8-2
MCF5272 User’s Manual
Chip Select Registers
NOTE:
A detailed description of each bus access type supported by the
MCF5272 device is given in Chapter 20, “Bus Operation.”
8.1.3 Boot CS0 Operation
CS0 is enabled after reset and is used to access boot ROM. The memory port width of CS0
is defined by the state of QSPI_CLK/BUSW1 and QSPI_CS0/BUSW0. These two bits
should be configured to define the width of the boot ROM connected to CS0, as described
in Section 19.17, “Operating Mode Configuration Pins.”
8.2 Chip Select Registers
Each chip select is controlled through two 32-bit registers. The chip select base registers
(CSBR0–CSBR7) are used to enable the chip select and to configure the base address, port
size, bus interface type, and address space. The chip select option registers
(CSOR0–CSOR7) are used to configure the address mask, additional setup/hold, extended
burst capability, wait states, and read/write access.
Table 8-1. CSCR and CSOR Values after Reset
Offset
Name
Chip Select Register
Reset
+ 0x040
CSBR0
CS base register 0
0x0000_0x01
1
1
The nibble shown as x resets as 00xx, where the undefined bits represent
the BW field. QSPI_CS0/BUSW0 and QSPI_CLK/BUSW1 program the
bus width for CS0 at reset
+ 0x044
CSOR0
CS option register 0
0xFFFF_F078
+ 0x048
CSBR1
CS base register 1
0x0000_1300
+ 0x04C
CSOR1
CS option register 1
0xFFFF_F078
+ 0x050
CSBR2
CS base register 2
0x0000_2300
+ 0x054
CSOR2
CS option register 2
0xFFFF_F078
+ 0x058
CSBR3
CS base register 3
0x0000_3300
+ 0x05C
CSOR3
CS option register 3
0xFFFF_F078
+ 0x060
CSBR4
CS base register 4
0x0000_4300
+ 0x064
CSOR4
CS option register 4
0xFFFF_F078
+ 0x068
CSBR5
CS base register 5
0x0000_5300
+ 0x06C
CSOR5
CS option register 5
0xFFFF_F078
+ 0x070
CSBR6
CS base register 6
0x0000_6300
+ 0x074
CSOR6
CS option register 6
0xFFFF_F078
+ 0x078
CSBR7
CS base register 7
0x0000_7700
+ 0x07C
CSOR7
CS option register 7
0xFFFF_F078
Summary of Contents for DigitalDNA ColdFire MCF5272
Page 1: ...MCF5272UM D Rev 0 02 2001 MCF5272 ColdFire Integrated Microprocessor User s Manual ...
Page 38: ...xxxviii MCF5272 User s Manual TABLES Table Number Title Page Number ...
Page 58: ...1 10 MCF5272 User s Manual MCF5272 Specific Features ...
Page 90: ...2 42 MCF5272 User s Manual Exception Processing Overview ...
Page 96: ...3 6 MCF5272 User s Manual MAC Instruction Execution Timings ...
Page 158: ...5 46 MCF5272 User s Manual Motorola Recommended BDM Pinout ...
Page 184: ...7 12 MCF5272 User s Manual Interrupt Controller Registers ...
Page 338: ...13 44 MCF5272 User s Manual Application Examples ...
Page 414: ...18 6 MCF5272 User s Manual PWM Programming Model ...
Page 452: ...19 38 MCF5272 User s Manual Power Supply Pins ...
Page 482: ...20 30 MCF5272 User s Manual Reset Operation ...
Page 492: ...21 10 MCF5272 User s Manual Non IEEE 1149 1 Operation ...