參數(shù)資料
型號: 73S1217F-68MR/F/PE
廠商: Maxim Integrated Products
文件頁數(shù): 70/140頁
文件大小: 0K
描述: IC SOC SMART CARD READER 68QFN
標準包裝: 2,500
系列: *
DS_1217F_002
73S1217F Data Sheet
Rev. 1.2
35
1.7.5 Interrupts
The 80515 core provides 10 interrupt sources with four priority levels. Each source has its own request
flag(s) located in a special function register (TCON, IRCON, and SCON). Each interrupt requested by the
corresponding flag can be individually enabled or disabled by the enable bits in SFRs IEN0, IEN1, and
IEN2. Some of the 10 sources are multiplexed in order to expand the number of interrupt sources.
These will be described in more detail in the respective sections.
External interrupts are the interrupts external to the 80515 core, i.e. signals that originate in other
parts of the 73S1217F, for example the USB interface, USR I/O, RTC, smart card interface, analog
comparators, etc. The external interrupt configuration is shown in Figure 9.
.
USR
Int
Ctl
USR
Int
Ctl
USR
Int
Ctl
SCInt
WaitTim eout
Card Event
RxData
TX_Event
Tx_Sent
TX_Error
RX_Error
Card_Det
VCC_OK
CRDCtl
VccCTL
+
SCIE
VCC_TMR
RTC
USB
Analog
Comp
KeyPad
I2C
USR
Int
Ctl
t0
t1
int0
int1
USR
Pads
USR0
USR7
USR6
USR5
USR4
USR3
USR2
USR1
INT2
INT3
INT
Pads
int2
int3
Serial
Ch 0
Serial
Ch 1
SerChan 0 int
SerChan 1 int
int4
INT5
Ctl
INT6
Ctl
int5
int6
+
DuringSTOP,IDLE
when PWRDN bit is s et
MPU
CORE
VDD_Fault
+
Delay
ClearPWRDNbit
PDMUXCtl
1
0
Figure 9: External Interrupt Configuration
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