參數(shù)資料
型號: SC28L92A1B,557
廠商: NXP Semiconductors
文件頁數(shù): 53/73頁
文件大?。?/td> 0K
描述: IC UART DUAL W/FIFO 44-PQFP
產(chǎn)品培訓(xùn)模塊: Stand-Alone UARTs
標(biāo)準(zhǔn)包裝: 480
系列: IMPACT
特點: 故障啟動位檢測
通道數(shù): 2,DUART
FIFO's: 16 字節(jié)
電源電壓: 3.3V,5V
帶自動流量控制功能:
帶故障啟動位檢測功能:
帶調(diào)制解調(diào)器控制功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 44-QFP
供應(yīng)商設(shè)備封裝: 44-PQFP(10x10)
包裝: 托盤
產(chǎn)品目錄頁面: 828 (CN2011-ZH PDF)
其它名稱: 568-1211
935263294557
SC28L92A1B
57
2552K–AVR–04/11
ATmega329/3290/649/6490
Bit 4 – PCIF0: Pin Change Interrupt Flag 0
When a logic change on any PCINT7..0 pin triggers an interrupt request, PCIF0 becomes set
(one). If the I-bit in SREG and the PCIE0 bit in EIMSK are set (one), the MCU will jump to the
corresponding Interrupt Vector. The flag is cleared when the interrupt routine is executed. Alter-
natively, the flag can be cleared by writing a logical one to it.
Bit 0 – INTF0: External Interrupt Flag 0
When an edge or logic change on the INT0 pin triggers an interrupt request, INTF0 becomes set
(one). If the I-bit in SREG and the INT0 bit in EIMSK are set (one), the MCU will jump to the cor-
responding Interrupt Vector. The flag is cleared when the interrupt routine is executed.
Alternatively, the flag can be cleared by writing a logical one to it. This flag is always cleared
when INT0 is configured as a level interrupt.
12.2.4
PCMSK3 – Pin Change Mask Register 3(1)
Bit 6:0 – PCINT30..24: Pin Change Enable Mask 30..24
Each PCINT30..24-bit selects whether pin change interrupt is enabled on the corresponding I/O
pin. If PCINT30..24 is set and the PCIE3 bit in EIMSK is set, pin change interrupt is enabled on
the corresponding I/O pin. If PCINT30..24 is cleared, pin change interrupt on the corresponding
I/O pin is disabled.
12.2.5
PCMSK2 – Pin Change Mask Register 2
Bit 7:0 – PCINT23:16: Pin Change Enable Mask 23:16
Each PCINT23:16 bit selects whether pin change interrupt is enabled on the corresponding I/O
pin. If PCINT23:16 is set and the PCIE2 bit in EIMSK is set, pin change interrupt is enabled on
the corresponding I/O pin. If PCINT23:16 is cleared, pin change interrupt on the corresponding
I/O pin is disabled.
Note:
1. PCMSK3 and PCMSK2 are only present in ATmega3290/6490.
Bit
7
654
321
0
PCINT30
PCINT29
PCINT28
PCINT27
PCINT26
PCINT25
PCINT24
PCMSK3
Read/Write
R
R/W
Initial Value
0
Bit
76543
210
PCINT23
PCINT22
PCINT21
PCINT20
PCINT19
PCINT18
PCINT17
PCINT16
PCMSK2
Read/Write
R/W
Initial
Value
00000
000
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