Circuit Board Reference Manual

MCF548x Reference Manual, Rev. 3
15-20 Freescale Semiconductor
15.3.2.4.3 4-Bit PCLRR_x Registers
The 4-bit PCLRR_x registers are the clear output data registers for PDMAn (PCLRR_DMA) and
PFECI2Cn (PCLRR_FECI2C). Figure 15-20 displays the 4-bit PCLRR_x registers.
15.3.2.4.4 5-Bit PCLRR_FBCS Registers
The 5-bit PCLRR_FBCS register is the clear output data register for PFBCSn. Figure 15-21 displays the
5-bit PCLRR_FBCS register.
76543210
R00000000
W PCLRRx4 PCLRRx3PCLRRx2 PCLRRx1 PCLRRx0
Reset00000000
Reg
Addr
MBAR + 0xA39 (PCLRR_PCIBG) and 0xA3A (PCLRR_PCIBR)
Figure 15-19. 5-Bit PCIBG and PCIBR Clear Output Data Register
Table 15-21. 5-Bit PCLRR_PCIBG and PCLRR_PCIBR Field Descriptions
Bits Name Description
7–5 — Reserved, should be cleared
4–0 PCLRRxn PCLRR_PCIBG and PCLRR_PCIBR clear output data registers
0 Corresponding PODR_PCIGNT or PODR_PCIBR bit is cleared
1 No effect
76543210
R00000000
W PCLRRx3 PCLRRx2 PCLRRx1 PCLRRx0
Reset00000000
Reg
Addr
MBAR + 0xA32 (PCLRR_DMA) and 0xA38 (PCLRR_FECI2C)
Figure 15-20. 4-Bit DMA and FECI2C Clear Output Data Registers
Table 15-22. 4-Bit PCLRR_DMA and PCLRR_FECI2C Field Descriptions
Bits Name Description
7–4 — Reserved, should be cleared
3–0 PCLRRxn PCLRR_DMA and PCLRR_FECI2C clear output data registers
0 Corresponding PODR_DMA or PODR_FECI2C bit is cleared
1 No effect