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參數(shù)資料
| 型號： | MC94MX21DVKN3R2 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 350 MHz, MICROPROCESSOR, PBGA289 |
| 封裝： | 14 X 14 MM, 1.41 MM HEIGHT, 0.65 MM PITCH, LEAD FREE, PLASTIC, BGA-289 |
| 文件頁數(shù)： | 67/98頁 |
| 文件大小： | 1326K |
| 代理商： | MC94MX21DVKN3R2 |
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Signal Descriptions
MC94MX21 Technical Data, Rev. 1.
5
Freescale Semiconductor
7
TEST_WB[4:3]
These are special factory test signals. To ensure proper operation, leave these signals as no connects.
WKGD
Battery indicator input used to qualify the walk-up process. Also multiplexed with TIN.
JTAG
For termination recommendations, see the Table “JTAG pinouts” in the Multi-ICE User Guide from ARM Limited.
TRST
Test Reset Pin—External active low signal used to asynchronously initialize the JTAG controller.
TDO
Serial Output for test instructions and data. Changes on the falling edge of TCK.
TDI
Serial Input for test instructions and data. Sampled on the rising edge of TCK.
TCK
Test Clock to synchronize test logic and control register access through the JTAG port.
TMS
Test Mode Select to sequence the JTAG test controller’s state machine. Sampled on the rising edge of
TCK.
JTAG_CTRL
JTAG Controller select signal—JTAG_CTRL is sampled during the rising edge of TRST. Must be pulled
to logic high for proper JTAG interface to debugger. Pulling JTAG_CRTL low is for internal test purposes
only.
RTCK
JTAG Return Clock used to enhance stability of JTAG debug interface devices. This signal is multiplexed
with 1-Wire, therefore using 1-Wire renders RTCK unusable and vice versa.
CMOS Sensor Interface
CSI_D [7:0]
Sensor port data
CSI_MCLK
Sensor port master clock
CSI_VSYNC
Sensor port vertical sync
CSI_HSYNC
Sensor port horizontal sync
CSI_PIXCLK
Sensor port data latch clock
LCD Controller
LD [17:0]
LCD Data Bus—All LCD signals are driven low after reset and when LCD is off. LD[15:0] signals are
multiplexed with SLCDC1_DAT[15:0] from SLCDC1 and BMI_D[15:0]. LD[17] signal is multiplexed with
BMI_WRITE of BMI. LD[16] is multiplexed with BMI_READ_REQ of BMI and EXT_DMAGRANT.
FLM_VSYNC
(or simply referred
to as VSYNC)
Frame Sync or Vsync—This signal also serves as the clock signal output for gate
driver (dedicated signal SPS for Sharp panel HR-TFT). This signal is multiplexed with BMI_RXF_FULL
and BMI_WAIT of the BMI.
LP_HSYNC (or simply
referred to as HSYNC)
Line Pulse or HSync
LSCLK
Shift Clock. This signal is multiplexed with the BMI_CLK_CS from BMI.
OE_ACD
Alternate Crystal Direction/Output Enable.
CONTRAST
This signal is used to control the LCD bias voltage as contrast control. This signal is multiplexed with the
BMI_READ from BMI.
SPL_SPR
Sampling start signal for left and right scanning. This signal is multiplexed with the SLCDC1_CLK.
PS
Control signal output for source driver (Sharp panel dedicated signal). This signal is multiplexed with the
SLCDC1_CS.
CLS
Start signal output for gate driver. This signal is invert version of PS (Sharp panel dedicated signal). This
signal is multiplexed with the SLCDC1_RS.
REV
Signal for common electrode driving signal preparation (Sharp panel dedicated signal). This signal is
multiplexed with SLCDC1_D0.
Table 2. i.MX21 Signal Descriptions (Continued)
Signal Name
Function/Notes
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
MC94MX21DVKN3
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC94MX21DVKN3R2 | 制造商:Freescale Semiconductor 功能描述:32-bit Embedded Microprocessors |
| MC950 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:INTEGRATED CIRCUITS |
| MC951 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:INTEGRATED CIRCUITS |
| MC952 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:INTEGRATED CIRCUITS |
| MC953 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:INTEGRATED CIRCUITS |
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