參數資料
型號: 73S1217F-68MR/F/PE
廠商: Maxim Integrated Products
文件頁數: 66/140頁
文件大?。?/td> 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
31
External Interrupt Control Register (INT5Ctl): 0xFF94
0x00
Table 14: The INT5Ctl Register
MSB
LSB
PDMUX
RTCIEN RTCINT USBIEN
USBINT
KPIEN
KPINT
Bit
Symbol
Function
INT5Ctl.7
PDMUX
When set = 1, enables interrupts from USB, RTC, Keypad (normally going to
int5), Smart Card interrupts (normally going to int4), or USR(7:0) pins (int0) to
cause interrupt on int0. The assertion of the interrupt to int0 is delayed by
512 MPU clocks to allow the analog circuits, including the clock system, to
stabilize. This bit must be set prior to asserting the PWRDN bit in order to
properly configure the interrupts that will wake up the circuit. This bit is reset
= 0 when this register is read.
INT5Ctl.6
INT5Ctl.5
RTCIEN
RTC interrupt enable.
INT5Ctl.4
RTCINT
RTC interrupt flag.
INT5Ctl.3
USBIEN
USB interrupt enable.
INT5Ctl.2
USBINT
USB interrupt flag.
INT5Ctl.1
KPIEN
Keypad interrupt enable.
INT5Ctl.0
KPINT
Keypad interrupt flag.
Miscellaneous Control Register 0 (MISCtl0): 0xFFF1
0x00
Table 15: The MISCtl0 Register
MSB
LSB
PWRDN
SLPBK
SSEL
Bit
Symbol
Function
MISCtl0.7
PWRDN
This bit sets the circuit into a low-power condition. All analog (high speed
oscillator and VCO/PLL) functions are disabled 32 MPU clock cycles after
this bit is set = 1. This allows time for the next instruction to set the STOP bit
in the PCON register to stop the CPU core. The RTC will stay active if it is
set to operate from the 32kHz oscillator. The MPU is not operative in this
mode. When set, this bit overrides the individual control bits that otherwise
control power consumption.
MISCtl0.6
MISCtl0.5
MISCtl0.4
MISCtl0.3
MISCtl0.2
MISCtl0.1
SLPBK
UART loop back testing mode.
MISCtl0.0
SSEL
Serial port pins select.
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