MM912H634CV1AE Freescale Semiconductor, MM912H634CV1AE Datasheet - Page 182

• Manufacturer Part Number: MM912H634CV1AE
• Description: 64KS12 LIN2xLS/HS Isense
• Manufacturer: Freescale Semiconductor
• Series: -r

Specifications of MM912H634CV1AE

• Applications: Automotive
• Core Processor: HCS12
• Program Memory Type: FLASH (64 kB)
• Controller Series: HCS12
• Ram Size: 6K x 8
• Interface: LIN
• Number Of I /o: -
• Voltage - Supply: 5.5 V ~ 27 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

In stop mode the BDM clocks are stopped. When BDM clocks are disabled and stop mode is exited, the BDM clocks will restart
and BDM will have a soft reset (clearing the instruction register, any command in progress and disable the ACK function). The
BDM is now ready to receive a new command.
4.31.1.3
A block diagram of the BDM is shown in
4.31.2
A single-wire interface pin called the background debug interface (BKGD) pin is used to communicate with the BDM system.
During reset, this pin is a mode select input which selects between normal and special modes of operation. After reset, this pin
becomes the dedicated serial interface pin for the background debug mode.
4.31.3
4.31.3.1
Table 259
Freescale Semiconductor
System
Host
shows the BDM memory map when BDM is active.
External Signal Description
Memory Map and Register Definition
Block Diagram
Module Memory Map
Register Block
BKGD
0x3_FF0C–0x3_FF0E
0x3_FF00–0x3_FF0B
0x3_FF10–0x3_FFFF
Global Address
BDMSTS
Register
0x3_FF0F
BDMACT
ENBDM
UNSEC
TRACE
SDV
Interface
Serial
Figure
Control
Data
MM912_634 Advance Information, Rev. 4.0
Figure 56. BDM Block Diagram
56.
Table 259. BDM Memory Map
Standard BDM Firmware
16-Bit Shift Register
Secured BDM Firmware
Family ID (part of BDM firmware ROM)
Instruction Code
LOOKUP TABLE
LOOKUP TABLE
Execution
and
BDM firmware ROM
BDM firmware ROM
BDM registers
Module
Bus Interface
Control Logic
and
(Bytes)
Size
240
12
3
1
Address
Data
Control
Clocks
182