Fujitsu FR81S User Manual
CHAPTER 49: BUS DIAGNOSIS FUNCTION
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : BUS DIAGNOSIS FUNCTION
FUJITSU SEMICONDUCTOR CONFIDENTIAL
13
[bit10] RBEN: Rbus parity error generation enable
This bit enables the generation of a Rbus (PCLK2) parity error.
If this bit is "0", the Rbus parity is generated as correct one (odd parity).
If this bit is "1", the Rbus parity is generated as even parity so that an error occurs.
Note:
For DEN[3:0]= 0000, AEN[3:0]= 0000, CEN= 0, this bit is invalid. Under such condition, it will be the
same behavior as when "0" is set to this bit.
[bit9] APBEN: APB parity error generation enable
This bit enables the generation of an APB (PCLK2) parity error.
If this bit is "0", the APB parity is generated as correct one (odd parity).
If this bit is "1", the APB parity is generated as even parity so that an error occurs.
Note:
For DEN[3:0]= 0000, AEN[3:0]= 0000, CEN= 0, this bit is invalid. Under such condition, it will be the
same behavior as when "0" is set to this bit.
[bit8] AHBEN: AHB parity error generation enable
This bit enables the generation of an AHB parity error.
If this bit is "0", the AHB parity is generated as correct one (odd parity).
If this bit is "1", the AHB parity is generated as even parity so that an error occurs.
Note:
For DEN[3:0]= 0000, AEN[3:0]= 0000, CEN= 0, this bit is invalid. Under such condition, it will be the
same behavior as when "0" is set to this bit.
[bit7 to bit4] DEN3 to DEN0: Data error
Data error setting bits.
If DER[3] is "0", parity in bit7 to bit0 of the data bus is properly generated.
If DEN[3] is "1", a parity error for bit7 to bit0 of the data bus is generated.
If DEN[2] is "0", parity in bit15 to bit8 of the data bus is properly generated.
If DEN[2] is "1", a parity error for bit15 to bit8 of the data bus is generated.
If DEN[1] is "0", parity in bit23 to bit16 of the data bus is properly generated.
If DEN[1] is "1", a parity error for bit23 to bit16 of the data bus is generated.
If DEN[0] is "0", parity in bit31 to bit24 of the data bus is properly generated.
If DEN[0] is "1", a parity error for bit31 to bit24 of the data bus is generated.
Notes:
⋅
For RBEN= 0, APBEN= 0, AHBEN= 0, these bits are invalid. Under such condition, it will be the same
behavior as when "0000" is set to these bits.
⋅
Only value set in valid data range of access size is set as an error.
MB91520 Series
MN705-00010-1v0-E
2106