MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 196

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

4.6 Burst Buffer Programming Model
MPC555
USER’S MANUAL
The BBC and IMPU module configuration registers are MPC555 / MPC556 special-
purpose registers (SPRs). They are programmed with the MPC555 / MPC556 mtspr/
mfspr instructions.
All the registers can be accessed in supervisor mode only. The processor generates
an exception internally if an attempt is made to access the registers from user mode.
The following 32-bit registers contain the starting address and the size of the region.
There is one register for each region.
The following registers hold the attributes of the corresponding regions and of the de-
fault region. Each of the four MI_RAx registers contains access permission attributes.
The MI_GRA (global region attribute) register contains two additional bits to enable
each of the MI_RBAx registers.
The BBC holds only one register, the BBC module configuration register (BBCMCR).
/
MPC556
Table 4-2 Region Base Address Registers RBA[0:1]
Table 4-4 BBC Module Configuration Register
Register name
Register Name
Register Name
Table 4-3 Region Attributes Registers
BBCMCR
MI_RBA[0]
MI_RBA[1]
MI_RBA[2]
MI_RBA[3]
MI_RA[0]
MI_RA[1]
MI_RA[2]
MI_RA[3]
MI_GRA
Rev. 15 October 2000
(Decimal)
BURST BUFFER
(Decimal)
(Decimal)
Addr
Address
Address
560
784
785
786
787
816
817
818
818
528
ub_addr [0:31]
ub_addr [18:27]
ub_addr[18:27]
0x2110
0x2180
0x2380
0x2580
0x2780
0x2190
0x2390
0x2590
0x2790
0x2100
(Hex)
(Hex)
(hex)
MOTOROLA
4-20