ST10F280_12 datasheet(203/239 Pages) STMICROELECTRONICS

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ST10F280

Special function register overview

Doc ID 8673 Rev. 3

203/239

XPERCON

Address:

0xF024h / 12h ESFR

Reset:

0x--05h

Type:

R/W

Note:

When both CAN and XPWM are disabled via XPERCON setting, then any access in the

address range 00’EC00h 00’EFFFh will be directed to external memory interface, using the

BUSCONx register corresponding to address matching ADDRSELx register. P4.4 and P4.7

---

R/W

CAN1EN CAN1 Enable Bit

0: Accesses to the on-chip CAN1 XPeripheral and its functions are disabled. P4.5

and P4.6 pins can be used as general purpose I/Os. Address range 00’EF00h-

00’EFFFh is only directed to external memory if CAN2EN and XPWM bits are

cleared also.

1: The on-chip CAN1 XPeripheral is enabled and can be accessed.

CAN2EN CAN2 Enable Bit

0: Accesses to the on-chip CAN2 XPeripheral and its functions are disabled. P4.4

and P4.7 pins can be used as general purpose I/Os. Address range 00’EE00h-

00’EEFFh is only directed to external memory if CAN1EN and XPWM bits are

cleared also.

T1: he on-chip CAN2 XPeripheral is enabled and can be accessed.

XRAMEN XRAM Enable Bit

0: Accesses to the on-chip 16K Byte XRAM are disabled, external access

performed.

1: The on-chip 16K Byte XRAM is enabled and can be accessed.

XPERCONEN3 XPORT9,XTIMER, XPORT10, XADCMUX Enable Bit

0: Accesses to the XPORT9, XTIMER, XPORT10, XADCMUX peripherals are

disabled, external access performed.

1: The on-chip XPORT9, XTIMER, XPORT10, XADCMUX peripherals are enabled

and can be accessed.

XPWMEN XPWM Enable Bit

0: Accesses to the on-chip XPWM are disabled, external access performed.

Address range 00’EC00h-00’ECFFh is only directed to external memory if CAN1EN

and CAN2EN are ‘0’ also

1: The on-chip XPWM is enabled and can be accessed.

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