AT83EC5123 ATMEL Corporation, AT83EC5123 Datasheet - Page 105

• Manufacturer Part Number: AT83EC5123
• Description: (AT8xx512x) Smart Card Reader ICs
• Manufacturer: ATMEL Corporation

Registers
Serial Peripheral Control
Register (SPCON)
4202B–SCR–07/03
Figure 70 gives a logical view of the above statements.
Figure 70. SPI Interrupt Requests Generation
There are three registers in the module that provide control, status and data storage
functions. These registers are describes in the following paragraphs.
The Serial Peripheral Control Register does the following:
•
•
•
•
•
Selects one of the Master clock rates
Configures the SPI module as Master or Slave
Selects serial clock polarity and phase
Enables the SPI module
Frees the SS pin for a general-purpose
SPIF
MODF
SSDIS
CPU Interrupt Request
SPI Transmitter
SPI Receiver/error
CPU Interrupt Request
CPU Interrupt Request
AT8xC5122/23
SPI
7