EFM32G200F64 Energy Micro, EFM32G200F64 Datasheet - Page 49
![MCU 32BIT 64KB FLASH 32-QFN](/photos/28/61/286134/32-qfn_sml.jpg)
EFM32G200F64
Manufacturer Part Number
EFM32G200F64
Description
MCU 32BIT 64KB FLASH 32-QFN
Manufacturer
Energy Micro
Series
Geckor
Datasheets
1.EFM32G200F16.pdf
(63 pages)
2.EFM32G200F16.pdf
(10 pages)
3.EFM32G200F16.pdf
(463 pages)
4.EFM32G200F16.pdf
(136 pages)
Specifications of EFM32G200F64
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
32MHz
Connectivity
EBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
24
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.8 V
Data Converters
A/D 4x12b, D/A 1x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad
Processor Series
EFM32G200
Core
ARM Cortex-M3
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
I2C, UART
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
24
Number Of Timers
2
Operating Supply Voltage
1.8 V to 3.8 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- EFM32G200F16 PDF datasheet
- EFM32G200F16 PDF datasheet #2
- EFM32G200F16 PDF datasheet #3
- EFM32G200F16 PDF datasheet #4
- Current page: 49 of 463
- Download datasheet (8Mb)
2010-09-06 - d0001_Rev1.00
1
that you must configure the alternate data structure.
See Section 8.4.3.3 (p. 53) for more information.
Figure 8.5 (p. 49) shows a peripheral scatter-gather example.
Figure 8.5. Peripheral scatter-gather example
In Figure 8.5 (p. 49) :
Initialization
The peripheral scatter-gather transaction commences when the controller receives a request on
dma_req[ ]. The transaction continues as follows:
Initialization:
Peripheral scatter-gather transaction:
Because the R_power field is set to four, you must set N to be a multiple of four. The value given by N/4 is the number of times
Bit
[13:4]
[3]
Request
Data for Task A
Data for Task B
Data for Task C
Data for Task D
1. Configure prim ary to enable the copy A, B, C, and D operations: cycle_ctrl = b110, 2
2. Write the prim ary source data in m em ory, using the structure shown in the following table.
Field
n_minus_1
next_useburst
m em ory, to Alternate
m em ory, to Alternate
m em ory, to Alternate
m em ory, to Alternate
Copy from A in
Copy from B in
Copy from C in
Copy from D in
Pr im a r y
src_data_end_ptr
0x0A000000
0x0B000000
0x0C000000
0x0D000000
1. The host processor configures the primary data structure to operate in peripheral
2. The host processor writes the data structure for tasks A, B, C, and D to the
3. The host processor enables the channel.
Value
N
-
1
scatter-gather mode by setting cycle_ctrl to b110. Because a data structure for a
single channel consists of four words then you must set 2
there are four tasks and therefore N is set to 16.
memory locations that the primary src_data_end_ptr specifies.
Request
Request
Request
Request
Request
Request
Description
Configures the controller to perform N DMA transfers, where N is a multiple of four
When set to 1, the controller sets the chnl_useburst_set [C] bit to 1 after the
alternate transfer completes
dst_data_end_ptr
0x0AE00000
0x0BE00000
0x0CE00000
0x0DE00000
Alt e r n a t e
Task C
Task D
Task A
Task B
channel_cfg
cycle_ctrl = b111, 2
cycle_ctrl = b111, 2
cycle_ctrl = b111, 2
cycle_ctrl = b001, 2
alternate channel control data structure
For all prim ary to alternate transitions,
...the world's most energy friendly microcontrollers
N = 3, 2
N = 8, 2
N = 5, 2
N = 4, 2
arbitration process and im m ediately
perform s the DMA transfer that the
the controller does not enter the
49
R
R
R
R
R
R
R
R
= 4, N = 3
= 2, N = 8
= 8, N = 5
= 4, N = 4
= 4
= 2
= 8
= 4
specifies.
Unused
0xXXXXXXXX
0xXXXXXXXX
0xXXXXXXXX
0xXXXXXXXX
dm a _don e [ C]
R
= 4, N = 16.
www.energymicro.com
R
to 4. In this example,
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