STLC1502 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'STLC1502' PDF : 81 Pages View PDF
Address
Int Base + 0x28
Register Name
IRQSourceSel
Int.Base + 0x2C FIQTestSource
Int Base + 0x30 FIQSourceSel
STLC1502
R/W Notes
R/W Select the test mode of the IRQ
cause on the interrupt control-
ler (if the bit 0 is set). In this
case the IRQTestSource
becomes the interrupt source
cause.
R/W Usable when the bit 0 of the
FIQSourceSel is set to one. In
this case this register is the
interrupt source cause. If set,
the cause is active (interrupt
generated) while if reset, the
cause is not active.
R/W Select the test mode of the FIQ
cause on the interrupt control-
ler (if the bit 0 is set). In this
case the FIQTestSource
becomes the interrupt source
cause. Moreover this register
contains also the selection for
the FIQ interrupt cause.
7.5 SPI-Serial Peripheral Interface
The Serial Peripheral Interface (SPI) allows full-duplex, synchronous, serial communication with external
devices. An SPI system may consist of a master and one or more slaves or a system in which devices
may be either masters or slaves.
The SPI is normally used for communication between the microcontroller and external peripherals.
7.5.1 Main Features
• Full duplex, three-wire synchronous transfers
• Master mode operation (clock generation)
• Four master mode frequencies
• Four programmable master bit rates
• Programmable clock polarity and phase
• End of transfer interrupt flag
• Write collision flag protection
• Master mode fault protection capability.
The SPI is connected to external devices through 3 pins:
SMI: Master In
SMO: Master Out
SCK: Serial Clock pin
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