mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 382

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

Memory Controller
15.3.1.7 MEMORY DATA REGISTER. The memory data register (MDR) contains the data
to be written to or read from the RAM array for UPM command operations. This register must
be set up before you issue a write command to the memory command register.
MD—Memory Data
This field contains the RAM array word.
15.3.1.8 MEMORY ADDRESS REGISTER. The memory address register (MAR) contains
an address to be output on the address lines that are controlled by the AMX field in the RAM
word of the RAM array.
MA—Memory Address
This field contains a 32-bit address to be output on the address bus if the AMX field is equal
to 11. Refer to Section 15.5.4 The RAM Array for more information.
MDR
MAR
RESET
RESET
RESET
RESET
FIELD
ADDR
FIELD
ADDR
FIELD
ADDR
FIELD
ADDR
R/W
R/W
R/W
R/W
BIT
BIT
BIT
BIT
16
16
0
0
17
17
1
1
18
18
2
2
Freescale Semiconductor, Inc.
For More Information On This Product,
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MPC823 REFERENCE MANUAL
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Go to: www.freescale.com
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5
(IMMR & 0xFFFF0000) + 0x17C
(IMMR & 0xFFFF0000) + 0x17E
(IMMR & 0xFFFF0000) + 0x164
(IMMR & 0xFFFF0000) + 0x166
22
22
6
6
23
23
7
7
R/W
R/W
R/W
R/W
MD
MD
MA
MA
0
0
0
0
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8
8
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9
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MOTOROLA
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