Table 24-7. UCRn Field Descriptions Bits Value Co" />
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� MCF5270CVM150R2
寤犲晢锛� Freescale Semiconductor
鏂囦欢闋佹暩(sh霉)锛� 389/626闋�
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC MCU 32BIT 150MHZ 196-MAPBGA
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 750
绯诲垪锛� MCF527x
鏍稿績铏曠悊鍣細 Coldfire V2
鑺珨灏哄锛� 32-浣�
閫熷害锛� 150MHz
閫i€氭€э細 EBI/EMI锛屼互澶恫(w菐ng)锛孖²C锛孲PI锛孶ART/USART
澶栧湇瑷�(sh猫)鍌欙細 DMA锛學DT
杓稿叆/杓稿嚭鏁�(sh霉)锛� 97
绋嬪簭瀛樺劜(ch菙)鍣ㄩ鍨嬶細 ROMless
RAM 瀹归噺锛� 64K x 8
闆诲 - 闆绘簮 (Vcc/Vdd)锛� 1.4 V ~ 1.6 V
鎸暕鍣ㄥ瀷锛� 澶栭儴
宸ヤ綔婧害锛� -40°C ~ 85°C
灏佽/澶栨锛� 196-LBGA
鍖呰锛� 甯跺嵎 (TR)
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Memory Map/Register Definition
MCF5271 Reference Manual, Rev. 2
Freescale Semiconductor
24-11
Table 24-7. UCRn Field Descriptions
Bits
Value
Command
Description
6鈥�4
MISC Field (This field selects a single command.)
000
NO COMMAND
鈥�
001
RESET MODE
REGISTER POINTER
Causes the mode register pointer to point to UMR1n.
010
RESET RECEIVER
Immediately disables the receiver, clears USRn[FFULL,RxRDY], and reinitializes
the receiver FIFO pointer. No other registers are altered. Because it places the
receiver in a known state, use this command instead of RECEIVER DISABLE when
reconfiguring the receiver.
011
RESET TRANSMITTER
Immediately disables the transmitter and clears USRn[TxEMP,TxRDY]. No other
registers are altered. Because it places the transmitter in a known state, use this
command instead of TRANSMITTER DISABLE when reconfiguring the transmitter.
100
RESET ERROR
STATUS
Clears USRn[RB,FE,PE,OE]. Also used in block mode to clear all error bits after
a data block is received.
101
RESET BREAK
鈥�
CHANGE INTERRUPT
Clears the delta break bit, UISRn[DB].
110
START BREAK
Forces UnTXD low. If the transmitter is empty, the break may be delayed up to one
bit time. If the transmitter is active, the break starts when character transmission
completes. The break is delayed until any character in the transmitter shift register
is sent. Any character in the transmitter holding register is sent after the break. The
transmitter must be enabled for the command to be accepted. This command
ignores the state of UnCTS.
111
STOP BREAK
Causes UnTXD to go high (mark) within two bit times. Any characters in the
transmit buffer are sent.
3鈥�2
TC Field (This field selects a single command)
00
NO ACTION TAKEN
Causes the transmitter to stay in its current mode: if the transmitter is enabled, it
remains enabled; if the transmitter is disabled, it remains disabled.
01
TRANSMITTER
ENABLE
Enables operation of the channel鈥檚 transmitter. USRn[TxEMP,TxRDY] are set. If
the transmitter is already enabled, this command has no effect.
10
TRANSMITTER
DISABLE
Terminates transmitter operation and clears USRn[TxEMP,TxRDY]. If a character
is being sent when the transmitter is disabled, transmission completes before the
transmitter becomes inactive. If the transmitter is already disabled, the command
has no effect.
11
鈥�
Reserved, do not use.
鐩搁棞(gu膩n)PDF璩囨枡
PDF鎻忚堪
VI-B2P-IY-F3 CONVERTER MOD DC/DC 13.8V 50W
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MC9328MXLVP20R2 IC MCU I.MX 200MHZ 225-MAPBGA
VI-B2M-IY-F4 CONVERTER MOD DC/DC 10V 50W
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