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參數(shù)資料
| 型號： | AT91SAM9261-CJ |
| 廠商： | Atmel |
| 文件頁數(shù)： | 22/44頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ARM9 MPU 217BGA |
| 標(biāo)準(zhǔn)包裝： | 126 |
| 系列： | AT91SAM |
| 核心處理器： | ARM9 |
| 芯體尺寸： | 16/32-位 |
| 速度： | 190MHz |
| 連通性： | EBI/EMI，I²C，MMC，SPI，SSC，UART/USART，USB |
| 外圍設(shè)備： | DMA，LCD，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 96 |
| 程序存儲器容量： | 32KB（32K x 8） |
| 程序存儲器類型： | ROM |
| RAM 容量： | 192K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.08 V ~ 1.32 V |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 217-LFBGA |
| 包裝： | 托盤 |
| 配用： | AT91SAM9261-EK-ND - KIT EVAL FOR AT91SAM926EJ-S AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9 |
| 其它名稱： | AT91SAM9261B-CJ AT91SAM9261B-CJ-ND |
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6062LS–ATARM–23-Mar-09
AT91SAM9261
10.3
Peripheral Multiplexing on PIO Lines
The AT91SAM9261 features three PIO controllers, PIOA, PIOB and PIOC, that multiplex the I/O
lines of the peripheral set.
Each PIO Controller controls up to thirty-two lines. Each line can be assigned to one of two
page 33 define how the I/O lines of the peripherals A and B are multiplexed on the PIO Control-
lers. The two columns “Function” and “Comments” have been inserted for the user’s own
comments; they may be used to track how pins are defined in an application.
Note that some output only peripheral functions might be duplicated within the tables.
The column “Reset State” indicates whether the PIO line resets in I/O mode or in peripheral
mode. If I/O is mentioned, the PIO line resets in input with the pull-up enabled, so that the device
is maintained in a static state as soon as the reset is released. As a result, the bit corresponding
to the PIO line in the register PIO_PSR (Peripheral Status Register) resets low.
If a signal name is mentioned in the “Reset State” column, the PIO line is assigned to this func-
tion and the corresponding bit in PIO_PSR resets high. This is the case of pins controlling
memories, in particular the address lines, which require the pin to be driven as soon as the reset
is released. Note that the pull-up resistor is also enabled in this case.
10.3.1
Resource Multiplexing
10.3.1.1
LCD Controller
The LCD Controller can interface with several LCD panels. It supports 4, 8 or 16 bit-per-pixel
without any limitation. Interfacing 24 bit-per-pixel TFTs panel prevents using the SSC0 and the
chip select line 0 of the SPI1.
16 bit-per-pixel TFT panels are interfaced through peripheral B functions, as color data is output
on LCDD3 to LCDD7, LCDD11 to LCDD15 and LCDD19 to LCDD23. Intensity bit is output on
LCDD2, LCDD10 and LCDD18. Using the peripheral B does not prevent using the SSC0 and
the SPI1 lines.
10.3.1.2
ETM
Using the ETM prevents:
using the USART1 and USART2 control signals, in particular the SCK lines which are
required to use the USART as ISO7816 and the RTS and CTS to handle hardware
handshaking on the serial lines. In case the ETM and an ISO7816 connection are both
required, the USART0 has to be used as a Smart Card interface.
using the SSC1
addressing a static memory of more than 8 Mbytes, which requires the A23 and A24 address
lines
using the chip select lines 1 to 3 of SPI0 and SPI1
10.3.1.3
EBI
If not required, the NWAIT function (external wait request) can be deactivated by software,
allowing this pin to be used as a PIO.
10.3.1.4
32-bit Data Bus
Using a 32-bit Data Bus prevents:
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT91SAM9261-CJ-999 | 功能描述:ARM微控制器 - MCU BGA Ind. Temp RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT |
| AT91SAM9261-EK | 功能描述:開發(fā)板和工具包 - ARM Supports AT91SAM9261 ARM926EJS dev & eval RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V |
| AT91SAM9261S | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91 ARM Thumb-based Microcontrollers |
| AT91SAM9261S_09 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91 ARM Thumb-based Microcontrollers |
| AT91SAM9261SB-CU | 功能描述:ARM微控制器 - MCU 32-bit RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT |
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