MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 125
MMC2114
Manufacturer Part Number
MMC2114
Description
M CORE Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MMC2114.pdf
(654 pages)
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4.7 Memory Map and Registers
4.7.1 Programming Model
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
This subsection provides a description of the memory map and registers.
The CCM programming model consists of these registers:
Some control register bits are implemented as write-once bits. These
bits are always readable, but once the bit has been written, additional
writes have no effect, except during debug and test operations.
Some write-once bits and test bits can be read and written while in debug
mode or test mode. When debug or test mode is exited, the chip
configuration module resumes operation based on the current register
values. If a write to a write-once register bit occurs while in debug or test
mode, the register bit remains writable on exit from debug or test mode.
Table 4-2
All configurations
Debug operation (all modes)
Test operation (all modes)
Master mode
Single-chip mode
FAST mode
Emulation mode
•
•
•
•
Freescale Semiconductor, Inc.
For More Information On This Product,
The Chip Configuration Register (CCR) controls the main chip
configuration. See
The Reset Configuration Register (RCON) indicates the default
chip configuration. See
The Chip Identification Register (CIR) contains a unique part
number. See
The Chip Test Register (CTR) contains chip-specific test
functions. See
Table 4-2. Write-Once Bits Read/Write Accessibility
Chip Configuration Module (CCM)
shows the accessibility of write-once bits.
Go to: www.freescale.com
Configuration
4.7.3.3 Chip Identification
4.7.3.4 Chip Test
4.7.3.1 Chip Configuration
4.7.3.2 Reset Configuration
Register.
Read-always
Write-always
Write-always
Write-once
Write-once
Write-once
Write-once
Chip Configuration Module (CCM)
Register.
Read/Write Access
Memory Map and Registers
Register.
Advance Information
Register.
125
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