mcf5272 Freescale Semiconductor, Inc, mcf5272 Datasheet - Page 190

• Manufacturer Part Number: mcf5272
• Description: Mcf5272 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

Chip Select Registers
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 19.18, “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.
8-2
A detailed description of each bus access type supported by the
MCF5272 device is given in Chapter 20, “w Bus Operation.”
1
+ 0x04C CSOR1 CS option register 1
+ 0x05C CSOR3 CS option register 3
+ 0x06C CSOR5 CS option register 5
+ 0x07C CSOR7 CS option register 7
+ 0x040
+ 0x044 CSOR0 CS option register 0
+ 0x048
+ 0x050
+ 0x054 CSOR2 CS option register 2
+ 0x058
+ 0x060
+ 0x064 CSOR4 CS option register 4
+ 0x068
+ 0x070
+ 0x074 CSOR6 CS option register 6
+ 0x078
Offset
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
Table 8-1. CSCR and CSOR Values after Reset
CSBR0 CS base register 0
CSBR1 CS base register 1
CSBR2 CS base register 2
CSBR3 CS base register 3
CSBR4 CS base register 4
CSBR5 CS base register 5
CSBR6 CS base register 6
CSBR7 CS base register 7
Name
MCF5272 User’s Manual
Chip Select Register
NOTE:
0x0000_0x01
0xFFFF_F078
0xFFFF_F078
0xFFFF_F078
0xFFFF_F078
0xFFFF_F078
0xFFFF_F078
0xFFFF_F078
0xFFFF_F078
0x0000_1300
0x0000_2300
0x0000_3300
0x0000_4300
0x0000_5300
0x0000_6300
0x0000_7700
Reset
1
MOTOROLA