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鍙冩暩(sh霉)璩囨枡
鍨嬭櫉锛� MC908JB16FAE
寤犲晢锛� Freescale Semiconductor
鏂囦欢闋佹暩(sh霉)锛� 313/332闋�
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC MCU 16K FLASH 6MHZ USB 32LQFP
妯欐簴鍖呰锛� 250
绯诲垪锛� HC08
鏍稿績铏曠悊鍣細 HC08
鑺珨灏哄锛� 8-浣�
閫熷害锛� 6MHz
閫i€氭€э細 SCI锛孶SB
澶栧湇瑷�(sh猫)鍌欙細 LED锛孡VD锛孭OR锛孭WM
杓稿叆/杓稿嚭鏁�(sh霉)锛� 21
绋嬪簭瀛樺劜鍣ㄥ閲忥細 16KB锛�16K x 8锛�
绋嬪簭瀛樺劜鍣ㄩ鍨嬶細 闁冨瓨
RAM 瀹归噺锛� 384 x 8
闆诲 - 闆绘簮 (Vcc/Vdd)锛� 4 V ~ 5.5 V
鎸暕鍣ㄥ瀷锛� 鍏�(n猫i)閮�
宸ヤ綔婧害锛� 0°C ~ 70°C
灏佽/澶栨锛� 32-LQFP
鍖呰锛� 鎵樼洡
鐢�(ch菐n)鍝佺洰閷勯爜闈細 725 (CN2011-ZH PDF)
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Central Processor Unit (CPU)
MC68HC908JB16 鈥� Rev. 1.1
Technical Data
Freescale Semiconductor
Central Processor Unit (CPU)
81
I 鈥� Interrupt Mask
When the interrupt mask is set, all maskable CPU interrupts are
disabled. CPU interrupts are enabled when the interrupt mask is
cleared. When a CPU interrupt occurs, the interrupt mask is set
automatically after the CPU registers are saved on the stack, but
before the interrupt vector is fetched.
1 = Interrupts disabled
0 = Interrupts enabled
NOTE:
To maintain M6805 Family compatibility, the upper byte of the index
register (H) is not stacked automatically. If the interrupt service routine
modifies H, then the user must stack and unstack H using the PSHH and
PULH instructions.
After the I bit is cleared, the highest-priority interrupt request is
serviced first.
A return-from-interrupt (RTI) instruction pulls the CPU registers from
the stack and restores the interrupt mask from the stack. After any
reset, the interrupt mask is set and can be cleared only by the clear
interrupt mask software instruction (CLI).
N 鈥� Negative Flag
The CPU sets the negative flag when an arithmetic operation, logic
operation, or data manipulation produces a negative result, setting
bit 7 of the result.
1 = Negative result
0 = Non-negative result
Z 鈥� Zero Flag
The CPU sets the zero flag when an arithmetic operation, logic
operation, or data manipulation produces a result of $00.
1 = Zero result
0 = Non-zero result
鐩搁棞(gu膩n)PDF璩囨枡
PDF鎻忚堪
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