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參數(shù)資料
| 型號： | M38837G6HP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80 |
| 文件頁數(shù)： | 51/81頁 |
| 文件大?。?/td> | 766K |
| 代理商： | M38837G6HP |
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Rev.1.00
Oct 26, 2004
page 55 of 79
3883 Group
Fig. 52 Configuration of serialized IRQ control register
Register Explanation
The serialized IRQ function is configured and controlled by the se-
rialized IRQ request register (SERIRQ) and the serialized IRQ
control register (SERCON).
[Serialized IRQ control register (SERCON)] 001D16
Bit 0 : Serialized IRQ enable bit (SIRQEN )
This bit enables/disables the serialized IRQ interface. When this
bit is “1”, use of serialized IRQ is enabled. Then P87 functions as
IRQ/Data line (SERIRQ) and P47 functions as CLKRUN.
Output structure of CLKRUN pin becomes N-channel open-drain.
Bit 1 : LPC clock restart enable bit (RUNEN )
Setting this bit to “1” enables clock restart with “L” output of
CLKRUN.
Bit 2 : LPC clock stop inhibition bit (SUPEN )
Setting this bit to “1” makes CLKRUN output change to “L” for in-
hibiting the clock stop.
Bit 3 : Hardware IRQ1 request bit (SEIR1)
When this bit is “1”, OBF0 status is directly connected to the IRQ1
frame.
Bit 4 : Hardware IRQ12 request bit (SEIR12 )
When this bit is “1”, OBF0 status is directly connected to IRQ12
frame.
Bit 5 : Hardware IRQx request bit (SEIRx )
When this bit is “1”, OBF1 status is directly connected to the IRQx
frame.
Bit 6 : IRQ1/IRQ12 disable bit (SCH0EN )
This bit controls whether the serialized IRQ channel 0 transfers
the IRQ1 and IRQ12 frame to the host or not.
Bit 7 : IRQx output polarity bit (SCH1POL)
This bit selects IRx frame output level.
Serialized IRQ control register
Bit name
Function
Bit symbol
W
R
Symbol
Address
SERCON
001D16
SIRQEN
Serialized IRQ enable bit
0 : Serialized IRQ disable
1 : Serialized IRQ enable
0 : Clock restart disable
1 : Clock restart enable
0 : Stop inhibition control disable
1 : Stop inhibition control enable
0 : No IRQ1 request
1 : OBF0 synchronized IRQ1 request
LPC clock restart enable bit
LPC clock stop inhibition bit
Hardware IRQ1 request bit
RUNEN
SUPEN
SEIR1
b7
b6
b5
b4
b3
b2
b1
b0
Hardware IRQ12 request bit
0 : No IRQ12 request
1 : OBF0 synchronized IRQ12 request
SEIRx
Hardware IRQx request bit
0 : No IRQx request
1 : OBF1 synchronized IRQx request
SEIR12
SCH0EN
IRQ1/IRQ12 disable bit
0 : IRQ1/IRQ12 output enable
1 : IRQ1/IRQ12 output disable
IRQx output polarity bit
0 : -Request Hiz-Hiz-Hiz
-No request L-H-Hiz
1 : -Request L-H-Hiz
-No request Hiz-Hiz-Hiz
SCH1POL
When reset
000000002
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