:
IC ARM7 MCU FLASH 256K 100LQFP
Manufacturer:
Atmel
Datasheet:
![AT91SAM9G20B-CU](/photos/12/13/121366/217-lfbga_tmb.jpg)
Part Number:
Description:
IC ARM9 MPU 217-LFBGA
Manufacturer:
Atmel
Datasheet:
![AT91SAM9261B-CU](/photos/12/13/121366/217-lfbga_tmb.jpg)
Part Number:
Description:
MCU ARM9 ULTRA LOW PWR 217-LFBGA
Manufacturer:
Atmel
Datasheet:
![AT91SAM9G45-CU](/photos/12/13/121367/324-tfbga-pkg_tmb.jpg)
Part Number:
Description:
MCU ARM9 324-TFBGA
Manufacturer:
Atmel
Datasheet:
![AT91SAM9G10-CU](/photos/12/13/121366/217-lfbga_tmb.jpg)
Part Number:
Description:
IC MCU ARM9 SAMPLING 217CBGA
Manufacturer:
Atmel
Datasheet:
![AT91SAM9260B-CU](/photos/12/13/121366/217-lfbga_tmb.jpg)
Part Number:
Description:
IC ARM9 MCU 217-LFBGA
Manufacturer:
Atmel
Datasheet:
![AT91SAM9260B-QU](/photos/6/73/67311/313-208-pqfp_tmb.jpg)
Part Number:
Description:
IC ARM9 MCU 208-PQFP
Manufacturer:
Atmel
Datasheet:
![AT91SAM7X512-AU](/photos/6/76/67646/313-100-lqfp_tmb.jpg)
Part Number:
Description:
MCU ARM 512K HS FLASH 100-LQFP
Manufacturer:
Atmel
Datasheet:
![AT91SAM7X512-CU](/photos/6/89/68968/313-100-cbga_tmb.jpg)
Part Number:
Description:
MCU ARM 512K HS FLASH 100-TFBGA
Manufacturer:
Atmel
Datasheet:
![AT91SAM9263B-CU](/photos/12/13/121367/324-tfbga-pkg_tmb.jpg)
Part Number:
Description:
IC ARM9 MCU 200 MHZ 324-TFBGA
Manufacturer:
Atmel
Datasheet:
![AT91RM9200-CJ-002](/photos/12/32/123245/256-bga_tmb.jpg)
Part Number:
Description:
IC ARM MCU 16BIT 128K 256BGA
Manufacturer:
Atmel
Datasheet:
![AT91SAM7S128-AU-001](/photos/12/13/121332/313-64-tqfp_tmb.jpg)
Part Number:
Description:
IC ARM7 MCU 32BIT 128K 64LQFP
Manufacturer:
Atmel
Datasheet:
![AT91SAM7SE256-AU](/photos/6/71/67112/128-lqfp_tmb.jpg)
Part Number:
Description:
IC ARM7 MCU FLASH 256K 128-LQFP
Manufacturer:
Atmel
Datasheet:
![AT91SAM7SE512-AU](/photos/6/71/67112/128-lqfp_tmb.jpg)
Part Number:
Description:
IC ARM7 MCU FLASH 512K 128-LQFP
Manufacturer:
Atmel
Datasheet: