MCF5272VF66 Freescale, MCF5272VF66 Datasheet - Page 189

• Manufacturer Part Number: MCF5272VF66
• Manufacturer: Freescale

Specifications of MCF5272VF66

• Family Name: MCF5xxx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 66MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 3.3V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 196
• Package Type: MA-BGA
• Lead Free Status / RoHS Status: Not Compliant

8.2.2
CSOR0–CSOR7,
capability, wait states, and read/write access.
Table 8-5
Freescale Semiconductor
31–12
Name
11
10
Reset
Field
Addr
R/W
31
describes CSORn fields.
WRAH
Name
ASET
BAM
Chip Select Option Registers (CSOR0–CSOR7)
Figure
BAM
Address mask. Masks equivalent CSOR[BA] bits. The BAM setting chooses which BA bits to compare
with the corresponding address bit to determine a match.
0 Mask address bit
1 Compare address bit
Address setup enable. Controls assertion of chip select with respect to assertion of a valid address that
hits in the chip select address space.
0 Assert chip select on the rising edge of CLK that address is asserted.
1 Delay assertion of chip select for one CLK cycle after address is asserted. During write transfers,
R/W asserts 1 clock cycle after assertion of the chip select.
Controls the address, data, and attribute hold time after the termination, internal or external with TA, of
a write cycle that hits in the chip select address space.
0 Do not hold address, data, and attribute signals an extra cycle after chip select and R/W negate on
1 Hold address, data, and attribute signals an extra cycle after CSx and R/W negate on writes.
MCF5272 ColdFire
both chip select and R/W are delayed by 1 clock cycle.
writes.
Table 8-4. Chip Select Memory Address Decoding Priority
8-2, are used to configure the address mask, additional setup/hold, extended burst
0x044 (CSOR0); 0x04C (CSOR1); 0x054 (CSOR2); 0x05C (CSOR3);
0x064 (CSOR4); 0x06C (CSOR5); 0x074 (CSOR6); 0x07C (CSOR7)
Figure 8-2. Chip Select Option Registers (CSORn)
12
Table 8-5. CSORn Field Descriptions
ASET WRAH RDAH EXTBURST
11
®
Priority
Highest
Lowest
Integrated Microprocessor User’s Manual, Rev. 3
10
0xFFFF_F078
9
R/W
Chip select 1
Chip select 2
Chip select 3
Chip select 4
Chip select 5
Chip select 6
Description
Chip select 0
Chip select 7
Chip Select
8
—
7
6
WS
2
RW
Chip Select Module
1
MRW
0
8-5