MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 585

• Manufacturer Part Number: MMC2114
• Description: M CORE Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

22.14.3 OnCE Interface Signals
22.14.3.1 Internal Debug Request Input (IDR)
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
Figure 22-8
The following paragraphs describe the OnCE interface signals to other
internal blocks associated with the OnCE controller. These signals are
not available externally, and descriptions are provided to improve
understanding of OnCE operation.
The internal debug request input is a hardware signal which is used in
some implementations to force an immediate debug request to the CPU.
If present and enabled, it functions in an identical manner to the control
function provided by the DR control bit in the OCR. This input is
maskable by a control bit in the OCR.
Freescale Semiconductor, Inc.
ISTRACE
ISBKPT
For More Information On This Product,
ISDR
Figure 22-7. OnCE Controller and Serial Interface
JTAG Test Access Port and OnCE
REGISTER
READ
Go to: www.freescale.com
shows the interface signals for the OnCE controller.
CONTROL/
DECODER
STATUS
OnCE
CPU
REGISTER
WRITE
OnCE COMMAND REGISTER
JTAG Test Access Port and OnCE
AND CONTROL
OnCE STATUS
CONTROLLER
REGISTERS
OnCE TAP
Functional Description
Advance Information
TDI
TCLK
TMS
TDO
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