Memory Map/Register Definition
MCF548x Reference Manual, Rev. 3
Freescale Semiconductor 19-5
MBAR + 0xB68 PCITBATR1 32 Target Base Address Translation Register
1
R/W
MBAR + 0xB6C PCITCR 32 Target Control Register R/W
MBAR + 0xB70 PCIIW0BTAR 32 Initiator Window 0 Base/Translation
Address Register
R/W
MBAR + 0xB74 PCIIW1BTAR 32 Initiator Window 1 Base/Translation
Address Register
R/W
MBAR + 0xB78 PCIIW2BTAR 32 Initiator Window 2 Base/Translation
Address Register
R/W
MBAR + 0xB7C — — Reserved —
MBAR + 0xB80 PCIIWCR 32 Initiator Window Configuration Register R/W
MBAR + 0xB84 PCIICR 32 Initiator Control Register R/W
MBAR + 0xB88 PCIISR 32 Initiator Status Register R/W
MBAR + 0xB8C–0xBF4 — — Reserved —
MBAR + 0xBF8 PCICAR 32 Configuration Address Register R/W
MBAR + 0xBFC — — Reserved —
CommBus FIFO Transmit Interface Registers1
MBAR + 0x8400 PCITPSR 32 Tx Packet Size Register R/W
MBAR + 0x8404 PCITSAR 32 Tx Start Address Register R/W
MBAR + 0x8408 PCITTCR 32 Tx Transaction Control Register R/W
MBAR + 0x840C PCITER 32 Tx Enables Register R/W
MBAR + 0x8410 PCITNAR 32 Tx Next Address Register R
MBAR + 0x8414 PCITLWR 32 Tx Last Word Register R
MBAR + 0x8418 PCITDCR 32 Tx Done Counts Register R
MBAR + 0x841C PCITSR 32 Tx Status Register R/WC
MBAR + 0x8420–0x843C — — Reserved —
MBAR + 0x8440 PCITFDR 32 Tx FIFO Data Register R/W
MBAR + 0x8444 PCITFSR 32 Tx FIFO Status Register R/WC
MBAR + 0x8448 PCITFCR 32 Tx FIFO Control Register R/W
MBAR + 0x844C PCITFAR 32 Tx FIFO Alarm Register R/W
MBAR + 0x8450 PCITFRPR 32 Tx FIFO Read Pointer Register R/W
MBAR + 0x8454 PCITFWPR 32 Tx FIFO Write Pointer Register R/W
MBAR + 0x8458–0x847C — — Reserved —

Table 19-2. PCI Memory Map (Continued)

Address Name Size Description Access