mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 1068
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mpc823rg
Manufacturer Part Number
mpc823rg
Description
Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MPC823RG.pdf
(1348 pages)
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Byte Working Mode Example
Half-Word Working Mode Example 1
Data size: Byte.
Programming options:
Data size: Half-word.
Programming option:
Address: 0x00000003.
Data value: Greater than 0x07 and less than 0x0c.
One L-address comparator = 0x00000003 and program for equal.
One L-data comparator = 0x00000007 and program for greater than.
One L-data comparator = 0x0000000c and program for less than.
CGBMSK and CHBMSK fields of the LCTRL1 = 0xe.
Both L-data comparators program to byte mode.
Result:
The event will be correctly detected, regardless of the load/store instruction the
compiler chooses for this access.
Address: Greater than 0x00000000 and less than 0x0000000c.
Data value: Greater than 0x4e204e20 and less than 0x9c409c40.
One L-address comparator = 0x00000000 and program for greater than.
One L-address comparator = 0x0000000c and program for less than.
One L-data comparator = 0x4e204e20 and program for greater than.
One L-data comparator = 0x9c409c40 and program for less than.
CGBMSK and CHBMSK fields of the LCTRL1 = 0xe.
Both L-data comparators program to half-word mode.
Result:
The event will be correctly detected as long as the compiler does not use a
load/store instruction with a data size of byte.
Freescale Semiconductor, Inc.
For More Information On This Product,
MPC823 REFERENCE MANUAL
Go to: www.freescale.com
Development Capabilities and Interface
20-13
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