MPC564EVB Freescale Semiconductor, MPC564EVB Datasheet - Page 431

• Manufacturer Part Number: MPC564EVB
• Description: KIT EVAL FOR MPC561/562/563/564
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC564EVB

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC56x
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet
• For Use With/related Products: MPC561, 562, 563, 564
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Freescale Semiconductor
17:19
20:21
Bits
0:16
22
23
24
25
26
27
28
29
WEBS
TBDIP
LBDIP
Name
SETA
SST
WP
BA
PS
BL
AT
—
Base address. These bits are compared to the corresponding unmasked address signals among
ADDR[0:16] to determine if a memory bank controlled by the memory controller is being
accessed by an internal bus master. (The address types are also compared.) These bits are used
in conjunction with the AM[0:16] bits in the OR.
Address type. This field can be used to require accesses of the memory bank to be limited to a
certain address space type. These bits are used in conjunction with the ATM bits in the OR. Note
that the address type field uses only AT[0:2] and does not need AT3 to define the memory type
space. For a full definition of address types, refer to
Port size
00 32-bit port
01 8-bit port
10 16-bit port
11 Reserved
Short Setup Time – This field specifies the setup time required for this memory region.
0 Normal setup time (like the MPC555)
1 Short Setup Time selected
Note that an external burst access with short setup timing will corrupt any USIU register
load/store if SCCR[EBDF] is not 0b00. Refer to
Write protect. An attempt to write to the range of addresses specified in a base address register
that has this bit set can cause the TEA signal to be asserted by the bus-monitor logic (if enabled),
causing termination of this cycle.
0 Both read and write accesses are allowed
1 Only read accesses are allowed. The CSx signal and TA are not asserted by the memory
Reserved
Burst Length – This field specifies the maximum number of words that may comprise a burst
access for this memory region. This field has an effect only in the case when the burst accesses
are initiated by the USIU (SIUMCR[BURST_EN] =1).
0 Burst access of up to 4 words
1 Burst access of up to 8 words
Write-enable/byte-select. This bit controls the functionality of the WE/BE pads.
0 The WE/BE pads operate as WE
1 The WE/BE pads operate as BE
Toggle-burst data in progress. TBDIP determines how long the BDIP strobe will be asserted for
each data beat in the burst cycles.
Late-burst-data-in-progress (LBDIP). This bit determines the timing of the first assertion of the
BDIP signal in burst cycles.
NOTE: Do not set both LBDIP and TBDIP bits in a region’s base registers; behavior in such cases
is unpredictable.
0 Normal timing for BDIP assertion (asserts one clock after negation of TS)
1 Late timing for BDIP assertion (asserts after the programmed number of wait states)
External transfer acknowledge
0 TA generated internally by memory controller
1 TA generated by external logic. Note that programming the timing of CS/WE/OE strobes may
controller on write cycles to this memory bank. WPER is set in the MSTAT register if a write to
this memory bank is attempted
have no meaning when this bit is set
MPC561/MPC563 Reference Manual, Rev. 1.2
Table 10-8. BR0–BR3 Bit Descriptions
Description
Table
Section 9.5.8.6, “Address
8-9.
Types.”
Memory Controller
10-33