MC68F375BGMZP33 Freescale Semiconductor, MC68F375BGMZP33 Datasheet - Page 76

• Manufacturer Part Number: MC68F375BGMZP33
• Description: IC MPU 32BIT 33MHZ 217-PBGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68F375BGMZP33

• Processor Type: M683xx 32-Bit
• Speed: 33MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 217-PBGA
• Processor Series: M683xx
• Core: CPU32
• Data Bus Width: 32 bit
• Program Memory Type: Flash
• Program Memory Size: 256 KB
• Data Ram Size: 10 KB
• Interface Type: SPI, SCI, CAN
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 16
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Lead Free Status / Rohs Status: No

3.10.6 BDM Commands
MC68F375
REFERENCE MANUAL
The CPU writes a unique value indicating the source of BDM transition into temporary
register A (ATEMP) as part of the process of entering BDM. A user can poll ATEMP
and determine the source (refer to
mand (RSREG). ATEMP is used in most debugger commands for temporary storage.
It is imperative that the RSREG command be the first command issued after transition
into BDM.
A double bus fault during initial stack pointer/program counter (SP/PC) fetch sequence
is distinguished by a value of 0xFFFFFFFF in the current instruction PC. At no other
time will the processor write an odd value into this register.
BDM commands consist of one 16-bit operation word and can include one or more 16-
bit extension words. Each incoming word is read as it is assembled by the serial inter-
face. The microcode routine corresponding to a command is executed as soon as the
command is complete. Result operands are loaded into the output shift register to be
shifted out as the next command is read. This process is repeated for each command
until the CPU returns to normal operating mode.
ground mode commands.
NOTES:
Hardware Breakpoint
1. Special status word (SSW) is described in detail in the
BGND Instruction
Double Bus Fault
Manual
Source
Table 3-5 Polling the BDM Entry Source
Freescale Semiconductor, Inc.
(CPU32RM/AD).
For More Information On This Product,
CENTRAL PROCESSOR UNIT
Go to: www.freescale.com
Rev. 25 June 03
Table
ATEMP[31:16]
0x0000
0x0000
SSW
3-5) by issuing a read system register com-
1
Table 3-6
ATEMP[15:0]
CPU32 Reference
0xFFFF
0x0001
0x0000
is a summary of back-
MOTOROLA
3-22