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參數資料
型號: MC56F8023VLC
廠商: Freescale Semiconductor
文件頁數: 131/157頁
文件大?。?/td> 0K
描述: IC DSP 16BIT DUAL HARV 32-LQFP
標準包裝: 1,250
系列: 56F8xxx
核心處理器: 56800E
芯體尺寸: 16-位
速度: 32MHz
連通性: I²C,LIN,SCI,SPI
外圍設備: POR,PWM,WDT
輸入/輸出數: 26
程序存儲器容量: 32KB(16K x 16)
程序存儲器類型: 閃存
RAM 容量: 2K x 16
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數據轉換器: A/D 6x12b; D/A 2x12b
振蕩器型: 內部
工作溫度: -40°C ~ 105°C
封裝/外殼: 32-LQFP
包裝: 托盤
Register Descriptions
56F8033/56F8023 Data Sheet, Rev. 6
Freescale Semiconductor
75
5.6.19.1
Interrupt (INT)—Bit 15
This read-only bit reflects the state of the interrupt to the 56800E core.
0 = No interrupt is being sent to the 56800E core
1 = An interrupt is being sent to the 56800E core
5.6.19.2
Interrupt Priority Level (IPIC)—Bits 14–13
These read-only bits reflect the state of the new interrupt priority level bits being presented to the 56800E
core. These bits indicate the priority level needed for a new IRQ to interrupt the current interrupt being
sent to the 56800E core. This field is only updated when the 56800E core jumps to a new interrupt service
routine.
Note:
Nested interrupts may cause this field to be updated before the original interrupt service routine can
read it.
00 = Required nested exception priority levels are 0, 1, 2, or 3
01 = Required nested exception priority levels are 1, 2, or 3
10 = Required nested exception priority levels are 2 or 3
11 = Required nested exception priority level is 3
5.6.19.3
Vector Number - Vector Address Bus (VAB)—Bits 12–6
This read-only field shows bits [7:1] of the Vector Address Bus used at the time the last IRQ was taken.
In the case of a Fast Interrupt, it shows the lower address bits of the jump address. This field is only updated
when the 56800E core jumps to a new interrupt service routine.
Note:
Nested interrupts may cause this field to be updated before the original interrupt service routine can
read it.
5.6.19.4
Interrupt Disable (INT_DIS)—Bit 5
This bit allows all interrupts to be disabled.
0 = Normal operation (default)
1 = All interrupts disabled
Table 5-4 Interrupt Priority Encoding
IPIC_VALUE[1:0]
Current Interrupt
Priority Level
Required Nested
Exception Priority
00
No interrupt or SWILP
Priorities 0, 1, 2, 3
01
Priority 0
Priorities 1, 2, 3
10
Priority 1
Priorities 2, 3
11
Priority 2 or 3
Priority 3
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